E85. Do you test it? Do you use a flex fuel kit? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Scala · 09-11-2018, 12:28 PM

Finally found a gas station near me, 12 miles away, that carries E85 but they can't tell how often it is tested.
In the US by law it can be as low as E51 and I'd like to know what I'm putting in the tank before I do. Testing it is not difficult but time consuming.

Do you use a flex fuel kit or do you just select the Stage 2+ on your OFT as long as you know that the fuel is E75+ ?

Thank you.

carsebuco · 09-11-2018, 12:33 PM

I don't test mine, but based off the readings I'm sure it's closer to E50 than E85

MCTeeJ · 09-11-2018, 12:40 PM

Flex Fuel kit all the way. Take the guesswork out of it. My station usually is about 70-80%.

Code Monkey · 09-11-2018, 12:47 PM

Just get a flex fuel kit.

Sapphireho · 09-11-2018, 01:17 PM

I think in Cal the min is 70%. Mine is usually around 80%. To be safe, I would get the kit and tune. It is very cool being able just to fill up at either and the car figures it out for me.

Scala · 09-11-2018, 01:27 PM

Thanks for the replies. Do you guys run OFT or EcuTec?

Code Monkey · 09-11-2018, 01:37 PM

EcuTek.

Scala · 09-11-2018, 01:40 PM

Quote:

Originally Posted by Code Monkey

EcuTek.

Remote tune? How satisfied are you and why not OFT?

CSG Mike · 09-11-2018, 01:47 PM

I sure do. Flex fuel, and Ecutek.

PM me to order.

Grady · 09-11-2018, 01:53 PM

Flex fuel kit, ECUTEC, Remote tune (Very satisfied with Delicious). The station I get E85 from generally runs in the high 70’s, low 80’s at times.

I have tuned before but trying to learn tuning for E85 plus turbo, boost control I decided to go the easy route. With those combinations one mistake could cost a lot more than paying an experienced tuner to set up everything.

Code Monkey · 09-11-2018, 01:55 PM

Quote:

Originally Posted by Scala

Remote tune? How satisfied are you and why not OFT?

Very satisfied with my remote Delicious tune. OFT is not as capable and I only want to buy once.

bfrank1972 · 09-11-2018, 03:43 PM

FYI ethanol grades vary from season to season (in areas with seasons), in winter fuel stations tend to have a lower ethanol to gas ratio, atomization is better in cold climates.

Xxyion · 09-11-2018, 04:00 PM

I have the Delicious Flex Fuel kit. The nice thing about it, is that it comes with bluetooth that you can connect to your phone to check percentage. On average I get between 65% and 75% depending on the time of year.

AFAIK our cars only can take advantage of up to 60% so anything higher shouldn't make a huge difference. I could be wrong so if I am please correct me lol.

Scala · 09-11-2018, 06:06 PM

Good news for me. GATE Petroleum is a Jacksonville FL headquartered company with ~ 100 gas stations throughout the SE all of which carry E85 that tests consistently at E80 or better.
As long as my BRZ is within range of a GATE station I won't be needing a flex fuel kit. One issue solved.

The decision between EcuTek and OFT is leaning toward the OFT for the time being and this is due to the ease of changing tune stages -E85 etc- and recovering the OE tune without third party assistance.
I must also confess that the not insignificant cost Δ Is an issue at this early stage when I'm not yet certain about this project's longevity.

Thanks to all for their input.

09-11-2018, 12:28 PM	#1
Scala Member Join Date: Aug 2018 Drives: 2018 BRZ tS Location: Florida Posts: 51 Thanks: 29 Thanked 3 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	E85. Do you test it? Do you use a flex fuel kit? Finally found a gas station near me, 12 miles away, that carries E85 but they can't tell how often it is tested. In the US by law it can be as low as E51 and I'd like to know what I'm putting in the tank before I do. Testing it is not difficult but time consuming. Do you use a flex fuel kit or do you just select the Stage 2+ on your OFT as long as you know that the fuel is E75+ ? Thank you.

