1988 porshe 911
I have a 1988 porsche with non-ethanol gas in it. What, if anything, do I need to do to prevent any damage when I have to use the newer mixed fuel?
You can use up to 10% ethanol in most any vehicle, you won't want to go higher than that. You may change to a hotter spark plug or adjust your timing a bit if you notice a pinging/preignition/spark knock.
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