Changing to a higher octane, good or bad?
04-03-2004, 11:20 PM
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Car: 1992 RS Camaro
Engine: 305 TBI
Transmission: 700R4
Changing to a higher octane, good or bad?
I just bought my first Camaro and im pretty excited about it. It's a 92 RS with a 305. The car only has 46000 miles on it and i am the second owner. I dont know what kind of gas the first owner used but i was wondering if it would be a bad idea to use 91 octane. Ive heard horror stories about the bad things high octane could do to the engine if the engine is used to 87. But on the other hand ive heard that it wouldn't hurt at all. Just wondering if you guys could clear things up a bit.
Thanks!
Thanks!
04-04-2004, 06:21 PM
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
You should be able to get away with 87 without a problem. When you start adding base timing would be when you need to go a bit higher. I run 4* advanced and need at least 89.
04-05-2004, 09:03 AM
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Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Re: Changing to a higher octane, good or bad?
Originally posted by KahliFornyaKing
i was wondering if it would be a bad idea to use 91 octane.
i was wondering if it would be a bad idea to use 91 octane.
octane is a measure of how resistant it is to abnormal combustion.. not a measure of power potental.
Originally posted by KahliFornyaKing
Ive heard horror stories about the bad things high octane could do to the engine if the engine is used to 87.
Ive heard horror stories about the bad things high octane could do to the engine if the engine is used to 87.
just dont use race gas or leaded gas.. they will mess with your O2 sensor. (and wont give you more power anyway..)
04-05-2004, 04:56 PM
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Car: 91 Z28
Engine: L98
Transmission: built 700R4
Axle/Gears: 3.42
yeah is your check your owners manual it says use 87 for the L03 but it says use a higher octane if you have an L98
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04-05-2004, 05:35 PM
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Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by camaro05
yeah is your check your owners manual it says use 87 for the L03 but it says use a higher octane if you have an L98
yeah is your check your owners manual it says use 87 for the L03 but it says use a higher octane if you have an L98
04-05-2004, 09:21 PM
#9
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Originally posted by camaro05
yeah is your check your owners manual it says use 87 for the L03 but it says use a higher octane if you have an L98
yeah is your check your owners manual it says use 87 for the L03 but it says use a higher octane if you have an L98
04-07-2004, 11:57 PM
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Car: 1992 RS Camaro
Engine: 305 TBI
Transmission: 700R4
Thanks guys your advice really hepled a lot; just one more thing. Would switching to a higher octane help my gas mileage any?
04-08-2004, 08:19 AM
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Car: 96 Silverado/99 Suburban
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Hmm...on that one I've got mixed emotions. I know with MY car, I've ONLY run 91 octane in it since I got it. Had her for almost 2 years now. About 3 months ago, Arizona had a gas "shortage" ( 
) and Chevron ran out of 91 and 89. Seeing as I ran out of gas pulling into the station I had no choice but to use 87, and on that tank my milege dropped 5.5mpg. Wasn't too happy about that...
Bruce (90RS305)
) and Chevron ran out of 91 and 89. Seeing as I ran out of gas pulling into the station I had no choice but to use 87, and on that tank my milege dropped 5.5mpg. Wasn't too happy about that...Bruce (90RS305)
04-08-2004, 08:19 AM
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Car: 96 Silverado/99 Suburban
Engine: 700 cubic inches of 'Muican Awesome
Transmission: 4L80/4L60
Axle/Gears: Chunky/Clunky
Originally posted by ShiftyCapone
I can see that I am gonna half to add this to the sticky.
I can see that I am gonna half to add this to the sticky.
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