5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

gas

Old 09-03-2006, 02:38 AM
  #1  
alec3369
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Default gas

what gas is everyone running in their stangs? Is it safe to run 87 in a stock 5.0?
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Old 09-03-2006, 02:40 AM
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FullAuto
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Default RE: gas

I run 91. But 87 is safe is most 5.0s.
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Old 09-03-2006, 02:40 AM
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PRO50SC
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Default RE: gas

93 in mine and 89 in my wifes.
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Old 09-03-2006, 02:59 AM
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MEM 302 5.0L
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Default RE: gas

i run 87 in mine...mines stock .......thinking about puttin 91 in it and changing my timing...
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Old 09-03-2006, 03:43 AM
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sbx213
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Default RE: gas

87 for now since its bone stock. I plan on using 93 after my setup.
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Old 09-03-2006, 03:46 AM
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Twotone93stang
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Default RE: gas

I run 87 right now and seem to do fine. My car is basically stock. So maybe thats why it works out.
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Old 09-03-2006, 03:50 AM
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georgiaguy246
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Default RE: gas

i've heard run 93 all the time, but if you want run 87 if its stock. but if you start to mod run 93 it would be for the best!
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Old 09-03-2006, 03:59 AM
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jthorn9
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Default RE: gas

I try to run 93 when it isn't too damn expensive, but if need be I'll run 87, but believe it or not, my car gets nearly 3 mpg better with 93 over 87, I nearly passed out, but when I've done several long trips in the past three weeks and when I used 87 I got around 20-21 mpg doing mostly hwy, then I put in 93 and get 24-25 mpg, it's absolutly rediculous the difference that it makes.
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Old 09-03-2006, 04:28 AM
  #9  
MustangMadness7
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Default RE: gas

I run 93. It cant hurt, and i get better mpg.
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Old 09-03-2006, 04:31 AM
  #10  
ridebmx4140
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Default RE: gas

93 because of timing... and its not my DD so i can afford to
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