Z Max?

[GT-S Celica]

I just saw the commercial for Z Max. Pretty convincing, even Shelby approved it. Has anybody tried this product?

[larryd]

hehe. dont u love infomercials :)

[QWKsilvr808]

The way I see it, if conventional and synthetic oils do their job well enough already, why chance putting something in your engine that you have to ask questions about? :)

My friend used it in his LS 'Teg, and didn't notice any power or better fuel economy. Hasn't had a problem either tho. I'd just stick to frequent oil changes and save the money. ;)