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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Really!! Another E85 Thread...



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      07-13-2012, 10:01 AM   #45
benzy89
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For anyone who's looking for E85, this website seems to have the most updated & accurate listing (even lists govt./private gas stations )

http://alternative-fuel.findthedata....a/Ethanol-(E85)
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      07-13-2012, 10:20 AM   #46
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So glad there's about 4-5 E85 stations around me within a 10 mile radius.
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      07-13-2012, 10:22 AM   #47
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Quote:
Originally Posted by benzy89 View Post
For anyone who's looking for E85, this website seems to have the most updated & accurate listing (even lists govt./private gas stations )

http://alternative-fuel.findthedata....a/Ethanol-(E85)
http://e85vehicles.com/e85-stations/e85-california.html

I have been using this site.. the pump I use is called propel ( e85 and bio diesel) and it's located at the shell gas stations. it even has a spot where you can sign in a flex fuel account be tracked all over the country. LOL
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      07-13-2012, 01:42 PM   #48
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Measuring it out most of the time

But not that difficult filling it up with 50/50 at times

I document my fills and calculate how much I need to blend

Love this stuff


[quote=benzy89;12318830]How are you mixing? Just filling up 1/2 way with 91 + the other 1/2 with E85? Or are you actually measuring it out to make sure you have a consistent 50:50 blend?
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      07-13-2012, 01:47 PM   #49
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Quote:
Originally Posted by benzy89 View Post
For anyone who's looking for E85, this website seems to have the most updated & accurate listing (even lists govt./private gas stations )

http://alternative-fuel.findthedata....a/Ethanol-(E85)
link didn't work =\
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      07-13-2012, 01:50 PM   #50
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link didn't work =\
Sorry -- Try this. Just on the left hand side select "Ethanol" for the Fuel Type search
http://alternative-fuel.findthedata.org/
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      07-13-2012, 04:42 PM   #51
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Stock tunes will recover lost power due to timing corrections being reduced. Most stay around 20-40% mixed, almost noone does more than 50% right now due to inherent DME limitations, namely STFT at WOT.
When you say "stock tunes" you are referring to those who are using NO tunes am i correct?
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      07-13-2012, 07:20 PM   #52
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When you say "stock tunes" you are referring to those who are using NO tunes am i correct?
Yes sorry, the various OEM roms, stg0 cobb, etc.
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      07-13-2012, 07:59 PM   #53
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Yes sorry, the various OEM roms, stg0 cobb, etc.
Just making sure, no tune yet but been wanting to mix E85 to make the engine run smoother. Good to know its ok without tune. (unless im missing more haha)
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      07-13-2012, 08:55 PM   #54
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^^Real won't see any gains running E85 on a stock tune, but it def won't hurt if it's mixed appropriately (not higher than 95 octane)
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      07-13-2012, 10:50 PM   #55
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^^Real won't see any gains running E85 on a stock tune, but it def won't hurt if it's mixed appropriately (not higher than 95 octane)
well, yes you will if the e85 allows for more advance than whatever gas you're using, especially for ACN 91 users. And mixing higher than X octane has nothing to do with anything, it's fuel volume limits that are an issue.
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      07-13-2012, 10:53 PM   #56
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well, yes you will if the e85 allows for more advance than whatever gas you're using, especially for ACN 91 users. And mixing higher than X octane has nothing to do with anything, it's fuel volume limits that are an issue.
Well your timing will be a lot better, but it's not like your car will go from the stock 300/300 tune to 320/330
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      07-14-2012, 09:10 AM   #57
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Well your timing will be a lot better, but it's not like your car will go from the stock 300/300 tune to 320/330
Benz, there's quite a difference in torque between 6 degrees at X load vs 10 degrees at x load especially in the upper rpm's.

On ACN swill, you may very well be missing out on 20 whp at 6000 rpm. In my observations the stock DME is designed to ride the knock sensor/correction system and generally take advantage of whatever octane is available. On good 93 octane I still pull timing across cylinders on Stg0.

What I should do is run my tank down to vapor, fill with 1.5 gallons crap 91 from a mom/pop and do a few pulls. Then add 1 gallon of e85 and do a few pulls. I'd compare the logs and the resulting csv dyno's. At least it would help us understand the influence of cleaning up timing on the stock rom with e85.
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      07-14-2012, 12:28 PM   #58
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Really, because the manual doesn't state so, lol.

