So maybe you can explain to the crowd how so many millions of engines have survived to this point without some kind of engine saving attachment sold by snake oil salesmen.
Besides, burning oil in a very minute amount has no effect on the vast majority of the engines in cars today.
If you want...
Actually, I have, small turbo engines like the ones in the four Runner. Large high-performance engines may benefit, the manufacturer of the kits certainly benefit. There are tens of millions of small turbo engines that have put on billions of miles without benefit of these kits and seem to have...