Converting a petrol car to CNG is a technical and administrative project, not simply a matter of fitting a cylinder. The vehicle, engine management system and conversion kit must be assessed together, then installed and documented through the process that currently applies in the owner's location.
This guide explains product and selection principles. It does not confirm compatibility, replace model-specific documents or provide a repair procedure.
Confirm suitability before selecting a kit
Ask a qualified installer to check the exact make, model, engine code, emission generation and available boot space. The appropriate route may be Conventional CNG, Sequential CNG—including an OBD-compatible controller where the exact application requires it—or Direct Injection CNG; no single kit is suitable for every petrol car.
Start with the MIJO CNG vehicle approval list. Select the emission category and make, then match the model and engine capacity. Confirm the exact variant and current approval documents with MIJO before fitment.
How a Thar CNG enquiry is assessed
A Thar CNG enquiry does not by itself establish factory availability or aftermarket eligibility. MIJO must verify the exact petrol engine, variant, model year, proposed system and applicable documents; this is not a diesel-to-CNG conversion claim.
Vehicle CNG uses dedicated automotive hardware
Vehicle CNG requires application-specific automotive components, professional installation and the applicable documentation. Domestic LPG cylinders, regulators, hoses and appliances must never be connected to a vehicle CNG system.
What professional installation involves
The work normally includes secure cylinder mounting, high-pressure pipe routing, a filling valve, reducer, shut-off devices, injectors or mixer, wiring and calibration. A complete job should include leak and function checks under the conditions specified for that system.
How much will CNG installation cost?
Compare the complete fitted quotation for your exact vehicle, including the selected system, cylinder and valve, installation, calibration, documentation scope and applicable taxes. Use the CNG kit price and quotation guide to check what is included before comparing prices.
Documentation, RC endorsement and care
Requirements for approved components, inspection, insurance notification and RC endorsement may vary and can be revised. Verify the current documents and sequence with the local RTO, insurer and authorised installer before proceeding, then retain invoices and certificates for future service or inspection.
Use MIJO’s state-wise dealer contacts to discuss the available fitment route for your city. Call first and share the make, model, year, engine and requirement before planning a visit.