E-85 users thread - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

2forme · 11-09-2012, 10:17 AM

Apparently if you take the negative cable off the battery for a couple minutes, it fixes the gas gauge.

brichard0625 · 11-09-2012, 11:03 AM

Quote:

Originally Posted by Kochinopride

I gotta find out wtf is going on with my fuel gauge! Does anyone have a link to this discussion? I can't find anything on search...

Quick and easy way to tell..and i can confirm that this works...is to remove the negative cable from the battery, let it sit for 10 mins and pop it back on..the gas guage will correct itself if its wrong. Done this at least 3 times and it worked.

ABQautoxer · 11-09-2012, 11:16 AM

I'm about 170 miles into E85. Mileage is pretty awful but I don't have a good comparison since I have done probably 45 WOT 3rd gear pulls on this so the mileage would suck on gas as well though not as badly. I can say it appears mileage will be somewhere around 21-23mpg on E85 compared to 26-28mpg on a non E85 tune. I was getting 30mpg before either tune but I babied it because power was boring. Now that I have some, I do find myself using it a bit more.

Kochinopride · 11-09-2012, 12:47 PM

thanks brichard! You and I gotta drive down the roads one day... after my Turbo is completed lol

brichard0625 · 11-09-2012, 05:06 PM

Quote:

Originally Posted by Kochinopride

thanks brichard! You and I gotta drive down the roads one day... after my Turbo is completed lol

Im down for that...just make sure u take it easy so i can keep up with you lol

Crossover Auto · 11-09-2012, 05:40 PM

We need logs of your hpfp pressures not the mpg

arghx7 · 11-09-2012, 06:00 PM

The burden of proof is on people claiming that the fuel system will degrade at the same rate with E85 as with E10. That's a huge assumption right there. The people loudly claiming that E85 will have no long term effects are the people who have financial interest in that statement. What are you going to claim next, that leaning out the fuel with a performance tune won't degrade the cat? I'm not saying that cat life is or should be a high priority, but it's the same kind of statement--durability claims with insufficient data.

You use E85 with the stock fuel system at your own risk. It could cause problems in a year, or 10 years from now, or never. It's totally up in the air. We have no idea what the suppliers did for durability testing on E85 with the injectors or the pump.

ABQautoxer · 11-09-2012, 06:02 PM

Quote:

Originally Posted by Crossover Auto

We need logs of your hpfp pressures not the mpg

Who are you talking to? My tuner has a lot of mine now.

Kochinopride · 11-09-2012, 06:08 PM

Quote:

Originally Posted by arghx7

The burden of proof is on people claiming that the fuel system will degrade at the same rate with E85 as with E10. That's a huge assumption right there. The people loudly claiming that E85 will have no long term effects are the people who have financial interest in that statement. What are you going to claim next, that leaning out the fuel with a performance tune won't degrade the cat? I'm not saying that cat life is or should be a high priority, but it's the same kind of statement--durability claims with insufficient data.

You use E85 with the stock fuel system at your own risk. It could cause problems in a year, or 10 years from now, or never. It's totally up in the air. We have no idea what the suppliers did for durability testing on E85 with the injectors or the pump.

Valid point. we're too new into the FR-S/BRZ to say it's a reliable modification or not... By altering my fuel type to E85 I take the risk of finding out. I already made modifications to my car and will continue to make more. To me it's not a major risk since the car doesn't cost much (compared to my others). So far E85 has been fun, but I am cautiously watching my fuel gauge... Fun times! Let's hope if my engine blows, I can buy a new one!

Kochinopride · 11-09-2012, 06:31 PM

YUP OKAY! I just unplugged the battery and the fuel gauge went from 3/4 full to 1/4!!! I'm heading to the Gas station right now to get more E85... So that blows...

Crossover Auto · 11-10-2012, 03:51 AM

Quote:

Originally Posted by ABQautoxer

Who are you talking to? My tuner has a lot of mine now.

Everyone who has been running E85. Signs of a failing HPFP start to show when the pressures start dropping. Or if you like to tinker, tear it apart and check for wear.

Area86 · 11-10-2012, 02:34 PM

Quote:

Originally Posted by Kochinopride

YUP OKAY! I just unplugged the battery and the fuel gauge went from 3/4 full to 1/4!!! I'm heading to the Gas station right now to get more E85... So that blows...

