developtrust wrote: I went to Cabo san lucas a couple of years ago driving my Mercedes which recommended Premium fuel. I noticed that the best Mexican fuel was our lowest grade. Using it I noticed no pinging or problems whatsoever and have used lowest grade fuel ever since. ---------------- reply -------------------------- If your vehicle is about 1985 or newer, it may have a knock sensor which will automatically retard the timing when it senses knock. It happens so fast you will not hear it. You may notice a slight reduction in power. North American vanagons with 9:1 CR never needed knock sensors. 1985 and newer VW GTIs and 16 valves got it. Basically any VW model with 10:1 CR. Gary Calgary |
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