It scares me where aftermarket products would be if they only followed the owners manual.
My manual states not to use E85, but I can't comment on yours. And, as I stated before, anyone is free to use whatever fuel they want, but should be prepared for any problems that might arise in a car that is clearly NOT equipped for "flex-fuel" capability.
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      07-14-2012, 12:49 PM   #59
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My manual states not to use E85, but I can't comment on yours. And, as I stated before, anyone is free to use whatever fuel they want, but should be prepared for any problems that might arise in a car that is clearly NOT equipped for "flex-fuel" capability.
And white wedding dresses are for virgins. We got it, BMW says not to use e85, and downpipes, single turbo swaps, fmic's piggies and flash tunes. But this is an enthusiast board and you're in the modifications forum. So the e85 ghost stories as I call them are the same that I was reading in 2004 on evoM, 2005 on nasioc, and stand in the face of years and years of use in the n54 itself. It's 2012, we will evolve as they did!
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      07-14-2012, 03:00 PM   #60
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And white wedding dresses are for virgins. We got it, BMW says not to use e85, and downpipes, single turbo swaps, fmic's piggies and flash tunes. But this is an enthusiast board and you're in the modifications forum. So the e85 ghost stories as I call them are the same that I was reading in 2004 on evoM, 2005 on nasioc, and stand in the face of years and years of use in the n54 itself. It's 2012, we will evolve as they did!
+100000000000000


Yeah, what he said

Over 40K and NO ISSUES

E85 FTW !!!
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      07-14-2012, 04:14 PM   #61
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ive been doing about 5-5.5 gallons of 91 oct and 6-8 gallons of e85 and so far no issues. i even took it in to the dealer while doing a scope check and everything lol! they said everything is working good...i have: RL DP,BMS DCI,JB4 with new firmware on map 5
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      07-14-2012, 04:31 PM   #62
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Benz, there's quite a difference in torque between 6 degrees at X load vs 10 degrees at x load especially in the upper rpm's.

On ACN swill, you may very well be missing out on 20 whp at 6000 rpm. In my observations the stock DME is designed to ride the knock sensor/correction system and generally take advantage of whatever octane is available. On good 93 octane I still pull timing across cylinders on Stg0.

What I should do is run my tank down to vapor, fill with 1.5 gallons crap 91 from a mom/pop and do a few pulls. Then add 1 gallon of e85 and do a few pulls. I'd compare the logs and the resulting csv dyno's. At least it would help us understand the influence of cleaning up timing on the stock rom with e85.
I live in California so yes I have the unfortunate pleasure of dealing with this type of gas (wohoo). Ive been filling up with 4 gal of 100 oct near me lately, but in california its $8.49/gal. so being able to compensate with E85 and not needing a tune helps a great deal. And yes there is a very noticeable difference when i supplement with 100 octane. Car runs much smoother and jumps a little quicker.
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      07-18-2012, 09:59 AM   #63
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My e85 station says the pump contains at least 70% ethanol, is this standard practice for e85?
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      07-18-2012, 10:28 AM   #64
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My e85 station says the pump contains at least 70% ethanol, is this standard practice for e85?
Regular pump gas contains ~15% ethanol, E85 should be ~85% (hence the 85)
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      07-18-2012, 11:06 AM   #65
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Quote:
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My e85 station says the pump contains at least 70% ethanol, is this standard practice for e85?
Quote:
Originally Posted by benzy89 View Post
Regular pump gas contains ~15% ethanol, E85 should be ~85% (hence the 85)
E85 by law can have as little as 70% ethanol, hence the sticker at the pumps. Winter blends of E85 are right at 70-75% in the colder climates. Most summer blends are at 80-85%.
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      07-18-2012, 02:05 PM   #66
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Quote:
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JB4 tuned FBO+meth
I went to the track on Friday night 50/50 e85/93
1st run 12.0@116
2nd run 12.3 codes 29e2/29f2
3rd run 12.5 same codes
Codes popped just before 100mph at WOT
Hooked up to laptop and fuel loop was @ 98 each time it coded
Terry advised me to me to turn off loop auto learn and set loop to 80 to stop codes
I was wondering if maybe codes were due to e85
Still running out the e85 tank
I'll fill up with93 tomorrow and do some logs to see if I get the same codes without e85 before turning off the fuel loop auto loop
Any updates?
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