1. Why the Jimny Is a Difficult CNG Candidate (Read This First)

Every other page on this site begins by explaining why a particular Maruti is a good CNG car. This page has to start with the opposite, because the Jimny has three structural disadvantages that every owner considering CNG kit installation in Maruti Suzuki Jimny needs to understand before booking.

Disadvantage 1 — The 208-litre boot is the smallest in the Maruti range

The Jimny's boot is not just small — it is the smallest of any Maruti we convert. A 55L cylinder leaves roughly 80 litres of usable space, which is enough for a couple of soft bags or a small overnight case, but nothing more. A 45L cylinder leaves slightly more space but drops the range to roughly 220–260 km. Any cylinder larger than 55L is not worth doing — the rear suspension sags and the boot becomes completely unusable.

Disadvantage 2 — The ladder frame and AllGrip 4x4 complicate the installation

The Jimny's high-pressure line has to run from the boot to the engine bay along the underbody, and on a ladder-frame vehicle with a transfer case, front and rear propeller shafts, a rear differential and a full-time four-wheel-drive system, much of that underbody corridor is already occupied. The installer has to route the line carefully to avoid heat sources, moving parts and the propeller shafts. This is why the Jimny takes 8–10 hours rather than the 4–6 hours a hatchback takes, and why the conversion costs more.

Disadvantage 3 — The 1.5L engine has more weight and drag to push

The Jimny weighs around 1,200 kg — the heaviest car in Maruti's range — and its full-time four-wheel-drive system adds drag and mechanical losses. The 1.5L K15C engine is the same one used in the Brezza and Ertiga, but it works harder in the Jimny because of the weight and the drivetrain. That is why the Jimny's CNG mileage is the lowest in the group — 18–24 km/kg against 20–26 for the equivalent Ertiga, and 26–35 for the Alto K10.

For the right owner, though, the advantages are real. The Jimny shares the K15C engine with several Marutis we convert, so the calibration expertise is already in-house. The 1.5L engine has enough torque to carry the cylinder and four passengers without feeling completely gutless. And for a daily city commuter covering 1,500+ km a month, the fuel savings still pay back the conversion cost within roughly 16–20 months. The rest of this page explains exactly how.

2. Jimny Generations, Engines & Compatibility

The Jimny has been sold in India in its current five-door form since 2023 (with a three-door variant arriving later). The CNG kit installation in Maruti Suzuki Jimny approach is consistent across the range, but there are differences between the manual and automatic, and between the standard and higher trims.

Current Jimny (2023–Present)

• 1.5L K15C: 4-cylinder, 105 PS / 134 Nm, DualJet with dual injectors. This is the only engine offered in the Jimny in India. It is the same unit used in the Brezza, Ertiga, XL6 and Grand Vitara, so the kit selection and calibration are well documented.
• 5-speed manual: The most common configuration, and the easiest to convert. Standard sequential MPI kit with a high-flow reducer.
• 4-speed torque-converter automatic: Fully convertible, but the automatic needs careful load-tested calibration because the Jimny's heavy drivetrain amplifies torque changes.
• AllGrip Pro 4x4: Full-time four-wheel-drive with a transfer case and low-range. The drivetrain occupies much of the underbody, which is the main reason the Jimny is an advanced installation.
• Ladder-frame chassis: The Jimny is a body-on-frame vehicle, not a monocoque. This means the cylinder bracket must attach to the ladder rails rather than a flat floor pan, which is a different fabrication job.

The Jimny is petrol-only in India — there is no diesel variant. All Jimnys sold in India use the 1.5L K15C engine and the AllGrip Pro 4x4 system.

3. No Factory S-CNG — What That Means for You

Maruti has an extensive factory S-CNG lineup — Alto K10, S-Presso, Celerio, WagonR, Dzire, Fronx, Brezza, Ertiga, XL6 and Eeco all offer factory CNG on selected trims. The Jimny does not. Maruti has not offered a factory CNG option on the Jimny, and there is no indication that it will.

