E85 fuel in the 2011 6.2L
#16
03-20-2011, 12:41 AM
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#17
09-07-2013, 06:26 PM
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Reviving this tread after I used the search.
Seems like the only upside to E85 would be price and even then only if it's at least 10% cheaper. Saw my first station with ethanol blend this afternoon and nowhere did it say what percentage so I skipped and filled with regular 87 octane. Also the price was the same so I chose right.
According to the station's website(Esso Canada) they use up to 10% blend but with price at par I'm not going to be filling up with that.
Seems like the only upside to E85 would be price and even then only if it's at least 10% cheaper. Saw my first station with ethanol blend this afternoon and nowhere did it say what percentage so I skipped and filled with regular 87 octane. Also the price was the same so I chose right.
According to the station's website(Esso Canada) they use up to 10% blend but with price at par I'm not going to be filling up with that.
#18
09-09-2013, 08:08 AM
The upside is the price.....some places it is $.75 cheaper or better than regular 87ct. Also the fact that it is 104oct does help and increase performance.
I ran some in my truck a few weeks ago and noticed better off throttle response and stronger mid range power. I switched back because I am going out of town tomorrow and I doubt I can find E-85 on the road when I need to fuel up.
E-85 takes roughly 33% more energy to equal the power of regular fuel however you also have to take into account that most all today's fuel already have 10% alcohol by volume mixed in.
The performance gains are there and they do work! I mix E-85 in both my cars for the octane. In my '87 Buick Grand National I run roughly 30% mixture of E-85 ( Due to the 33% energy factor) and 93 oct. This gives me the needed octane to run more boost and more timing and it proves itself at the track. I can also see the result in my data logs of my passes due to no knock retard when running the amount of boost and timing.
I also will mix 30% in my Corvette.....now this is old school small block 12:.1 pistons so I really need the octane. Also its kinda dumb because there is no O2 sensor and nothing to adjust timing when kr is present. This is much different than the newer vehicles with lots of compression.....I read the earlier post about someones camero with 11:.1 That is really apples and oranges. Newer vehicles do have lots of compression.....but it is managed by the computer making huge timing adjustments and a lot of other things to be able to run on 87. Its not like older 60's-70's high compression engines that are dumb and have no engine management system.
I see improved performance in both but you have to watch your mixture....too much E-85 in a non flex vehicle and it will run lean.
Anyway the point I was making with all that rambling is that there is true proven performance gains with this stuff. Yes its hurts your mpg's but it does help the engine with more power.
I ran some in my truck a few weeks ago and noticed better off throttle response and stronger mid range power. I switched back because I am going out of town tomorrow and I doubt I can find E-85 on the road when I need to fuel up.
E-85 takes roughly 33% more energy to equal the power of regular fuel however you also have to take into account that most all today's fuel already have 10% alcohol by volume mixed in.
The performance gains are there and they do work! I mix E-85 in both my cars for the octane. In my '87 Buick Grand National I run roughly 30% mixture of E-85 ( Due to the 33% energy factor) and 93 oct. This gives me the needed octane to run more boost and more timing and it proves itself at the track. I can also see the result in my data logs of my passes due to no knock retard when running the amount of boost and timing.
I also will mix 30% in my Corvette.....now this is old school small block 12:.1 pistons so I really need the octane. Also its kinda dumb because there is no O2 sensor and nothing to adjust timing when kr is present. This is much different than the newer vehicles with lots of compression.....I read the earlier post about someones camero with 11:.1 That is really apples and oranges. Newer vehicles do have lots of compression.....but it is managed by the computer making huge timing adjustments and a lot of other things to be able to run on 87. Its not like older 60's-70's high compression engines that are dumb and have no engine management system.
I see improved performance in both but you have to watch your mixture....too much E-85 in a non flex vehicle and it will run lean.
Anyway the point I was making with all that rambling is that there is true proven performance gains with this stuff. Yes its hurts your mpg's but it does help the engine with more power.
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