Oil Additives!
turbinesurgun, Like everyone else I use to look for some additive that would make my engine run better... last longer... better mileage. . etc. . I've given up on that and just put in a good quality motor oil.
Every time you get the urge to add a can of "snake-oil"... just change out your oil and filter instead. I guarantee thats good for your engine... and probabley cost the same.
Mike