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Discussion Starter · #1 ·
I've got my SCT x3 and want to flash the computer. I've been running 87 for a while, and let the tank run pretty low this time, but its always hard to tell just howmuch is left. I just topped off the tank with 12.31 gallons of 91 octane gas. Do you think this would this be enough to safely tune the car to run the 91?
 

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1965 Mustang coupe
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You should be fine. I just wouldn't really romp on it until the 2nd tank. Do you have 93 where you are? You could top it off with a few gallons on 93 and you'd be set.
 

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Discussion Starter · #3 ·
I've been searching around town, but can't seem to find 93. The highest ive found is 92 at some BP station, that doesn't get much business.
 
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