AeroShell Oils 65, 80, 100, and 120 are straight mineral oils blended from selected high-viscosity index base oils. These oils do not contain any additives except for very small amounts of pour point depressant (which aids to improve fluidity at very low temperatures) and an anti-oxidant.
The above oils are approved for all aviation piston engines of civil aircraft when the use of an oil not containing a dispersant additive is required. However, they should also be used during the break-in of a new aviation piston engine or those recently overhauled.
AeroShell Oils 65, 80, 100, and 120 are produced to meet fully the SAE specification J1966 (Grades SAE 30, 40, 50 and 60 respectively).