This has three practical consequences for CNG kit installation in Maruti Suzuki Jimny:

• There is no warranty-preserving alternative. Unlike a Brezza or Ertiga owner who can choose factory S-CNG and keep the full warranty, a Jimny owner who wants CNG must accept that the engine, powertrain and 4x4 system warranty will be affected. There is no way around this.
• Every CNG Jimny on the road is an aftermarket conversion. That makes the quality of the installer and the documentation far more important than on a model where factory CNG exists. A poorly documented conversion cannot be compared against a factory baseline.
• You can choose the kit and the layout. Because there is no factory option to compare against, you are free to pick a premium Italian kit and a cylinder size (45L or 55L) that suits your use case — though on the Jimny, all the options are compromises.

4. Which CNG Kit Is Right for Your Jimny?

Only a sequential MPI (multi-point injection) kit should be used for CNG kit installation in Maruti Suzuki Jimny. A venturi or open-loop kit has no place on a BS6 1.5L engine — it causes backfiring, check engine lights, power loss and RTO rejection. On the Jimny, the additional off-road use case makes the consequences of poor tuning worse, because a lean-running engine under full load on a steep incline can do real damage.

Recommended Kit Specification for the K15C

• Type: Sequential gas injection with dedicated CNG ECU
• OBD-II compatibility: Mandatory for BS6 vehicles and required for AIS-024 compliance
• Reducer: High-flow unit — the Jimny is the heaviest car in Maruti's range and often carries four passengers plus off-road equipment, so an undersized reducer will lean out at high RPM and under load
• Injectors: Matched to the 1.5L 4-cylinder engine; a kit sized for a 1.0L or 1.2L will cause lean running
• Certification: AIS-024 (and AIS-028 where applicable) type approval
• Safety: Excess-flow valve, pressure relief device, manual shut-off valve, and a PESO-certified cylinder with a valid hydro-test
• Cylinder: 45L or 55L water capacity — see Section 6 for the trade-offs

Popular Kit Brands for the Jimny

5. Performance & Real-World Mileage After Conversion

The Jimny does not have a factory CNG figure in India to compare against, so these numbers come from our own road testing and from owner reports after CNG kit installation in Maruti Suzuki Jimny.

Figures assume a correctly calibrated sequential kit with a high-flow reducer, a 55L water-capacity cylinder (≈ 44L usable gas, holding roughly 10–11 kg of CNG), normal tyre pressures and mixed city/highway driving. 4WD mode adds drag and reduces mileage by roughly 1–2 km/kg. Off-road driving should not be done on gas — see Section 20.

What About Power Loss?

With a properly tuned sequential kit, expect an 8–12% reduction in peak power and torque on gas. On the Jimny, that reduction is felt more than in any other Maruti because of the vehicle's weight and the drag of the 4x4 system. In practice:

• City driving with 1–2 occupants: Noticeable but manageable. The K15C engine has enough torque that the Jimny pulls cleanly from low speed, but the car feels less sprightly than on petrol.
• Highway with a full load: The reduction is more pronounced. You will use a lower gear than you would on petrol, particularly on inclines and during overtakes.
• Off-road: We strongly recommend running on petrol for any genuine off-road driving. The combination of reduced torque, the extra weight of the cylinder and the demands of low-range 4x4 work makes gas a poor choice on rough terrain.
• 4WD mode on gas: The extra drag of the 4x4 system plus the gas torque deficit means the car feels noticeably slower. Not dangerous, but not the Jimny you bought either.

6. Boot Space & Cylinder Layouts — The Jimny's Biggest Compromise

This is the single most important practical decision in CNG kit installation in Maruti Suzuki Jimny, and it is also where the Jimny loses decisively against every other Maruti. The 208-litre boot is the smallest we work with. Here is exactly how the options compare.

