Autogas Systems

Prins LPG Autogas Systems

Prins – world leader in alternative fuel systems

Prins Autogassytemen BV, a Westport company, has been a world leader in the development of alternative fuel systems for almost 30 years. It has acquired a reputation of excellence for providing its OEM, Country Importers and after market customers with cost-effective and innovative solutions for the wide range of engine types available on the market today. Prins is a global supplier of alternative fuel systems and components for automotive, bus, HDV, industrial and marine applications and has established distribution channels in over 50 countries. Its vast network of dedicated professionals is available to provide after sales customer and technical service.

In co-operation with Keihin Corporation of Japan, one of the world’s most important manufacturers of OE fuel systems, Prins has developed a high-tech sequential gaseous injection system (VSI system), which is suitable for both Liquid Petroleum Gas (LPG) and Compressed Natural Gas (CNG) applications. Prins is working closely with its global customer base to ensure its systems and components work seamlessly with the latest automotive technology providing best in class solutions for mono-,bi- and dual fuel applications. Prins Autogassystemen B.V. is NEN-EN-ISO-9001:2008 certified. All components are in-house tested and comply with EU-R67-01/R110/R115, CSA and EPA regulations. Prins C.O.P. for all components is based on 100% testing prior to delivery.

Quality and Innovation

Autogas Ireland is exclusive Irish importer, distributor and installer of renowned Prins Autogas Systems.


Prins Direct LiquiMax-2.0 LPG Autogas System

Parallel to the OEM fuel system, the Prins Direct LiquiMax-2.0 system has been designed for  bi-fuel or mono-fuel LPG operation on vehicles with Direct Fuel Injection technology. The Direct LiquiMax-2.0 system is designed for engines with direct fuel injection systems, which means that fuel is injected under high pressure (20-250 bar) directly into the cylinder instead of being injected into the manifold (port injection). Taking advantage of the existing OEM-DI components, the Direct LiquiMax-2.0 performance is equal to that of petrol. With the Direct LiquiMax-2.0 system the driver will experience no difference between LPG and petrol.


Prins VSI-2.0 LPG Autogas System

The entire new Prins VSI-2.0 system is the latest development in alternative fuels. The system is an evolution of the VSI system which has proven itself over the last 10 years. The Prins VSI-2.0 system is available as a LPG as well as a CNG version and is also suitable for the latest generation Direct Injection engines (VSI-DI), also for CNG. The key components of the system are all of OEM quality and specially designed for LPG and CNG applications. All components comply with the strictest regulations and certifications. The installation of the components is very easy due to the compact design of the components. The dedicated diagnostic software is unique and enables fine tuning the VSI-2.0 system for optimal performance and emission reduction. Different tank options are available for the storage of the LPG or CNG.


Prins ValveCare System

ValveCare is a unique additive dosing system, developed exclusively for almost all Prins systems. The system is suitable for all combustion engines, except direct injection engines, with alternative fuels such as LPG and CNG. ValveCare is used to provide the engine the correct dosage of a specially formulated additive which prevents premature valve and valve seat wear. The ValveCare additive has been extensively tested on a number of engines with excellent results.

Why ValveCare?

The valves and the valve seats of some engines are more sensitive to wear when driving on LPG or CNG. This issue does not occur with petrol, because an additive that is present in the fuel lubricates of the valves and the valve seats. This additive is not present in LPG or CNG. With the innovative ValveCare dosing system, it is possible to inject this additive under pressure into the engine together with the LPG or CNG, thus significantly reducing the wear of the valves and the valve seats.


• Applicable on all engines, except direct injection engines, equipped with a Prins system
• Always the correct dosage of ValveCare additive based on the actual LPG/CNG consumption
• Economical consumption of additive due to its correct dosage
• Decreases valves and valve seats’ wear
• Fully automatic operation
• Also applicable for turbocharged engines
• Optimal performance, even on heavy loads
• Equal dosage of ValveCare additive over all cylinders through the unique dosing unit
• Buzzer of Prins system will sound when running out of ValveCare additive


Prins InjectorCare solution

InjectorCare by Prins Autogassystemen is a cleaning fluid specially developed for cleaning gas injectors, and DI injectors. To keep the Prins LPG/CNG system and the original fuel system in optimum condition and to ensure a long service lifespan Prins recommends to use this product.


• Cleaning LPG/CNG injectors and fuel systems effectively
• Cleaning of the DI injectors and prevent DI engine pollution
• Prevents high repair costs
• High success rate
• Does not harm the gas injector seats
• Quick and easy servicing procedure
• Tested and approved for all Prins light-duty applications

Why InjectorCare?

InjectorCare easily removes heavy-ends and oil residue that may be left behind in the original fuel system and LPG/CNG system over time. Most of the times this is caused by a poor fuel quality. The heavy ingredients in fuels form a sludge / syrup-like substance which makes LPG/CNG injectors and other engine parts no longer function properly (e.g. sticking injector) or even fail.

Autogas is Cheap

Autogas price is about half price of petrol, therefore you can easily save thousands by converting your car to LPG – the more you drive the more you save. Conversion cost comes back to you in a few months – you save 40-50% with every tank filling comparing to petrol.

Autogas is Safe

The LPG Autogas systems in today’s modern vehicles are designed and tested to be very safe.  They are safe to fill, easy to service and safe in a vehicle accident situation. All components are stress tested to many times their normal operating parameters prior to installation.

Autogas is Clean

With an increasing need to protect the world we live in, it’s good news to find that Autogas offers an option to help reduce harmful emissions. Autogas emits 10-12% less CO2 and 53% less NOx than petrol and 120 times less small particle emissions than diesel.

Our Recent Conversions

Browse through the selection of vehicles that we have recently converted to Autogas

2007 Volvo S60
Prins VSI2.0 LPG System
Converted: 01/2016
2005 BMW 525i
Prins VSI2.0 LPG System
Converted: 11/2015
2007 Mercedes S350
Prins VSI2.0 LPG System
Converted: 07/2015
2008 Mazda CX7
Dedicated Prins DI System
Converted: 12/2015
2005 Lexus GS300
Dedicated Prins LPG System
Converted: 02/2016

Start saving up to 50% on every tank filling

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