5.0 and E85?
Senior User
Joined: Aug 2017
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I was talking about a difference in performance, not price. I even wrote it, quite clearly: If you are going to compare performance to pure gas, make sure you are comparing to premium. If you compare to 87 octane, then yeah, the E85 is going to make more power, since the naturally high octane rating will allow for more timing advance. These trucks have fairly high compression, and you won't make optimum power with anything below 91 oct. 
When I tried it, my mileage was down by around 35%, so it wasn't much of a cost savings, either.
When I tried it, my mileage was down by around 35%, so it wasn't much of a cost savings, either.
Quite clear but not really saying anything. See? I can be a troll too. 😁
Senior User
Joined: Sep 2016
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I have never trolled, here or any other site. But it certainly seems like you are only here to cause trouble. Did you ride the short bus to school?
Senior User
Joined: Aug 2017
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I'm not here to cause trouble but you certainly have a habit of either politicizing things or talking down to anyone who discusses a subject you disagree with. No shortbus here but I did manage to gaduate. I feel it's best if we just don't acknowledge eachother.
Senior User
Joined: Sep 2016
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I was perfectly polite in this thread until you called me a troll. I did not politicize anything, I did not "talk down" to anyone. YOU are the one who is starting *****, not me.
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New User
Joined: Feb 2018
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From: Loudon, TN
I don't think that's accurate. I am going to look into that. If anything the oil will be a whole lot less dirty due to the much cleaner burn of corn fuel. Honestly, I'm sold on running e85, 60 cents less a gallon, better performance, a few less mpg's, I could care a less. I'm in.
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Joined: May 2005
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From: San Antonio, TX
I just looked. Page 549. On these newer trucks all it says under the maintenance section is to run one full tank of gasoline at every oil change, as indicated by the OLM.
It would be interesting to start using E85 on a fresh oil change, with the OLM reset, to see how many miles it takes until it hits 100%. I wonder if it would be adjusted since the sensors are reading different O2 levels and the rate of fuel delivery is increased.
http://cdn.dealereprocess.com/cdn/se.../2017-f150.pdf
My last truck's owner's manual said the E85 use over 50% of the time required oil changes more frequently.
It would be interesting to start using E85 on a fresh oil change, with the OLM reset, to see how many miles it takes until it hits 100%. I wonder if it would be adjusted since the sensors are reading different O2 levels and the rate of fuel delivery is increased.
http://cdn.dealereprocess.com/cdn/se.../2017-f150.pdf
My last truck's owner's manual said the E85 use over 50% of the time required oil changes more frequently.
Posting Guru
Joined: Jan 2006
Posts: 1,490
Likes: 16
From: Arizona/Texas
I just looked. Page 549. On these newer trucks all it says under the maintenance section is to run one full tank of gasoline at every oil change, as indicated by the OLM.
It would be interesting to start using E85 on a fresh oil change, with the OLM reset, to see how many miles it takes until it hits 100%. I wonder if it would be adjusted since the sensors are reading different O2 levels and the rate of fuel delivery is increased.
http://cdn.dealereprocess.com/cdn/se.../2017-f150.pdf
My last truck's owner's manual said the E85 use over 50% of the time required oil changes more frequently.
It would be interesting to start using E85 on a fresh oil change, with the OLM reset, to see how many miles it takes until it hits 100%. I wonder if it would be adjusted since the sensors are reading different O2 levels and the rate of fuel delivery is increased.
http://cdn.dealereprocess.com/cdn/se.../2017-f150.pdf
My last truck's owner's manual said the E85 use over 50% of the time required oil changes more frequently.
I just wish E85 was more readily available in Arizona. I'd use just for the increase in performance. But a good point was made about the comparison of premium and E85.
Senior User
Joined: Aug 2017
Posts: 336
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I checked the owners manual of my previous 2010 with the 5.4. And it did require the increase in oil changes if using the E85. I was just afraid I had missed it in the new owners manual. Although the longest I have gone with synthetic is 39%.
I just wish E85 was more readily available in Arizona. I'd use just for the increase in performance. But a good point was made about the comparison of premium and E85.
I just wish E85 was more readily available in Arizona. I'd use just for the increase in performance. But a good point was made about the comparison of premium and E85.
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Cargo Master
Joined: Oct 2010
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From: barton city mi
In my '12 5.0, with a MPT 93Race, and later a 93PRX, it made sense to run E85 when it was in the range of .70-.80 cents a gallon less than 93. at .80 less it was a toss up, but at .70, the truck got 93 gas.
