justinmy300z

ok, I am full of questions, but they are relevant, so help me if you can. The dealer (a friend of the family) that i got my Z from, said that he put a pint of this STP oil treatment stuff in to help. This stp is like HONEY! I have heard it is ok, and also heard it is horrible! should i flush the system asap or not worry about it? ok, thanks

CanyonCarver

I use it in my motors after they have a coupla hundred-thousand miles on them. I have never had any stp related failures. For all I know, it has helped my motors last well into 300k mile range.

91zxtt

It's one of those debates that may go on foreveer. I've used some oil treatments and fuel treatments in my Z and never had any problems.