Testing is over for this liquid gold. We got over 28 gallons on a C6BB. It will Build more power and will stop engine wear, Makes your engine run cooler, Longer run times, Brings life back to old engines. Will not allow build up and will not change engine timings. Want to get a few extra gallons more out of your engine ? Try this. Only as a lat resort when racing and if you suck dirt or loose the Pinch. Do not use as after run oil. Add A few drops down head and carb before 1st race of the day and turn over to coat inside engine only if the engine won't stay tuned because of lost compresssion. Connect fuel line and glow starter , Start and run until cleared.