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E85?

philbilly20

By philbilly20
in Engines & Drivetrain

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310racing Enthusiast

310racing

Posted
Posted

I haven't had time to send in tune. They promptly replied to my email, and asked for the tune file, no data logs.

I pulled it last night, and will send it in today.

I had to reinstall the flex tune the way I set it up, so that I could send the file he requested in, and it def shifts lazy on regular accel. The flex tune is better than stock, but makes you appreciate the regular Diablo tune in the first few miles of running the current flex tune.

They sent me an update, very easy to work with, and quick.

I uploaded the tune and am currently driving it to test, jury still out.....it's much better than the original flex tune, but it's still doesn't feel as strong or drive as good with the flex tune installed. Gonna drive a bit more before I go back to the Diablo tune.

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Gmcant33 Enthusiast

Gmcant33

Posted
Posted

Just got 23mpg with e85 :driving:

 

I did follow a semi going 55 on smooth country roads lol.

 

Let me guess you were drafting? Lol

Only price you'll pay would paint chips and and window chip Well risking it of course

patriot Enthusiast

patriot

Posted
Posted

 

Only price you'll pay would paint chips and and window chip Well risking it of course

It's called tailgating and it's stupid dangerous for everyone.

 

I brake check people for that. HARD.

Gmcant33 Enthusiast

Gmcant33

Posted
Posted

It's called tailgating and it's stupid dangerous for everyone.

 

I brake check people for that. HARD.

Lol I hate when I drive my 1500 and people tailgate especially where I live no one has insurance but I don't mind when I drive my semi

bdsilverado Enthusiast

bdsilverado

Posted
Posted

It's called tailgating and it's stupid dangerous for everyone.

 

I brake check people for that. HARD.

 

I never said I was tailgating I was at least 3-4 full car lengths back. Thus why I said I don't know what the hell was going on when he said "let me guess you were drafting".

 

I actually do know what made me do this.... just over 1 rpm the entire time

 

:chill:

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patriot Enthusiast

patriot

Posted
Posted

Psssssssssst! That's one THOUSAND RPMs....but what's an error of a few orders of magnitude anyhow? ;)

02suburbanZ71 Senior Enthusiast

02suburbanZ71

Posted
Posted

Last summer there was a guy tailgating me in a brand new jeep and had the top off and doors off and i had my wiper fluid full to the top and held the button till i ran out of fluid! I saw him in the mirror wiping his sunglasses off! I soaked him

02suburbanZ71 Senior Enthusiast

02suburbanZ71

Posted
Posted

 

I never said I was tailgating I was at least 3-4 full car lengths back. Thus why I said I don't know what the hell was going on when he said "let me guess you were drafting".

 

I actually do know what made me do this.... just over 1 rpm the entire time

 

:chill:

I was just kidding about drafting.

David_ Enthusiast

David_

Posted
Posted

So what is the consensus on using E85 in the 2015 5.3L without RPO FHS? I refuse to believe that the $100 up-charge gets you anything of merit.

mjj Enthusiast

mjj

Posted
Posted

So what is the consensus on using E85 in the 2015 5.3L without RPO FHS? I refuse to believe that the $100 up-charge gets you anything of merit.

I think I remember someone mentioning that it doesn't come with the ethanol sensor in the fuel line. Without it I'd think the ECU couldn't take advantage of the included second tune meant for E85. I wonder if anyone on here with one of those OBDII readers and a 2015 without the option can get an ethanol reading or not. That might give us a better guess.

02suburbanZ71 Senior Enthusiast

02suburbanZ71

Posted
Posted

So what is the consensus on using E85 in the 2015 5.3L without RPO FHS? I refuse to believe that the $100 up-charge gets you anything of merit.

Are you telling me E85 is not standard on the 15' 5.3?

David_ Enthusiast

David_

Posted
Posted

Are you telling me E85 is not standard on the 15' 5.3?

 

It is apparently an added option (RPO code FHS) for $100. I haven't seen any in the wild.

02suburbanZ71 Senior Enthusiast

02suburbanZ71

Posted
Posted

 

It is apparently an added option (RPO code FHS) for $100. I haven't seen any in the wild.

Flex was standard in the sub 2002-06 lol. For 100$ its probably just a configuration in the ecm

David_ Enthusiast

David_

Posted
Posted

I wonder if anyone on here with one of those OBDII readers and a 2015 without the option can get an ethanol reading or not. That might give us a better guess.

 

Good idea. It looks like PID 52 will give you the ethanol percentage.

austingta Enthusiast

austingta

Posted
Posted

My new Denali 5.3 does not have flex fuel capability...:>(

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