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Discussion Starter #1
What's the highest octane I can run safely in a basically stock 2003 gt
 

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Anyone?
 

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1lowGT said:
What's the highest octane I can run safely in a basically stock 2003 gt
You can run all the way up to race fuel!.. But on a stock motor it's not going to do you any good!.. Won't hurt it any either!..
 

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Hell ill try it then. What if I run the car all most of of gas and put about $10 of 94 octane in it then 101 octane boost. Is that still okay?
 

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it'll probably run the same as 93 octane, but you'll have a lower chance of blowing up your engine, if you're running FI
 
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