Option A — 55L Water Capacity Cylinder (Recommended for Range)

• Best range on gas: roughly 280–320 km on a 55L cylinder with a light load
• Leaves roughly 80 litres of usable space — enough for two soft bags, a small overnight case or a week's grocery shop
• Noticeable rear suspension sag when loaded; the Jimny's ladder frame handles the weight but the ride height drops
• This is the layout we recommend if range is your priority and you rarely need the boot

Option B — 45L Water Capacity Cylinder (Recommended for Boot Space)

• Range drops to roughly 220–260 km on a 45L cylinder with a light load
• Leaves roughly 110 litres of usable space — a meaningful improvement over the 55L option
• Sits lower in the boot, so the load floor is more usable for taller items
• This is the layout we recommend if you need to keep some practicality and can live with shorter range
• The trade-off is more frequent CNG refuelling — plan for a fill-up every 220–260 km

Option C — 60L+ Cylinder (Not Recommended on the Jimny)

• Loads the rear suspension beyond what the Jimny's ladder frame is designed for, even with the extra weight capacity of a 4x4
• Noticeable rear sagging when loaded, which affects off-road articulation and ground clearance
• Boot is effectively unusable for anything beyond a small bag
• The extra range is not worth the practical and off-road compromise on this vehicle

Practical Tips for the Jimny Boot After CNG Installation

• Ask for a custom boot mat and cylinder cover — it protects the cylinder from luggage and off-road equipment impacts and looks far neater.
• On a Jimny, the parcel shelf is often removed to fit the cylinder — check with your installer that the shelf can still be used or plan for a soft cover.
• Never stack off-road equipment, recovery gear or heavy tools directly against the cylinder valve or the high-pressure line.
• Ensure the cylinder valve remains accessible for filling and emergency shut-off.
• If you genuinely need the boot for off-road trips, the Jimny is not a good CNG candidate — see Section 20 for a proper use-case breakdown.

7. The Ladder Frame & AllGrip 4x4 Installation Challenge

This is the technical section that most Jimny CNG pages will skip. It is also the reason the Jimny takes longer and costs more to convert than any other Maruti we work on.

The Ladder Frame

• The Jimny does not have a flat monocoque floor pan like a hatchback. It has two parallel steel ladder rails running the length of the vehicle, with a body sitting on top.
• This means the cylinder bracket cannot simply bolt to a flat boot floor. It has to be fabricated to attach to the ladder rails, with the load distributed across both rails rather than a single floor pan.
• This is more work than a hatchback bracket — typically 2–3 hours of fabrication rather than 1–1.5 hours.
• The upside is that a properly fabricated ladder-frame bracket is extremely strong and copes with the cylinder weight better than a monocoque bracket does.

The AllGrip Pro 4x4 System

• The Jimny has a transfer case, front and rear propeller shafts, a rear differential and a front differential built into the drivetrain.
• The high-pressure line from the cylinder to the engine bay has to run along the underbody — and on a Jimny, much of that corridor is occupied by the propeller shafts and the transfer case.
• The installer has to route the line above the propeller shafts where possible, or along the chassis rails away from heat sources and moving parts, with additional protection where the line passes near the exhaust or suspension components.
• A poorly routed line can chafe against the propeller shaft or the suspension — this is a serious safety issue and the main reason we insist on an installer with genuine ladder-frame 4x4 experience.

The Rear Axle & Suspension

• The Jimny uses a solid rear axle with coil springs and a four-link suspension arrangement.
• The cylinder bracket must not interfere with the coil springs, the axle articulation or the brake lines running along the rear axle.
• On a loaded off-road vehicle, the rear suspension travels much further than on a road car, so the routing of the line from the cylinder to the underbody has to allow for that movement.

8. Variant-by-Variant Compatibility for CNG Kit Installation in Maruti Suzuki Jimny

9. Installation Process Step-by-Step

A professional CNG kit installation in Maruti Suzuki Jimny takes about 8 to 10 hours at our workshop — the longest of any Maruti we convert. The extra time goes into the ladder-frame bracket fabrication, the 4x4 underbody routing and the load-tested calibration. Here is exactly what happens.

