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Tahoe SC -> RE: GAS Question (6/24/2008 1:20:51 PM)
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use whatever is recommended by your manual. if it pings, then bump it up to the next level. 97 f3 stock calls for regular, but engine age (amount of build up), gas quality, etc. all play a role as well. simply using whatever gives you piece of mind is great, but there''s no science behind that, which is bad.
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