I like MolaKule's little mystery oil quizzes. So here is one for y'all - - would you run this in your car or truck? YES - it is an internal combustion engine oil - - - - Spark ignition, not diesel. The application might surprise you a bit... or a LOT! Zinc PPM and Phosphorus PPM don't mean everything in the world of "long engine life" - . These engines run more hours before overhaul than ANY engine you will ever own.