GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion
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Fuel grades in your truck

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Old Nov 26, 2006 | 01:32 AM
  #31  
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Originally Posted by cstchevy
87 becaqsue I am lonely and don't have a tune or a blower(so no reason to run better)
When I first bought my truck I ran 87 for a while and then switch to 91, I got better gas mileage with the 91 and it made up for the extra cost and a little bit more. Than I put the SC on and now I have to run 91
Mark
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Old Nov 26, 2006 | 01:34 AM
  #32  
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Originally Posted by sk8rshorty
i like bluecajuns truck but im partial to red
welcome to 2006
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Old Nov 26, 2006 | 02:28 AM
  #33  
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hot spot brand 89 for me... But im stock
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Old Nov 26, 2006 | 06:37 AM
  #34  
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91 for me, But if I could afford the 6.50 a gallon price of race gas............
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Old Nov 26, 2006 | 11:07 AM
  #35  
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111 octane leaded racing gas mixed with 91 octane pump gas..28 degrees timing with a 150 shot of nitrous..no o2's so might as well as run racing gas
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Old Nov 26, 2006 | 11:57 AM
  #36  
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WTF??? 2 years old thread and a poll that makes no sense?
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Old Nov 26, 2006 | 12:44 PM
  #37  
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I use the BlueCajun5.3 octane grade fuel.
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Old Nov 26, 2006 | 12:51 PM
  #38  
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Originally Posted by thunder550
WTF??? 2 years old thread and a poll that makes no sense?

may of 2004, I had my license for like 3 months then lol.

i use blucajun5.3 high octane 93 from chevron/valero. all the other gas stations around here suck
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Old Nov 26, 2006 | 03:26 PM
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Old Nov 26, 2006 | 04:54 PM
  #40  
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2005 GMC sierra 5.3l Flex Fuel engine. I run 89 oct or E85 ethinal = to 105 octane I can tell a diffrance in power.
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