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Straight 65 Grade, Mineral Break-in Oil

Oils referred to as straight are comprised of pure mineral oils, sometimes combined with certain additives such as pour-point depressants to improve the fluidity of these lubricants at low temperatures.

Break-in oils are not intended for in-flight usage. As a rule of thumb, these oils are supposed to be implemented for a very short time (often less than 24 hours), and only for the purpose of breaking in engines. Straight 65 Grade Mineral, Break-in Oil is often employed in the four-stroke aircraft piston engines and some antique aircraft.


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  • AeroShell Oil 65