Gas question
03-25-2015, 12:20 PM
#2
Drifting
All other things being equal I will always chose non-ethanol. But with the octane dif. I don't know....probably still go with non-e just out of general principles. 
03-25-2015, 12:38 PM
#3
Le Mans Master
Member Since: Dec 1999
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1. Probably no 'Seat Of The Pants' difference between 91 and 93
2. Probably no long term consequences of using 91 or 93 octane fuel
3. Probably the savings of using 91 octane won't amount to a hill of beans
So probably, none of it matters. Just do what makes you feel better. (For the record, I use 93).
And I should probably limit my use of the word "probably".
2. Probably no long term consequences of using 91 or 93 octane fuel
3. Probably the savings of using 91 octane won't amount to a hill of beans
So probably, none of it matters. Just do what makes you feel better. (For the record, I use 93).
And I should probably limit my use of the word "probably".
03-25-2015, 12:41 PM
#4
Melting Slicks
Still waiting for my C7 to ship but my other unmodified cars seem to like 91 non ethanol better. Maybe the 93 Ethanol would be better if you get a tuner and to the 93 octane tune.
03-25-2015, 12:45 PM
#5
Race Director
Given a choice, I would generally pick the higher octane. However, if your car is a garage queen, ethanol does absorb water over time and I would thus think the non-ethanol blend would keep longer without the addition of a fuel stabilizer.
03-25-2015, 03:00 PM
#7
Team Owner
1. Probably no 'Seat Of The Pants' difference between 91 and 93
2. Probably no long term consequences of using 91 or 93 octane fuel
3. Probably the savings of using 91 octane won't amount to a hill of beans
So probably, none of it matters. Just do what makes you feel better. (For the record, I use 93).
And I should probably limit my use of the word "probably".
2. Probably no long term consequences of using 91 or 93 octane fuel
3. Probably the savings of using 91 octane won't amount to a hill of beans
So probably, none of it matters. Just do what makes you feel better. (For the record, I use 93).
And I should probably limit my use of the word "probably".
03-25-2015, 03:20 PM
#8
Today's engines are designed to operate with ethanol based fuels.
By design, I mean all seals, gaskets, hoses or other rubber or plastics that the fuel comes in contact with are ethanol compatible.
Older engines may not be so lucky.
Ethanol will cause non-compatible rubber and plastics to swell, craze or crack. So it is important when replacing these components to make sure they are compatible with ethanol.
Ethanol burns cleaner and is more EPA friendly. Ethanol replaced MTBE which was a carcinagen.
By design, I mean all seals, gaskets, hoses or other rubber or plastics that the fuel comes in contact with are ethanol compatible.
Older engines may not be so lucky.
Ethanol will cause non-compatible rubber and plastics to swell, craze or crack. So it is important when replacing these components to make sure they are compatible with ethanol.
Ethanol burns cleaner and is more EPA friendly. Ethanol replaced MTBE which was a carcinagen.
03-25-2015, 03:52 PM
#9
Le Mans Master
Today's engines are designed to operate with ethanol based fuels.
By design, I mean all seals, gaskets, hoses or other rubber or plastics that the fuel comes in contact with are ethanol compatible.
Older engines may not be so lucky.
Ethanol will cause non-compatible rubber and plastics to swell, craze or crack. So it is important when replacing these components to make sure they are compatible with ethanol.
Ethanol burns cleaner and is more EPA friendly. Ethanol replaced MTBE which was a carcinagen.
By design, I mean all seals, gaskets, hoses or other rubber or plastics that the fuel comes in contact with are ethanol compatible.
Older engines may not be so lucky.
Ethanol will cause non-compatible rubber and plastics to swell, craze or crack. So it is important when replacing these components to make sure they are compatible with ethanol.
Ethanol burns cleaner and is more EPA friendly. Ethanol replaced MTBE which was a carcinagen.
03-25-2015, 04:08 PM
#10
Instructor
Today's engines are designed to operate with ethanol based fuels.
By design, I mean all seals, gaskets, hoses or other rubber or plastics that the fuel comes in contact with are ethanol compatible.
Older engines may not be so lucky.
Ethanol will cause non-compatible rubber and plastics to swell, craze or crack. So it is important when replacing these components to make sure they are compatible with ethanol.
Ethanol burns cleaner and is more EPA friendly. Ethanol replaced MTBE which was a carcinagen.
By design, I mean all seals, gaskets, hoses or other rubber or plastics that the fuel comes in contact with are ethanol compatible.
Older engines may not be so lucky.
Ethanol will cause non-compatible rubber and plastics to swell, craze or crack. So it is important when replacing these components to make sure they are compatible with ethanol.
Ethanol burns cleaner and is more EPA friendly. Ethanol replaced MTBE which was a carcinagen.
03-26-2015, 11:34 AM
#11
Drifting
Thread Starter
03-26-2015, 12:12 PM
#12
Drifting
Today's engines are designed to operate with ethanol based fuels.
By design, I mean all seals, gaskets, hoses or other rubber or plastics that the fuel comes in contact with are ethanol compatible.
Older engines may not be so lucky.
Ethanol will cause non-compatible rubber and plastics to swell, craze or crack. So it is important when replacing these components to make sure they are compatible with ethanol.
Ethanol burns cleaner and is more EPA friendly. Ethanol replaced MTBE which was a carcinagen.
By design, I mean all seals, gaskets, hoses or other rubber or plastics that the fuel comes in contact with are ethanol compatible.
Older engines may not be so lucky.
Ethanol will cause non-compatible rubber and plastics to swell, craze or crack. So it is important when replacing these components to make sure they are compatible with ethanol.
Ethanol burns cleaner and is more EPA friendly. Ethanol replaced MTBE which was a carcinagen.
03-26-2015, 12:15 PM
#13
Race Director
Member Since: Sep 2013
Location: Ft Lauderdale
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Tech Contributor
I can get non-eth too but it's more expensive than 93 ethanol. So 93 eth it is. In a closed system like in a car, eth is fine to burn unless you are looking for 1/10's of diff in seconds at the drags.
DD here, don't care that much to use Eth....
DD here, don't care that much to use Eth....
