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what will runnin 89 do

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Old 02-08-2009, 09:23 PM
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Default what will runnin 89 do
what will happen if i run 89 octane do any thing will it give it any more power or anything jw
sorry if it sounds dumb lol im jw
 
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Old 02-08-2009, 09:25 PM
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Default RE: what will runnin 89 do
IT COULD EXPLODDDEEEEEEEEEEEEEEEE

















roflwaffles

youll be fine. You might waste some $$ as your engine will run perfectly fine on 87...but..its been discussed on here in pretty good depth. Try searching a few forums for premium fuel..Im sure you can find a few of the threads!
 
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Old 02-08-2009, 09:29 PM
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Default RE: what will runnin 89 do
Yep, the only time that it would result in better power/mileage is if you have some detonation causing hot spots in the combustion chambers that is causing the PCM to cut back on the timing advance when using 87 octane. Otherwise, it will just be more $$$ spent.
 
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Old 02-08-2009, 10:16 PM
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Default RE: what will runnin 89 do
so its not good to run it or what lol what will happen
*COMBINING CONSECUTIVE POSTS*
what kinda place do i have to go to to get my pcm upgraded with out havein to send it out to some place
 
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Old 02-08-2009, 11:00 PM
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Default RE: what will runnin 89 do
Youd have to have a custom preformance shop around you that has experience with GM pcms. Or someone with licenses on HP tuners or something like that..
 
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Old 02-08-2009, 11:29 PM
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Default RE: what will runnin 89 do
okay thanks guys
will it hurt it to run 89 with the stock tune in the pcm
 
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Old 02-08-2009, 11:35 PM
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Default RE: what will runnin 89 do
No.
 
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Old 02-08-2009, 11:37 PM
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Default RE: what will runnin 89 do
okay thank u u guys have beenn a lot of help
 
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Old 02-09-2009, 03:24 AM
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Default RE: what will runnin 89 do
When I run 89 octane on the highway I get about one more mpg. Then again, maybe I am just imagining that. No, you will notnotice any power increase. Just for grins try running a tank of 93 and see if you notice a difference.
 
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Old 02-09-2009, 08:05 AM
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Default RE: what will runnin 89 do
lol i was just askin cause theres a gastation here that 89 ist the cheapest the gastatin is called road ranger lol
 



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