Step 1 — Pre-Installation Health Check & Layout Consultation (≈ 1.5 hours)

• OBD-II and 4x4 system scan for existing fault codes
• Compression test and spark plug inspection
• Check engine mounts, coolant level, battery health, rear suspension condition and transfer case operation
• Confirm 45L or 55L cylinder based on the owner's boot-space priority
• Inspect the underbody for a clear routing corridor past the transfer case and propeller shafts

Step 2 — Ladder-Frame Bracket Fabrication & Cylinder Mounting (≈ 3 hours)

• Fabricate a custom bracket that attaches to both ladder rails, spreading the cylinder load properly
• Bolt the bracket with anti-vibration padding and verify load distribution
• Install the cylinder with proper torque
• Route the high-pressure stainless steel line along the chassis rails, away from the propeller shafts, transfer case, exhaust and moving suspension components
• Install the filling valve in a protected position near the fuel filler

Step 3 — Reducer, Injectors & Plumbing (≈ 1.5 hours)

• Mount the high-flow reducer/vaporiser in the engine bay
• Tap into the engine coolant circuit to warm the reducer
• Drill and fit the gas injector rail onto the intake manifold
• Connect the low-pressure gas line from reducer to injector rail

Step 4 — Wiring & CNG ECU (≈ 1 hour)

• Mount the CNG ECU in a heat-protected location
• Wire the injector emulator, OBD link and changeover switch
• Install the gas level indicator and changeover switch on the dashboard
• Fuse and protect all electrical circuits properly

Step 5 — Leak Test & Pressurisation (≈ 45 minutes)

• Fill the system with gas and apply soap solution to every joint
• Check the excess-flow valve and pressure relief device operation
• Confirm zero leaks before proceeding

Step 6 — ECU Tuning & Road Test (≈ 2 hours)

• Connect a laptop to the CNG ECU and the car's OBD-II port
• Monitor short-term and long-term fuel trims on petrol and gas at idle, part load and full load
• Adjust the injection map for smooth idle, clean cold starts and correct power delivery
• Test with a load — four passengers or ballast — not just an empty vehicle
• 4AT only: road test in stop-and-go traffic and on a highway incline to verify shift behaviour and kickdown
• All Jimnys: verify that the 4x4 system engages and disengages correctly on gas, and that no drivetrain fault codes appear
• Verify no check engine light after a mixed 50+ km drive

Step 7 — Documentation Handover

• Installation certificate
• AIS-024 type approval certificate for the kit
• PESO hydro-test certificate for the cylinder
• Guidance on RTO submission and insurance endorsement

10. Complete Cost Breakdown for CNG Kit Installation in Maruti Suzuki Jimny (2026)

Optional Extras

• 45L cylinder instead of 55L: −₹1,000 to −₹2,000 (more boot space, less range)
• Premium Italian kit (Lovato/BRC): +₹5,000 – ₹8,000
• Heavy-duty 4x4 underbody line protection: ₹2,000 – ₹3,500
• Rear helper springs (for permanent 55L cylinder use): ₹5,000 – ₹7,000
• Annual Maintenance Contract (AMC): ₹4,000 – ₹5,500 per year

11. RTO Endorsement & Legal Requirements

Driving a Jimny after CNG kit installation in Maruti Suzuki Jimny without an updated Registration Certificate is illegal. The RTO must formally endorse the fuel type change on your RC.

Documents Required

• Original Registration Certificate (RC)
• Valid insurance policy (must be endorsed to include the CNG kit)
• Valid PUC certificate
• AIS-024 / AIS-028 type-approval certificate for the kit (provided by us)
• Installation certificate from the workshop (provided by us)
• PESO hydro-test certificate for the cylinder (provided by us)
• Application for alteration of vehicle (Form 26) with the prescribed fee
• Address proof and identity proof

Timeline

Endorsement typically takes 7 to 30 working days depending on your RTO district. Some states allow online submission through the Parivahan portal, which speeds things up considerably. We handle the complete process for you.

12. ECU Tuning for the K15C Engine

This is where a cheap installation and a professional one diverge sharply. The K15C uses DualJet injectors and is sensitive to air-fuel ratio errors, and on the Jimny the consequences are amplified by the vehicle's weight, its 4x4 drivetrain and the likelihood of the car being driven under load. A "plug-and-play" kit that is never calibrated will cause:

• Check Engine Light (CEL) illumination
• Rough idle and stalling at traffic signals
• Poor cold starts on gas
• Lean running under load — the most dangerous failure mode on a heavy 4x4, because it raises exhaust valve temperatures and can cause long-term engine damage
• Poor fuel economy — sometimes worse than petrol, which entirely defeats the purpose of the conversion

