New product launch: ValveCare-3

We would like to introduce our latest development in the Prins ‘Care’ product range: ValveCare-3!

ValveCare-3 is an electronically controlled dosing system for petrol engines (MPI, DPI, DI, DI-MPI) that are converted to LPG or CNG. Together with the Prins ValveCare additive, the system aids to keep the combustion chamber cleaner, and to reduce wear of valves, valve seats and the petrol injectors.

The valves and valve seats of a number of cars are more sensitive for wear when they run on LPG or CNG. Therefore, we developed ValveCare-3. To install ValveCare-3 is not necessary for all cars, but for some engines Prins highly recommends it. Your local installer can advise you on this.

Download ValveCare-3 flyer.

Prins ValveCare-3 system

ValveCare-3 system components

ValveCare-3 is completely integrated in the Prins LPG/CNG system. The Prins ValveCare additive has proven to be reliable, effective and efficient. Your car will only have additive consumption when running on LPG/CNG.

The following components will be installed in the engine compartment of your car:
1. The computer: to ensure system control;
2. The injectors: to inject the correct amount of ValveCare per cylinder;
3. The additive-reservoir: for the ValveCare fluid.


The additive-reservoir can be refilled easily at any time. In case the reservoir is empty, the Prins Fuel Selector Switch will indicate a blue blinking exclamation mark. As long as the exclamation ark is blinking you can continue your journey on LPG/CNG, but make sure to refill soon. You can buy this ValveCare bottle at your local Prins workshop. One bottle of ValveCare (1L) is sufficient for approx. 1.000 liter fuel. Do not use or mix other additives with the original blue Prins ValveCare additive.


Watch & learn more about the Prins ValveCare-3 system: