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Old 08-11-2002, 12:23 AM   #1
1hot5.0
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Join Date: Mar 2002
Location: Arizona
Posts: 172
Default What octane fuel is best for my car?

I have a BONE STOCK 91 lx 5.0 vert and I went to fill up today. I decided to put in 91 octane rather than 87 and I noticed an immediate difference. The car started easier, idled smoother, and the throttle was more responsive. What do you guys run in your stangs?
Also a gas related question. When I fill my tank up, my gas gauge needle goes above full. Being nervous about running out of gas, I have been filling up at a quarter of a tank. Is this a normal thing for the gas gauge to do, and is it still accurate?
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91 Mustang LX 5.0 Convertible AOD
Mdifications: K&N filter, Mac Catback, BBK aluminum u/d pulleys.
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