What Proper Calibration Involves

• Connecting a laptop to both the CNG ECU and the vehicle's OBD-II port simultaneously
• Recording short-term and long-term fuel trims on petrol at idle, part load and full load
• Adjusting the CNG injection map so gas trims mirror petrol trims within ±5%
• Testing with a load — four passengers or ballast — not just an empty vehicle
• Calibrating the changeover threshold, warm-up behaviour and the 4x4 engagement logic
• Verifying that no CEL or drivetrain fault code is triggered after 50+ km of mixed driving

A properly tuned CNG kit installation in Maruti Suzuki Jimny should feel close to petrol in normal driving, with no hesitation and no warning lights, and should hold clean fuel trims even when fully loaded.

13. 4AT (Automatic) Specific Notes

The Jimny 4AT uses a four-speed torque-converter automatic. It is fully compatible with CNG, but it is the most calibration-sensitive combination we work on in the Maruti range because of the Jimny's weight and drivetrain.

• Kickdown behaviour: The 4AT shifts based on engine load and throttle position, and it has only four ratios to work with. A torque reduction on gas can make the gearbox hunt between gears on inclines. This is fixed with proper load-based mapping, not by turning the gas pressure up.
• Torque-converter slip: In bumper-to-bumper traffic, a poorly tuned 4AT on gas can feel like it is slipping. Proper low-load mapping resolves this almost entirely.
• High-RPM petrol blend: For the 4AT we strongly recommend setting the changeover to petrol above roughly 4,000 RPM or under heavy throttle. This protects the gearbox from working against a torque deficit during kickdown.
• 4WD engagement: Set the CNG ECU to switch to petrol automatically when the transfer case is engaged in 4WD low range. This preserves the off-road capability the car was bought for.
• Road test is mandatory: Insist on a stop-and-go traffic test, a highway incline test, and a 4x4 engagement test before accepting delivery.

14. Maintenance & AMC Schedule After Conversion

CNG systems are low-maintenance, but they are not maintenance-free — and on a heavy 4x4 doing mixed road and occasional off-road work, neglect shows up fast. Following this schedule keeps your CNG kit installation in Maruti Suzuki Jimny running smoothly for years.

An Annual Maintenance Contract (AMC) bundles most of these tasks into a single yearly fee and typically includes unlimited leak checks, ECU diagnostics and 4x4 fault-code scans. For a Jimny doing mixed road and off-road work, an AMC is worth it — a single undiagnosed fault code on the 4x4 system can cost more to resolve than the AMC itself.

15. Warranty & Insurance Impact

Warranty

Aftermarket CNG kit installation in Maruti Suzuki Jimny typically voids the engine, powertrain and 4x4 system warranty. The remainder of the vehicle warranty — on bodywork, electricals, air conditioning and so on — generally stays intact, although this depends on your dealer's interpretation.

Because Maruti does not offer a factory CNG option on the Jimny, there is no warranty-preserving alternative. This is the central trade-off of converting this particular model, and it should be weighed carefully — the 4x4 system is the most expensive part of the car to repair.

Insurance

You must inform your insurer immediately after CNG kit installation in Maruti Suzuki Jimny. The policy needs to be endorsed to include the CNG kit as an insured accessory. Expect a premium increase in the range of ₹2,500 to ₹5,000 per year, given the vehicle's value and the kit's cost.

Failing to declare the CNG kit can result in claim rejection or a reduced settlement in the event of theft, fire or damage to the kit — and on a specialist off-road SUV, that is a large sum to write off.

