Does premium gas really make a difference? - Mustang Evolution

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Old 11-18-2012, 06:41 PM   #1
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Does premium gas really make a difference?

I'm a broke 17 year old with a 1987 gt. Should I really be spending the extra to get premium? It is totally stock and isn't raced.
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Old 11-18-2012, 06:45 PM   #2
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I wouldn't spend the money. No need for It unless you are modded and tuned for it. Just make sure you are getting gas from quality places. Gas from Bob's discount filling station is usually a bad idea. Stick to places like Chevron, Shell and BP etc.
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Old 11-24-2012, 01:39 PM   #3
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The only change premium gas makes in a vehicle tuned for regular is it decreases your wallet's fuel mileage. I get a little chuckle when I see cars for sale and people advertise "ONLY USED PREMIUM FUEL!!!"
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Old 11-24-2012, 01:41 PM   #4
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With a tune there is a difference. No clue w/o a tune
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Old 11-24-2012, 01:43 PM   #5
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With a push rod motor a tune is not a huge deal as you can crank up the timing the old fashioned way with the dizzy to 14* and wake that beast up with some 93
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Old 11-24-2012, 02:00 PM   #6
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Quote:
Originally Posted by BenGT07 View Post
I wouldn't spend the money. No need for It unless you are modded and tuned for it. Just make sure you are getting gas from quality places. Gas from Bob's discount filling station is usually a bad idea. Stick to places like Chevron, Shell and BP etc.
Quote:
Originally Posted by deadsp0t View Post
With a push rod motor a tune is not a huge deal as you can crank up the timing the old fashioned way with the dizzy to 14* and wake that beast up with some 93
^This is what suggest.

It may not increase horsepower, etc. but using good gas with the cleaners, etc. will help keep your fuel system in top shape. Have higher octane gas also will lessen the likelihood of knock/ping when you advance the timing.
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Old 11-26-2012, 04:34 PM   #7
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If you have a high compression car then typically you are required to run premium in order to avoid detonation. Octane has to deal with how much the fuel can be compressed be for it detonates. Your dash should tell you if you need it, usually it says "use premium unleaded fuel only" if that's the case. If your engine has been modded, ie forced induction, block work or aggressive tune may require you to use it. If you don't need to run premium I don't see the point in why you would.
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Old 11-26-2012, 10:24 PM   #8
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Quote:
Originally Posted by Rosco
If you have a high compression car then typically you are required to run premium in order to avoid detonation. Octane has to deal with how much the fuel can be compressed be for it detonates. Your dash should tell you if you need it, usually it says "use premium unleaded fuel only" if that's the case. If your engine has been modded, ie forced induction, block work or aggressive tune may require you to use it. If you don't need to run premium I don't see the point in why you would.
Yeah mine is bone stock and say to use unleaded fuel only. Nothing about premium.
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