E85 in any car is a big no no unless its tuned for it.
Oops "Senior Moment"
Le Mans Master
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From: Manassas VA
Le Mans Master
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The OP's is likely not
Melting Slicks
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Le Mans Master
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From: Manassas VA
Not sure where you are going with this. I never said that the OP or you should try it. I only made the comment due to a previous post by Greggpenn stating that the ethanol raises octane. As a matter of fact go back a little further and I said that the octane of 87 would be fine in a 85 car.
Le Mans Master
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From: Manassas VA
You really need to check your facts. 1. most all gas is now 10 percent "E" 2. the tank in a c4 is lined. 3. Go down to your local drag strip and tell the guys how alchol makes a motor run hot!!
Le Mans Master
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Because of ethanol, some 87 is 89 too. Someone posted a chart (last year?) that showed measured ratings for many brands. The results were interesting. IIRC, most levels were at or above minimums. Not lower, as suggested above.
Again, a by-product (advantage) of ethanol.
Again, a by-product (advantage) of ethanol.
Race Director
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From: Anaheim CA
This is totally wrong. I have been in the control room at the Chevron refinery in Torrance, California when they were blending gasoline. The senior guy is the only one who does it. They have guys out in the tank farm with radios at the manual valves in case anything goes wrong with the computer-controlled valves. The guy on the computer is in constant radio contact with the guys in the tank farm so they know exactly what is happening. It's a VERY intense process and NOBODY talks while they are blending.
Le Mans Master
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From: Manassas VA
[QUOTE=Cruisinfanatic;1583928405]Hello, go back and read post 21[/QUOTE]
How do we know you have a specially tuned car unless we read all of your posts?[/QUOTE]
No need to go back and read my post. Just read the comments in the post you are adding to. Again number 21
How do we know you have a specially tuned car unless we read all of your posts?[/QUOTE]
No need to go back and read my post. Just read the comments in the post you are adding to. Again number 21
Last edited by 93 ragtop; May 18, 2013 at 05:54 AM.
Le Mans Master
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From: Manassas VA
Cliff, I have no idea why you can only get 91 octane in Cal. But its true the ethanol raises the octane. That is why E85 in my area is 104. Premium gas is 92-93
I was told that E98 is actually 110 octane.
Drifting
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From: Cohasset MN
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Where I live I can get 89 octane with no ethanol. I tried some 87 octane with 10% ethanol in my '86 Coupe and I could notice a slight difference. No knocks, but slightly less performance and slightly lower MPG. I'll stay with the premium.
Le Mans Master
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From: Manassas VA
Absolutely stay away if you are not tuned for it and or pure gas is available. You need approximately 30 percent more e85 then pure gas, so at best mileage will decrease 30 or so percent.
The problem with going pure gas is, in many areas its just not available.
The advantage to E85 is less pollution and its made from corn., that's why its out there. But for me and a lot of others, due to it being 104 octane, and it runs cooler, you can take advantage of this with additional timing in a high compression motor, or additional boost on a blower motor, and again running cooler.
Instructor
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From: Watkins Glen NY
I used to deliver fuel. Yes one tanker, five sections to hold fuels. Next time you go to the gas station look at the different color covers on the tank heads. Must be kidding...
Le Mans Master
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Thread Starter
Racer
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From: Seattle Washington
Question?
Went to gas up my 85 yesterday. Now, my daily driver uses 87 octane so without thinking, I filled the Vette up with 87 octane (usally use 89). Since I don't drive the Vette that much this will take about 3 months to use up. Guess I will just nurse it untill the next fill up.
JW
JW
JW
Le Mans Master
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From: Clifton Park, NY ............Clearwater, FL ... 85 Original Owner