16. Common Mistakes to Avoid

• Choosing a venturi kit: Cheaper upfront, but unsuitable for any BS6 engine. Causes backfiring, power loss and RTO rejection.
• Fitting a 1.0L or 1.2L kit: The most common cause of poor Jimny conversions. Insist on a correctly matched 1.5L high-flow kit.
• Skipping ECU calibration: A kit installed but never tuned is only half-installed. Insist on laptop calibration with fuel-trim verification, tested under load.
• Using a generic underbody bracket: The Jimny's ladder frame is not a flat floor pan. A generic bracket will not spread the load properly. Insist on a custom ladder-frame bracket.
• Poor high-pressure line routing: On a Jimny, a line routed near the propeller shafts or transfer case can chafe. Ask your installer specifically how they plan to route it — this is the single biggest safety issue on a Jimny CNG conversion.
• Not getting RTO endorsement: Illegal, and on a specialist SUV it destroys the resale value and creates insurance problems.
• Ignoring the leak test: Never accept a vehicle without witnessing a proper soap-solution leak test on every joint.
• Using a non-certified installer: Only AIS-024 certified workshops can issue valid documentation for RTO endorsement.
• Skipping the hydro test: Mandatory every 3 years by PESO. Driving with an expired hydro test is illegal and unsafe.
• Not informing the insurer: A simple call can save you a rejected claim later.
• Running off-road on gas: Reduced torque, extra weight and the demands of low-range 4x4 work make gas a poor choice on rough terrain. Switch to petrol for off-road use.
• Going with a 60L+ cylinder: On the Jimny's 208L boot, a large cylinder sags the rear suspension and makes the boot unusable. 55L is the maximum we recommend.

17. Jimny vs Other Marutis for CNG

This comparison makes the Jimny's position clear. It has the second-smallest boot in the group (only the Alto K10's 214L is comparable, and the Alto retains more usable space after conversion because of its shape), the lowest CNG mileage, the highest conversion cost and the most complex installation. The Grand Vitara, Brezza and Ertiga all offer a better combination of cargo space and simplicity for roughly the same mileage. The Jimny's appeal as a CNG car is limited to owners who specifically want the Jimny's off-road capability as their daily driver and are willing to accept the boot compromise.

18. Running Cost & Payback Calculation

Numbers make the case better than words. Here is a realistic comparison assuming petrol at ₹105/litre with 12 km/l real-world economy for a loaded Jimny, and CNG at ₹80/kg with 19 km/kg economy.

Figures are indicative and exclude maintenance differences. Actual savings depend on local fuel prices, passenger load, driving style and whether the 4x4 system is engaged. The Jimny's payback is longer than any other Maruti we convert because the conversion cost is higher and the CNG mileage is lower — but for a high-mileage daily driver, the numbers still work.

19. Pros & Cons of Jimny CNG

20. Should You Actually Convert Your Jimny? The Honest Use-Case Breakdown

This is the section that most CNG installers will not write. The Jimny is a genuinely compromised CNG car, and the honest answer to "should I convert my Jimny?" depends entirely on how you use it. Here is a straightforward use-case guide.

21. Frequently Asked Questions

How much does CNG kit installation in Maruti Suzuki Jimny cost?

Expect ₹55,000 to ₹65,000 all-inclusive for a sequential MPI kit with a 45L or 55L cylinder, custom ladder-frame bracket, 4x4 underbody routing work, installation labour and basic RTO paperwork assistance. This is the highest conversion cost in the Maruti range we work on. Premium Italian kits and 4AT calibration sit at the upper end.

What CNG mileage can I expect from a Jimny?

The 1.5L K15C returns 19–20 km/kg in the city and 22–24 km/kg on the highway with a light load in 2WD mode. With four passengers, luggage and the AC running, expect 17–19 km/kg. 4WD mode drops mileage by roughly 1–2 km/kg. The Jimny's weight (around 1,200 kg) and 4x4 drivetrain drag make its CNG mileage the lowest in the Maruti range.

Which cylinder size is best for the Jimny?

There is no ideal answer. A 55L cylinder gives the best range (roughly 280–320 km) but leaves only about 80 litres of usable boot space. A 45L cylinder leaves roughly 110 litres of boot space but drops the range to roughly 220–260 km. A 60L+ cylinder is not recommended — it sags the rear suspension and makes the boot unusable.

Does the Jimny's ladder frame make CNG installation harder?

Yes. The ladder frame means the cylinder bracket must attach to the chassis rails rather than a flat boot floor, which requires custom fabrication. The full-time four-wheel-drive system — with its transfer case, propeller shafts and rear differential — also occupies much of the underbody where the high-pressure line would normally run, so the installer has to plan the routing carefully. This is why the Jimny takes 8–10 hours rather than 4–6 hours.

