KANWAR said:you know i was sceptical too, but started using it in my fleet of 1/2 ton pickups at work. We used to have them in for unscheduled service for various reasons regarding injectors, valves, etc. Most of my fleet of Ford's and Chev's are over 250k kms, so i started dropping in ZMAX into the older ones. We added to the engine and fuel system. I will be submitting my 2010 budget, and i can honestly say that my overall repair budget in 2010 was 30% less than 2009, and no new vehicles were purchased. We even noticed a slight (8%) average on fuel economy. The oldest truck, a 1999 Chev silverado had 323k kms on it, and still runs fine. Before we put ZMAX in it, it used to 'tick' a lot, which would suggest lifters. That noise hasn't come back, and it also stopped burning oil to boot.
i think at my first oil change on my NOX, i will be adding it. Like some said, it can't hurt, and i have only seen positive side effects at work.
No problem, just picked some Zmax up yesterday, just waiting for my first oil change and will dump it in. I got the oil and fuel treatment set.SuperMat64 said:Thanks for your input, i also think i'm gonna try it. Nothing to loose except a couple of dollars.
nope, not required in the manual, and YES i do remember STP! used to put that stuff in my first car, years ago...GARYD said:Is it required in the manual? I thought I read somewhere about not putting additives in the oil. Can't remember if it was the Terrain manual or one of my other manuals.
Does anyone remember STP? Fantastic commercials....good old Andy G.
Never heard of it before. If I had to make a decision one way or the other, I'd stay away from it.