Bob W.

Here's the problem: with the APR 1 bar chip, I had been experiencing some minor pinging under full-throttle application below 2500 rpm (heard as 2 or 3 'clicks'). The problem seemed to occur mainly when the engine was HOT (oil temp around 220), and the outside temp was 90+ degrees F (I'm in San Antonio, TX).<p>After some experimentation, I found a solution! Add approx. 16oz. of Turbo 108 octane boost (made by North American Oil Co.) to a full tank of 93 octane fuel (I used Mobil premium). The result? ABSOLUTELY NO PINGING! The engine seems to run smoother and pull a bit harder too. I tried a couple other octane boost formulas, but none of them worked as well as Turbo 108 (and, no, I don't work for them or hold stock in their company).<p>Pep Boys sells a 32 oz. can of Turbo 108 for $6.99 (enough for 2 tankfulls).

Todd W

I prefer Chevron, but I've heard that Texaco pings less too. My car runs like crap when I use Mobil, their oil is great but their gas isn't very consistent from my experience.<p>Todd W

Terry D

I've posted often about 108 Octane Booster -- I use it in the summer in Phoenix when it is routinely over 100 degrees to get my Wett 1.0 bar 1.8T running better.

Mike O.

Try a Wetterauer 1.0 - you'll NEVER have pinging problems with 93 octane!

Bob W.

I've tried Texaco, Chevron, Exxon, and Shell...Mobil seems to be best so far.--nt

Bob W.

Hmm..Terry D (below) seems to disagree. Either you live in a milder climate or you don't know what to listen for.--nt

too hot in Tucson

Yeh, just what I thought, all the 1.0 bar chips ping in this gd desert.

JonathanD

Fact is that if you live where it is regularly 95+ degrees, you may get some pinging no matter the brand of chip. There are testimonials both ways for every chip.

Todd W

Upgrade the intercooler

Jetpilot

YOu're problem is probably carbon deposits on you're pistons raising your compression ratio. I live in S Florida and have never had pinging with my chip. I run Techron ful aditive once every 3K miles and have never had detonation.<p>Try 2 bottles consecutively and see if that helps.