Ethanol - Gas mix
#1
Junior Member
Thread Starter
Join Date: Feb 2006
Location: Colorado Springs, CO
Posts: 46
Likes: 0
Received 0 Likes
on
0 Posts
Ethanol - Gas mix
Ijust recently moved to Colorado and can not find straight 100% gasoline, all of the fuel around here is mixed with enthanol. I remember back when I bought my 7, it came with the recommendation to avoid ethanol. After several months of using the stuff, my 7 is extremely low on power. Willl the fuel have caused this or is the problem elsewhere?
Does anyone else have a problem with ethanol and how do you get around it?
Does anyone else have a problem with ethanol and how do you get around it?
#2
GOT WANKEL?
Around here, most of the gas has some ethanol in it. My 7 loved 10% ethanol mix. I wouldn't suspect that the ethanol is the cause of your problems. It could, however, expedite the "cleaning" of your fuel lines, so a fuel filter change would be a good place to start.
#3
I hate drum brakes
Join Date: Oct 2006
Location: West Palm Beach, Florida
Posts: 638
Likes: 0
Received 0 Likes
on
0 Posts
I hate the stuff, I was getting 24 miles to a gallon on 100% gasoline but on E10 I'm down to 17. I also noticed a huge power difference. On straight gasoline I'd set the timing by advancing it in increments until I heard it barely ping, then I'd back it off a degree or so which would usually put me at ~10 degrees more advanced than what the stock timing marks said to to (If I remember correctly). I can't use this method anymore because the car refuses to ping. I ended up at 20 degrees before I finally decided to quit before I broke something and left it a little north of my special advanced mark that I had made on my front pulley. I did get some power back but the mileage is still crap. I'll inevitably fix all of that with Megasquirt whenever I'm ready.
#5
Senior Member
iTrader: (6)
Join Date: Jul 2005
Location: Orlando, FL
Posts: 565
Likes: 0
Received 0 Likes
on
0 Posts
I hate the stuff, I was getting 24 miles to a gallon on 100% gasoline but on E10 I'm down to 17. I also noticed a huge power difference. On straight gasoline I'd set the timing by advancing it in increments until I heard it barely ping, then I'd back it off a degree or so which would usually put me at ~10 degrees more advanced than what the stock timing marks said to to (If I remember correctly). I can't use this method anymore because the car refuses to ping. I ended up at 20 degrees before I finally decided to quit before I broke something and left it a little north of my special advanced mark that I had made on my front pulley. I did get some power back but the mileage is still crap. I'll inevitably fix all of that with Megasquirt whenever I'm ready.
To top it off, the price of corn has gone though the roof. Used to get 10 ears for a $1 - now it's a $1.20 for one frigin' ear!
#7
I can has a Hemi? Yes...
iTrader: (2)
E85 (85% ethanol / 15% Gas) has an octane rating of about 105.
Normally aspirated Rotaries like a LOW octane rating.
This is why the Original Poster has issues with any ethanol being mixed in with
regular gasoline.
E85 will have lower fuel economy than straight gasoline. Between 20-30% lower miles per gallon.
10% ethanol in regular fuel will not affect your stock fuel lines. It's doubtful that even E85 has any effect on stock fuel lines as well.
However, on Turbocharged cars, e85 is even better than race fuel.
Besides the very high octane rating of the gas, the cooling properties of this fuel are almost like methanol.
You dont even need an intercooler! It really makes detonation extremely difficult to do - especially at street power levels.
I personally have been waiting to see what someone with a draw-through turbo system (cheap/easy to install) could see in huge power gains with E85.
Normally aspirated Rotaries like a LOW octane rating.
This is why the Original Poster has issues with any ethanol being mixed in with
regular gasoline.
E85 will have lower fuel economy than straight gasoline. Between 20-30% lower miles per gallon.
10% ethanol in regular fuel will not affect your stock fuel lines. It's doubtful that even E85 has any effect on stock fuel lines as well.
However, on Turbocharged cars, e85 is even better than race fuel.
Besides the very high octane rating of the gas, the cooling properties of this fuel are almost like methanol.
You dont even need an intercooler! It really makes detonation extremely difficult to do - especially at street power levels.
I personally have been waiting to see what someone with a draw-through turbo system (cheap/easy to install) could see in huge power gains with E85.
Trending Topics
#8
Senior Member
iTrader: (6)
Join Date: Jul 2005
Location: Orlando, FL
Posts: 565
Likes: 0
Received 0 Likes
on
0 Posts
Tell that to all the new car manufacturers that are quietly recalling their original aluminum fuel lines. I've had 2 cars from different manufactures replace fuel lines because of the ethanol as a "preventative" (yea right!) measure.
Boat owners are having a nightmare because of it as well. Check out some of the boating fourms. I live in Florida, so boating is a rather big deal, but boaters are going to great lengths to buy non- ethanol fuel. Marinas even advertise it now. They, too, are seeing noticable power loss and lower fuel economy with E10....not to mention pitting of the fuel cells, clogged fuel filters and injectors, etc.. Not to mention the separation if the gas sits too long.