09-11-2018, 12:33 PM	#2
carsebuco How do I shift? Join Date: Nov 2016 Drives: '13 GBS BRZ Location: AZ Posts: 376 Thanks: 399 Thanked 129 Times in 92 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I don't test mine, but based off the readings I'm sure it's closer to E50 than E85 __________________

09-11-2018, 04:00 PM	#13
Xxyion Lowly Cartuber Join Date: Jul 2016 Drives: 2016 BRZ, 2005 Honda S2000 Location: California Posts: 902 Thanks: 41 Thanked 422 Times in 281 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	I have the Delicious Flex Fuel kit. The nice thing about it, is that it comes with bluetooth that you can connect to your phone to check percentage. On average I get between 65% and 75% depending on the time of year. AFAIK our cars only can take advantage of up to 60% so anything higher shouldn't make a huge difference. I could be wrong so if I am please correct me lol. __________________ 2016 Limited MT WR Blue BRZ \| Delicious Flash n Go Tune \| Delicious Flex Fuel Kit \| Nameless 2.5" with 5" Mufflers \| JDL UEL Headers \| Bayson R Diffuser/Side Skirts \| APR Front Splitter \| VIS Racing GT Wing \| ST Suspension Coilovers \| Grammlights Rays 57CR 17x9 +38 \| Sumitomo HTR Z iii 235/45/17 \|

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09-11-2018, 12:47 PM	#4
Code Monkey Senior Member Join Date: Jul 2016 Drives: Subaru BRZ Location: Atlanta, GA Posts: 866 Thanks: 961 Thanked 592 Times in 353 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Just get a flex fuel kit.

09-11-2018, 01:17 PM	#5
Sapphireho Famous Potatoes Join Date: Mar 2016 Drives: '15 ultramarine Location: Idaho Posts: 14,006 Thanks: 5,800 Thanked 19,567 Times in 9,210 Posts Mentioned: 162 Post(s) Tagged: 0 Thread(s)	I think in Cal the min is 70%. Mine is usually around 80%. To be safe, I would get the kit and tune. It is very cool being able just to fill up at either and the car figures it out for me.

09-11-2018, 01:27 PM	#6
Scala Member Join Date: Aug 2018 Drives: 2018 BRZ tS Location: Florida Posts: 51 Thanks: 29 Thanked 3 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Thanks for the replies. Do you guys run OFT or EcuTec?

09-11-2018, 01:37 PM	#7
Code Monkey Senior Member Join Date: Jul 2016 Drives: Subaru BRZ Location: Atlanta, GA Posts: 866 Thanks: 961 Thanked 592 Times in 353 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	EcuTek.

09-11-2018, 01:47 PM	#9
CSG Mike Join Date: Jul 2012 Drives: S2000 CR Location: Orange County Posts: 14,562 Thanks: 8,942 Thanked 14,211 Times in 6,854 Posts Mentioned: 970 Post(s) Tagged: 14 Thread(s)	I sure do. Flex fuel, and Ecutek. PM me to order.

09-11-2018, 03:43 PM	#12
bfrank1972 Senior Member Join Date: Jul 2013 Drives: 2013 FR-S Argento Location: Westport,CT Posts: 1,855 Thanks: 517 Thanked 1,041 Times in 616 Posts Mentioned: 7 Post(s) Tagged: 1 Thread(s)	FYI ethanol grades vary from season to season (in areas with seasons), in winter fuel stations tend to have a lower ethanol to gas ratio, atomization is better in cold climates.

09-11-2018, 06:06 PM	#14
Scala Member Join Date: Aug 2018 Drives: 2018 BRZ tS Location: Florida Posts: 51 Thanks: 29 Thanked 3 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Good news for me. GATE Petroleum is a Jacksonville FL headquartered company with ~ 100 gas stations throughout the SE all of which carry E85 that tests consistently at E80 or better. As long as my BRZ is within range of a GATE station I won't be needing a flex fuel kit. One issue solved. The decision between EcuTek and OFT is leaning toward the OFT for the time being and this is due to the ease of changing tune stages -E85 etc- and recovering the OE tune without third party assistance. I must also confess that the not insignificant cost Δ Is an issue at this early stage when I'm not yet certain about this project's longevity. Thanks to all for their input.

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