Last night while I was driving home from work my fuel gauge dropped from 3/4 to 1/4. I didn't unplug the battery at all. I've been watching the fuel tank % on my torque app so I knew the gauge was off but it looks like it fixed itself for now anyway.

Crossover Auto · 11-16-2012, 08:11 PM

I guess no one has bothered to datalog the hpfp fuel pressures. Only way we know for sure if this does or does not affect is feedback from the community.

ABQautoxer · 11-16-2012, 08:21 PM

Mine are the same with 91 octane or E85 at all RPMs.

11-09-2012, 11:16 AM	#31
ABQautoxer Senior Member Join Date: Jun 2012 Drives: 2021 Supra / 2022 Tundra Location: Albuquerque, NM Posts: 659 Thanks: 60 Thanked 197 Times in 141 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I'm about 170 miles into E85. Mileage is pretty awful but I don't have a good comparison since I have done probably 45 WOT 3rd gear pulls on this so the mileage would suck on gas as well though not as badly. I can say it appears mileage will be somewhere around 21-23mpg on E85 compared to 26-28mpg on a non E85 tune. I was getting 30mpg before either tune but I babied it because power was boring. Now that I have some, I do find myself using it a bit more. __________________ TomR

11-09-2012, 12:47 PM	#32
Kochinopride Senior Member Join Date: Aug 2012 Drives: 13 FR-S, 12 CLS AMG, 05 Lotus Elise Location: Edgewater, NJ Posts: 532 Thanks: 103 Thanked 143 Times in 103 Posts Mentioned: 18 Post(s) Tagged: 0 Thread(s)	thanks brichard! You and I gotta drive down the roads one day... after my Turbo is completed lol __________________ 2005 Lotus Elise 2012 Mercedes Benz CLS AMG 6.3 2013 Scion FR-S 2011 Land Rover LR4 2013 Lamborghini Gallardo LP570-4 Superleggera

11-09-2012, 06:31 PM	#38
Kochinopride Senior Member Join Date: Aug 2012 Drives: 13 FR-S, 12 CLS AMG, 05 Lotus Elise Location: Edgewater, NJ Posts: 532 Thanks: 103 Thanked 143 Times in 103 Posts Mentioned: 18 Post(s) Tagged: 0 Thread(s)	YUP OKAY! I just unplugged the battery and the fuel gauge went from 3/4 full to 1/4!!! I'm heading to the Gas station right now to get more E85... So that blows... __________________ 2005 Lotus Elise 2012 Mercedes Benz CLS AMG 6.3 2013 Scion FR-S 2011 Land Rover LR4 2013 Lamborghini Gallardo LP570-4 Superleggera

11-16-2012, 08:21 PM	#42
ABQautoxer Senior Member Join Date: Jun 2012 Drives: 2021 Supra / 2022 Tundra Location: Albuquerque, NM Posts: 659 Thanks: 60 Thanked 197 Times in 141 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Mine are the same with 91 octane or E85 at all RPMs. __________________ TomR

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11-09-2012, 05:40 PM	#34
Crossover Auto Join Date: Jul 2012 Drives: FR-S, BR-Z, 86 Location: Plano, TX Posts: 231 Thanks: 37 Thanked 53 Times in 45 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	We need logs of your hpfp pressures not the mpg

11-09-2012, 06:00 PM	#35
arghx7 Senior Member Join Date: Nov 2011 Drives: car Location: cold Posts: 599 Thanks: 72 Thanked 611 Times in 185 Posts Mentioned: 33 Post(s) Tagged: 0 Thread(s)	The burden of proof is on people claiming that the fuel system will degrade at the same rate with E85 as with E10. That's a huge assumption right there. The people loudly claiming that E85 will have no long term effects are the people who have financial interest in that statement. What are you going to claim next, that leaning out the fuel with a performance tune won't degrade the cat? I'm not saying that cat life is or should be a high priority, but it's the same kind of statement--durability claims with insufficient data. You use E85 with the stock fuel system at your own risk. It could cause problems in a year, or 10 years from now, or never. It's totally up in the air. We have no idea what the suppliers did for durability testing on E85 with the injectors or the pump.

11-16-2012, 08:11 PM	#41
Crossover Auto Join Date: Jul 2012 Drives: FR-S, BR-Z, 86 Location: Plano, TX Posts: 231 Thanks: 37 Thanked 53 Times in 45 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I guess no one has bothered to datalog the hpfp fuel pressures. Only way we know for sure if this does or does not affect is feedback from the community.

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