Man this ethanol is an absoulte nightmare. Hopefully in a few years, all cars will be built with ethanol in mind and this will be a moot point. But if you are stuck with a pre-2008 model vehicle - expect some long term problems....This may be great for those running boost, but us N/A guys will be crying our way to the bank to replace part after part a few years down the line.
Somewhere ...someone is making a ton of money at our expense. Watering down gas with ethanol and charging the same ammount of $$. Gotta love capatilism!
Boat owners are having a nightmare because of it as well. Check out some of the boating fourms. I live in Florida, so boating is a rather big deal, but boaters are going to great lengths to buy non- ethanol fuel. Marinas even advertise it now. They, too, are seeing noticable power loss and lower fuel economy with E10....not to mention pitting of the fuel cells, clogged fuel filters and injectors, etc.. Not to mention the separation if the gas sits too long.
Man this ethanol is an absoulte nightmare. Hopefully in a few years, all cars will be built with ethanol in mind and this will be a moot point. But if you are stuck with a pre-2008 model vehicle - expect some long term problems....This may be great for those running boost, but us N/A guys will be crying our way to the bank to replace part after part a few years down the line.
Somewhere ...someone is making a ton of money at our expense. Watering down gas with ethanol and charging the same ammount of $$. Gotta love capatilism!
#10
Old Fart Young at Heart
iTrader: (6)
This is the same kind of crap I heard in the early 70s when ethanol came out. Ethanol, at least here, has a 2 point higher octane rating then regular gas. When I had my 71 Road Runner, a tank of ethanol would clean out the carb and combustion chambers, extending plug life along with a noticeable power increase. On leaded fuel, plugs lasted about 1500 miles before performance dropped off.
Fuel systems have long been designed to handle ethanol. If there is a problem, it's most likely with moisture because ethanol is hydroscopic, it attracts/absorbs water. Why do you think HEET works so well in the winter? In nearly 40 years, I've never once had an issue with the 10% blended fuels.
Fuel systems have long been designed to handle ethanol. If there is a problem, it's most likely with moisture because ethanol is hydroscopic, it attracts/absorbs water. Why do you think HEET works so well in the winter? In nearly 40 years, I've never once had an issue with the 10% blended fuels.
#11
G0D OF DEATH
iTrader: (9)
Join Date: May 2006
Location: Illinois
Posts: 1,051
Likes: 0
Received 0 Likes
on
0 Posts
This is the same kind of crap I heard in the early 70s when ethanol came out. Ethanol, at least here, has a 2 point higher octane rating then regular gas. When I had my 71 Road Runner, a tank of ethanol would clean out the carb and combustion chambers, extending plug life along with a noticeable power increase. On leaded fuel, plugs lasted about 1500 miles before performance dropped off.
Fuel systems have long been designed to handle ethanol. If there is a problem, it's most likely with moisture because ethanol is hydroscopic, it attracts/absorbs water. Why do you think HEET works so well in the winter? In nearly 40 years, I've never once had an issue with the 10% blended fuels.
Fuel systems have long been designed to handle ethanol. If there is a problem, it's most likely with moisture because ethanol is hydroscopic, it attracts/absorbs water. Why do you think HEET works so well in the winter? In nearly 40 years, I've never once had an issue with the 10% blended fuels.
#12
I need a new user title
Join Date: Oct 2005
Location: Yaizu, Japan
Posts: 2,646
Likes: 0
Received 0 Likes
on
0 Posts
However, on Turbocharged cars, e85 is even better than race fuel.
Besides the very high octane rating of the gas, the cooling properties of this fuel are almost like methanol.
You dont even need an intercooler! It really makes detonation extremely difficult to do - especially at street power levels.
Besides the very high octane rating of the gas, the cooling properties of this fuel are almost like methanol.
You dont even need an intercooler! It really makes detonation extremely difficult to do - especially at street power levels.
#13
Moderator
iTrader: (3)
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,841
Received 2,605 Likes
on
1,848 Posts
its been something like 15 years? i haven't noticed any problems. regular gas will get better mileage, but that's about it
#17
Tucson Rotary
iTrader: (1)
Join Date: Nov 2003
Location: Tucson
Posts: 228
Likes: 0
Received 0 Likes
on
0 Posts
In AZ we have been using it for years. Not my preferred but have to deal with it. Problem we have is that we use fuel during the summer months and blended during the winter.
Main issue was with the semi-auto choke mode. Cars would run like crap when the choke pulled off until they reached full operating temp. If we set the car to run right for that 10 minutes then we found mileage went down and driveability suffered. So ended up just telling the client the problem and learn to live with that 5/10 minutes.
Main issue was with the semi-auto choke mode. Cars would run like crap when the choke pulled off until they reached full operating temp. If we set the car to run right for that 10 minutes then we found mileage went down and driveability suffered. So ended up just telling the client the problem and learn to live with that 5/10 minutes.
Thread
Thread Starter
Forum
Replies
Last Post