octane
03-28-2006, 04:06 PM
#11
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Originally Posted by sqela
Originally Posted by wjcollier07
so the basic answer to this post is ....
YES for */C
NO for N/A stick to 87-89 octane
YES for */C
NO for N/A stick to 87-89 octane
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03-28-2006, 04:11 PM
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Originally Posted by wjcollier07
Originally Posted by MOS95B
I seem to get less gas mileage with higher octane
03-28-2006, 04:16 PM
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Originally Posted by wjcollier07
Originally Posted by MOS95B
I seem to get less gas mileage with higher octane
03-28-2006, 05:33 PM
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Originally Posted by jr's3800
Originally Posted by sqela
Originally Posted by wjcollier07
so the basic answer to this post is ....
YES for */C
NO for N/A stick to 87-89 octane
YES for */C
NO for N/A stick to 87-89 octane
03-28-2006, 06:21 PM
#15
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CVPI?
The owners manual specs 91 Octane for all L67 powered cars... We have heard cases where people have run 89 and or 87 in a pinch, but do not reccomend this for any longer then absolutely necessary
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The owners manual specs 91 Octane for all L67 powered cars... We have heard cases where people have run 89 and or 87 in a pinch, but do not reccomend this for any longer then absolutely necessary
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03-28-2006, 06:34 PM
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Originally Posted by jr's3800
CVPI?
The owners manual specs 91 Octane for all L67 powered cars... We have heard cases where people have run 89 and or 87 in a pinch, but do not reccomend this for any longer then absolutely necessary
The owners manual specs 91 Octane for all L67 powered cars... We have heard cases where people have run 89 and or 87 in a pinch, but do not reccomend this for any longer then absolutely necessary
03-28-2006, 11:38 PM
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I'm addicted to high Octane.
I add boosters to 94 Octane.
It makes a big difference because I have the timing bumped in my NA cars and of course the Bonne has timing + Boost.
In my TA, it makes the difference between a firm 2 - 3 shift to a screech on the 2 - 3 shift at 90 mph.
I add boosters to 94 Octane.
It makes a big difference because I have the timing bumped in my NA cars and of course the Bonne has timing + Boost.
In my TA, it makes the difference between a firm 2 - 3 shift to a screech on the 2 - 3 shift at 90 mph.
03-28-2006, 11:47 PM
#18
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Higher octane requires more input energy to ignite than lower octane. Higher octane has less internal energy than lower. It'* the advanced timing and pressure you can run that increases power, and it more than offsets the lesser energy. But if your car is not tuned to run higher octane and cannot adapt, it is often fruitless, even slightly detrimental to mileage. It'* been said that premium will have better cleaning agents in it, however.
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