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Aircraft Engine Oil

Aviation Oil Specifications

Reducing friction losses in an engine is done by taking into consideration circumstances as engine usage, ambient temperature, time of year, location, engine design and selecting the correct oil. The engine manufacturer usually recommends a certain type of oil to use under different circumstances.

Lubricating oil plays an important part in the life of the engine and during maintenance it will be replaced, on certified aircraft the pilot can only replenish it. Without oil the engine would fail within minutes, keeping a watchful eye during flight is therefore important.

AeroShell supplies the aviation sector with a number of products, ranging from fuel to piston and turbine engine oil. On these pages we discuss the most common types.

AeroShell Piston Engine Oils

Detailed specifications in this Aeroshell book on aviation oils.

Excerpt from the document:

For many years the performance of aircraft piston engines was such that they could be lubricated satisfactorily by means of straight mineral oils, blended from specially selected petroleum base stocks. However, demand for oils with higher degrees of thermal and oxidation stability necessitated ‘fortifying’ them with the addition of small quantities of non-petroleum materials.

The first additives incorporated in straight mineral piston engine oils were based on the metallic salts of barium and calcium. In highly-rated engines the performance of these oils with respect to oxidation and thermal stability was excellent

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