Why is it Important to Use Special Engine Oils for LPG Vehicles?

LPG and gasoline are two different fuels. LPG consists of a mixture of hydrocarbon gases called propane and butane. Butane has 3 carbons while propane has 4. Gasoline contains hydrocarbon chains with a much higher molecular weight than LPG and includes nitrogen and sulfur compounds with different structures than hydrocarbons.
Since these two fuels have different structures, the calorie values that occur during their combustion are also different. In other words, when the same amount of LPG and gasoline is burned, it produces different amounts of energy and heat.
Let's think about two vehicles of the same brand and model, at the same kilometer, used for the same amount of time and with the same engine wear, one with a gasoline engine and the other with LPG conversion. If we compare these two vehicles, we can see that their fuel consumption, combustion duration of the fuel they use and the resulting heat are not the same. Therefore, the needs of gasoline engines that consume gasoline and gasoline engines with LPG fuel conversion are different from each other. We can list the situations during and after the operation of these different engines as follows.
  • LPG needs more air to burn; therefore, engines using LPG fuel absorb more air. The vehicle with LGP fuel conversion has a higher amount of thermal load on its engine than the gasoline engine.
  • Since the mixture of 'LPG and Air' burns more slowly than that of 'Gasoline and Air', the walls of the combustion chamber in the engine of the LPG vehicle and the cylinders are exposed to high temperature for a longer period of time.
  • The ambient operating temperature of an LPG engine is higher than that of a gasoline engine. For this reason, the LPG engine operates at a relatively higher temperature. As a result, the amount of evaporation in the engine oil is higher in the LPG engine.
  • In an LPG engine, the intake valves cool more slowly than in a gasoline engine as they do not contact any liquids such as gasoline.
  • Due to the higher temperature and higher air intake, more oxidation and corrosion occur in the LPG fuel conversion engine compared to the gasoline engine.
For such cases that arise due to different fuel sources, it is recommended that the characteristics of the engine oil that should work in harmony with the fuel should also be different. For this reason, engine oils in LPG vehicles are expected to display the following characteristics.
  • Oxidation resistance and stability
  • Low amount of evaporation
  • High protection against corrosion
  • Highly dispersing and detergent
  • Highly lubricating
  • High TBN (total base number) value
Have No Doubt About the Power of Your LPG Vehicle
Specially designed for the needs of LPG vehicles, Petrol Ofisi Maxima Auto LPG series offers superior protection for the engine without wearing you or your LPG vehicle. Maxima AUTO LPG series never lets your vehicle underperform and guarantees a powerful journey!

Petrol Ofisi Maxima Auto LPG 5W-30 for New Generation LPG Vehicles
Maxima AUTO LPG 5W-30 ensures reduction control with 30% less evaporation loss compared to the standards* thanks to its special synthetic formula. It is developed for LPG vehicles with new generation engines thanks to its high engine cleaning and improved resistance against oxidation.
*In accordance with the ACEA A3/B4 standard


Recommended applications for Maxima AUTO LPG 5W-30:

In passenger cars and light commercial vehicles with a new generation engine with LPG fuel conversion
  • In vehicles with factory-installed LPG fuel system
  • In oil additions of all LPG vehicles