Usually, E85 could run between .90-1.10 a gallon less than E85. I got more/better performance, but lost around 3mpg. No big deal, I was after performance, not economy, to a point.
If you have a flexfuel, and normally run 93, corn would be a good thing.
But if you're after economy, and don't run a higher performance tune, you may as well stick with 87, which in Michigan, IS E15.
I run 93 still in my 3.5 Ego, you better bet I'd like to run E85 in it, but none of the Egoboosts are Flex capable.
BTW, I always ran a tank of gas/E15, when oil change time was here, othertimes, it was E85 all the time for the last 30k or so miles that I owned it. Never experienced any problem, including the cold weather start some claim to have. I ran that truck at -25/-40F, no starting problem. YMMV.
Usually, E85 could run between .90-1.10 a gallon less than E85. I got more/better performance, but lost around 3mpg. No big deal, I was after performance, not economy, to a point.
If you have a flexfuel, and normally run 93, corn would be a good thing.
But if you're after economy, and don't run a higher performance tune, you may as well stick with 87, which in Michigan, IS E15.
I run 93 still in my 3.5 Ego, you better bet I'd like to run E85 in it, but none of the Egoboosts are Flex capable.
BTW, I always ran a tank of gas/E15, when oil change time was here, othertimes, it was E85 all the time for the last 30k or so miles that I owned it. Never experienced any problem, including the cold weather start some claim to have. I ran that truck at -25/-40F, no starting problem. YMMV.
Senior User
Joined: Aug 2017
Posts: 336
Likes: 2
In my '12 5.0, with a MPT 93Race, and later a 93PRX, it made sense to run E85 when it was in the range of .70-.80 cents a gallon less than 93. at .80 less it was a toss up, but at .70, the truck got 93 gas.
Usually, E85 could run between .90-1.10 a gallon less than E85. I got more/better performance, but lost around 3mpg. No big deal, I was after performance, not economy, to a point.
If you have a flexfuel, and normally run 93, corn would be a good thing.
But if you're after economy, and don't run a higher performance tune, you may as well stick with 87, which in Michigan, IS E15.
I run 93 still in my 3.5 Ego, you better bet I'd like to run E85 in it, but none of the Egoboosts are Flex capable.
BTW, I always ran a tank of gas/E15, when oil change time was here, othertimes, it was E85 all the time for the last 30k or so miles that I owned it. Never experienced any problem, including the cold weather start some claim to have. I ran that truck at -25/-40F, no starting problem. YMMV.
Usually, E85 could run between .90-1.10 a gallon less than E85. I got more/better performance, but lost around 3mpg. No big deal, I was after performance, not economy, to a point.
If you have a flexfuel, and normally run 93, corn would be a good thing.
But if you're after economy, and don't run a higher performance tune, you may as well stick with 87, which in Michigan, IS E15.
I run 93 still in my 3.5 Ego, you better bet I'd like to run E85 in it, but none of the Egoboosts are Flex capable.
BTW, I always ran a tank of gas/E15, when oil change time was here, othertimes, it was E85 all the time for the last 30k or so miles that I owned it. Never experienced any problem, including the cold weather start some claim to have. I ran that truck at -25/-40F, no starting problem. YMMV.
Senior User
Joined: Aug 2017
Posts: 336
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The Michigan website says that all gasoline grades are limited to 10% by volume (unless otherwise specified).
Laughing Gas
Joined: Apr 2017
Posts: 941
Likes: 25
From: Port huron MI
There are a large number of stations in MI that have switched over to e15, they just have to mark the pump. Which sucks because the station i normally fill my boat at because they have a huge parking lot switched, and ethanol is the last thing a boat needs.
Senior User
Joined: Aug 2017
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Interesting. Fortunately over here, the E15 is limited to a small (but growing) number of stations and even then it is offered in addition to regular 87.
Laughing Gas
Joined: Apr 2017
Posts: 941
Likes: 25
From: Port huron MI
They are replacing more and more of the "this fuel may contain up to 10% ethanol" signs with "this fuel may contain up to 15% ethanol". Not exactly excited about it, as it terrible for small engines and marine applications, plus the number of stations that sell ethanol free is shrinking quickly.
Senior User
Joined: Aug 2017
Posts: 336
Likes: 2
They are replacing more and more of the "this fuel may contain up to 10% ethanol" signs with "this fuel may contain up to 15% ethanol". Not exactly excited about it, as it terrible for small engines and marine applications, plus the number of stations that sell ethanol free is shrinking quickly.