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If enough of it is used, it can degrade your O2 sensor and catalytic, but the tiny ammounts in street legal octane boosters aren't going to harm anything for a one-time use, even four bottles worth. It you were using something like Torco Unleaded Race Gas Concentrate, which has fairly high...

Just to focus this discussion a bit more and steer it in a slightly different direction... Assuming that Mobil 1, AMSoil, Redline, and Royal Purple will all hold up to the 6,000 mile OCI I plan on sticking to, which of those oils, in thier 10W-30 street grades, is likely to reduce friction the...

Bueller, Bueller.... Just a bump to the top.

Ok, I've been using K&N HP-1001 oil filters on my GTP since it got it's first oil change at 500 miles. For the last change, I followed the advice of a number of the guys on the Club GP forum and went with the longer HP-2001 filter for the added filter surface area and corresponding...

I agree with you completely. What I didn't really clarify is that, should something fail in the motor or transaxle, it would not be hard for GM to say that running the engine with higher than stock boost, with higher ratio rocker arms placing more stress on the valve train, and shifting harder...

Yipe! That would be expensive. Have you priced S&B Powerstacks lately? About $70 most places. I do change the K&N oil filter every change though. I also realize that, at 6000 miles, my oil is still probably pretty good and that I could go longer; but, like I said, I like the "warm fuzzy" of...

Realistically, the GM 3.8 is a **** near bulletproof motor that is easy on oil would probably go 200,000+ on a good group III "synthetic" oil. However, considering that it's an SC'd motor that will likely be pushing around twice the factory HP by next year, I like the warm fuzzy of having the...

EEEK! Fake synthetic! Get it away! After hearing that, my baby's hinding in the garage under her car cover like a kid who doesn't want to take some nasty tasting medicine. Don't scare her like that! Now it'll take me an hour of telling her "It's ok, Daddy would never feed you hydrocracked dino...

Might I ask; why can't a person edit their own posts? I can see not allowing you to edit others' posts, but why not your own? Over on the Club GP board, I frequently edit my posts to correct for typos and spelling errors; otherwise I'd look like a complete idiot, rather that just a part-time...

Ranger, you've got to get your dad to understand that M1 absolutely cannot and will not give your dealer any cause to void your warranty. Any API cartified 10W-30 oil is ok. Remind him that M1 5W-30 is the factory fill for the Corvette and that most GM dealers carry M1 5&10W-30 and will upgrade...

What exactly would going to a thicker 40 Wt oil do for me? Wouldn't that actually reduce power?

Ok, a little background on my car. I have a 2001 Pontiac Grand Prix GTP with the supercharged 3.8L engine. The car has an intermediate level of engine, exhaust, and PCM modifications and is used mainly as a pleasure vehicle. It comes out when I want a nice vehicle for a date, to play on the...