While most engine oils provide protection against wear and tear, in some cases, the protective film is not thick enough to fill those larger crevices. For that reason, we have new formulations of oils with a thicker consistency that can heavenly coat even old heavy duty diesel engines that work 24/7. Engine parts should never touch, and that is why high mileage lubrication is so important both for personal vehicles and commercial ones. And we are here to learn everything about it in an easy and quick way. Let us dive into the work of high mileage lubricants.