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On 14 Oct 98, at 14:17, Gurrola_J wrote: > before you start to open up your wallet, try using 92 RON gas. If you > read the inside of your gas door you will see that your engine requires 91 > RON gas. You problem is that you want to use cheap gas. Also, readjust > everything back to where it was before you thought you had a problem. The > lower octane gas is also why you feel no power alonmg with having retarded > the timing. The octane requirements varied with the year, so each of us needs to check his/her own gas filler door. As long as you have no ping or knock, there is no power advantage to using higher octane. I THINK that if your engine is pinging on low octane fuel then it is also putting out less power, but I'm not so sure about this. The REAL problem is the very real physical damage that the detonation can do to your engine. Jim - ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA *******************************