A car LPG converter expert installs an autogas system that lets a petrol vehicle run on LPG instead of — or alongside — petrol, typically cutting fuel costs significantly while producing a cleaner exhaust profile. Converting a car to LPG isn't a weekend DIY project: it involves pressure-rated components, a dedicated tank, and a conversion that needs to be done correctly to be both safe and legal to operate. Here's what the process actually involves, what it costs, and why the installer you choose matters as much as the kit itself.
If you're new to LPG as a fuel, our foundational guide is a good starting point: What Is LPG? A Complete Beginner's Guide .
How Does a Car LPG Conversion Work?
An LPG (autogas) conversion adds a secondary fuel system to a petrol vehicle. The core components include:
An LPG tank
Usually mounted in the boot or under the vehicle, sized according to the car and expected driving range.
A vaporizer/regulator
Converts liquid LPG into gas form and regulates pressure before it reaches the engine.
An injection or mixer system
Delivers the gas into the engine's air intake, either through sequential injection (more precise, common in modern conversions) or a simpler mixer system.
A switch or ECU control unit
Lets the driver switch between petrol and LPG, or manages the switch automatically.
Once installed, most converted vehicles can run on either fuel, giving drivers the flexibility to use LPG for regular driving and petrol as a backup.
Why Convert a Car to LPG?
Lower fuel costs
LPG is typically cheaper per litre than petrol, and the cost difference adds up quickly for high-mileage drivers.
Cleaner combustion
LPG burns more cleanly than petrol, producing fewer particulates.
Dual-fuel flexibility
Most conversions retain the original petrol system, so you're never stranded if LPG isn't available nearby.
Engine-friendly
LPG combustion tends to be gentler on engine components compared to petrol over time.
The main trade-off is the upfront conversion cost and the boot space taken up by the tank — which is why understanding the process before committing matters.
Types of Conversion Kits
Not all LPG conversion kits are equal, and the right choice depends on the vehicle and how it will be used:
Mixer systems
Simpler and generally more affordable, suited to older or carbureted engines.
Sequential injection systems
More precise, better suited to modern fuel-injected engines, generally offering better performance and fuel efficiency on LPG.
A qualified converter expert will assess your specific vehicle — engine type, age, and typical use — before recommending a kit, rather than fitting a one-size-fits-all system.
What Does an LPG Conversion Cost?
Conversion costs vary depending on the kit type, tank size, and vehicle complexity. Sequential injection systems generally cost more than mixer systems, but often pay for themselves faster through better fuel efficiency, especially for drivers covering high mileage.
Given how much this varies by vehicle, it's worth getting a specific quote from a certified installer rather than relying on a general estimate.
Is Converting Your Car to LPG Legal and Safe?
Yes — when the conversion is carried out by a qualified installer using certified components and the vehicle is inspected afterward. An improperly installed system carries real risks: gas leaks, incorrect pressure regulation, or a poorly mounted tank can all create safety hazards.
This is why conversions should always be treated with the same seriousness as any other LPG installation — see our broader guide on essential LPG safety tips for the underlying safety principles that apply here too.
Butane, Propane, and Autogas
Autogas is typically a butane-propane blend, similar to the LPG used for cooking and heating, though the exact ratio can be optimized for vehicle performance.
Understanding the difference between the two gases helps explain why autogas performs the way it does across different conditions — we cover this in detail in Butane vs Propane: Which Is Right for You? .
Maintenance After Conversion
A converted vehicle needs some additional awareness compared to a petrol-only car:
- ✓ Periodic inspection of the LPG tank and fittings, similar in principle to any pressure vessel system
- ✓ Awareness of tank expiry/recertification timelines where applicable
- ✓ Using a qualified technician for any LPG-system-specific repairs, rather than a general mechanic unfamiliar with autogas systems
If a vehicle's LPG tank ever needs to be removed, relocated, or the system decommissioned, that work should also be handled by professionals experienced with LPG systems — the same core principles covered in our LPG tank relocation and transportation guide apply here.
Choosing a Car LPG Converter Expert
Not every general mechanic is qualified to carry out an LPG conversion. Look for an installer who:
Has specific experience and training in LPG/autogas systems, not just general vehicle repair
Uses certified, quality-tested conversion kits and components
Can explain the conversion clearly, including expected costs, timelines, and maintenance needs
Offers post-installation inspection and support
Why This Matters: Choosing the Right Expert
A poorly executed conversion can undo all the benefits LPG offers — costing you more in repairs and risk than it saves in fuel. OLPUL Enterprises brings pressure vessel and LPG engineering expertise from tank inspection and installation work across Kenya, led by Martin Ng'ang'a Mutambo, a DOSHS-registered pressure vessels examiner (Reg. No. PLT/OSH-24-24-0001381) — the same safety-first standards we apply to stationary LPG systems carry over to how we think about vehicle conversion projects.
Frequently Asked Questions
Is it worth converting a car to LPG?
For high-mileage drivers, yes — lower per-litre fuel costs typically offset the conversion cost over time. The exact payback period depends on the kit chosen and how much you drive.
Does converting to LPG damage my car's engine?
No, when installed correctly. LPG combustion is generally gentler on engine components than petrol, though the conversion should always be done by a qualified installer using appropriate components for your engine type.
Can I still use petrol after converting my car to LPG?
Yes, most conversions are dual-fuel, meaning the original petrol system remains functional and you can switch between the two fuels.
How much boot space does an LPG tank take up?
This depends on the tank size and vehicle, but most conversions do reduce available boot space to some degree. Your installer can advise on tank options that balance range against space.
Is LPG conversion legal in Kenya?
Conversions carried out by qualified installers using certified components, with proper post-installation inspection, are the standard for safe and compliant operation.
How do I find a qualified car LPG converter expert?
Look for an installer with specific LPG/autogas experience, certified components, and a track record of proper installation and post-conversion support — rather than a general mechanic offering conversions as a side service.
OLPUL Enterprises
Considering an LPG Conversion?
Talk to OLPUL Enterprises about safe, professionally executed LPG conversions and the engineering principles behind a system built to last.