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1hot5.0 · 08-11-2002, 12:23 AM

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?

08-11-2002, 12:23 AM	#1
1hot5.0 Registered Member Join Date: Mar 2002 Location: Arizona Posts: 172	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? __________________ 91 Mustang LX 5.0 Convertible AOD Mdifications: K&N filter, Mac Catback, BBK aluminum u/d pulleys.