Can I install a CNG kit in a Jimny 4AT?

Yes. The 4AT is fully convertible, but it needs careful load-tested calibration because the Jimny's heavy drivetrain amplifies torque changes. Insist on a road test in stop-and-go traffic, on a highway incline, and with the 4x4 system engaged before accepting delivery.

Does CNG kit installation in Maruti Suzuki Jimny void the warranty?

The engine, powertrain and 4x4 system warranty is typically voided. Other components generally retain their warranty. Because Maruti does not offer a factory CNG Jimny, there is no warranty-preserving alternative. If warranty is your top priority, do not convert.

Is the Jimny a good car for CNG conversion?

It depends entirely on how you use it. For a daily city driver who rarely uses the boot, CNG saves real money and works well. For an off-road enthusiast, family road-tripper or commercial user, the Jimny is a poor fit — the cylinder eats almost the entire boot and the reduced torque is felt under load. The Jimny is the most niche CNG conversion we offer.

Can I run the Jimny off-road on CNG?

We do not recommend it. Off-road use demands torque, and CNG reduces torque by 8–12%. Add the extra weight of the cylinder and the demands of low-range 4x4 work, and gas is a poor choice on rough terrain. Switch to petrol before heading off-road.

Is RTO endorsement mandatory after conversion?

Yes. You must get the fuel type change endorsed on your RC. Required documents include the AIS-024 certificate, PESO hydro-test certificate, installation certificate, updated insurance, PUC and RC. Endorsement usually takes 7–30 working days.

How long does the installation take?

Typically 8 to 10 hours at our workshop — the longest of any Maruti we convert. The extra time goes into the ladder-frame bracket fabrication, the 4x4 underbody routing and the load-tested calibration. Plan to drop the vehicle off in the morning and collect it the following morning.

Will the Jimny feel underpowered on CNG?

Yes, more than any other Maruti we convert. The Jimny's weight and 4x4 drag mean the 8–12% torque reduction is felt clearly, particularly with a full load or in 4WD mode. The car remains usable in the city, but you will notice the difference.

Is the Jimny noisy on gas?

The Jimny's four-cylinder K15C is smoother on gas than the three-cylinder engines in the Alto K10 and S-Presso, so the noise penalty is smaller. A premium Italian kit and proper calibration minimise the difference — and a good boot mat or parcel shelf helps reduce cabin noise.

How often does the cylinder need a hydro test?

Every 3 years, as mandated by PESO. This is a legal requirement and also a safety one. We provide hydro-testing as a standalone service.

Can I use CNG and petrol interchangeably?

Yes. The changeover switch lets you run on either fuel at any time. We recommend running on petrol for off-road use and for any heavy-load or steep-incline driving. Combined range on the Jimny with a 55L cylinder plus the petrol tank exceeds 600 km.

Will the CNG kit affect my insurance premium?

Yes. Expect an increase of ₹2,500 to ₹5,000 per year once the kit is declared and endorsed on the policy. The kit must be declared — not declaring it risks claim rejection.

Is CNG safe in a ladder-frame 4x4 like the Jimny?

Yes, when installed correctly. CNG cylinders are far stronger than petrol tanks — they are tested to extremely high burst pressures. The critical factors on the Jimny are a certified cylinder, a certified kit, a properly fabricated ladder-frame bracket, correctly routed high-pressure line past the propeller shafts and transfer case, and a professional installation with a documented leak test.

Do I lose the spare wheel?

No. The Jimny's spare wheel is mounted on the rear tailgate, so it remains fully accessible after CNG installation. This is actually an advantage over models with a spare wheel under the boot floor.

22. Book Your CNG Kit Installation in Maruti Suzuki Jimny Today

If you have read this far and are confident that CNG is right for your Jimny, we can help you choose the right kit, plan the correct cylinder layout, handle the ladder-frame and 4x4 installation properly, and complete the RTO endorsement without hassle. If you are still uncertain, call us — we will give you an honest assessment of whether the conversion makes sense for your use case, even if that means telling you not to do it.