Cons of running E85 all the time?

bennettbrowder3 · 05-11-2021, 03:44 AM

I have a FBO, cammed 18 1LE and about to get a flex fuel tune. Here in Charleston we have plenty of places to get good E.
What are the cons of running Straight E85 all the time??

LT1ornothing · 05-11-2021, 04:35 AM

Quote:

Originally Posted by bennettbrowder3

I have a FBO, cammed 18 1LE and about to get a flex fuel tune. Here in Charleston we have plenty of places to get good E.
What are the cons of running Straight E85 all the time??

30% less fuel economy and not recommend to be left in the tank if the car is going into storage.

NA18CamaroSS · 05-11-2021, 08:22 AM

Tire wear. With all of that extra power you tend to spin the rear wheels a bit more.

laynlo15 · 05-11-2021, 08:53 AM

There is no downside in my opinion and have been running it on my C7 for about a year. Once you install the flex fuel sensor your tuner will set up another table that adds timing so you'll def feel the additional power it makes. I agree on the storage and what I did I ran mine all the way to November and ran the tank down to about an 1/8 tank or less then added 93 octane and ran it all winter when the days here in Missouri were nice enough to get it out. My C7 picked up almost 1/2 second and 4 mph just by changing over to E85 (E70) and tuning. Can't beat that with a stick, then I added long tubes and xpipe, then retuned again and have went as quick as 11.06@125 w/1.58 60ft. I do of course run a drag radial at the track. My best time on 93 was 12.06@116 w/1.80 60ft

laynlo15 · 05-11-2021, 09:30 AM

I noticed a post that said its 30% less on fuel economy. Mine will get about 29-30 mpg on 93 octane and 23-24 mpg on E65 to E70 which is what I can usually get in this area. The higher the E content the mileage goes down. So mines not in the 30% range, maybe because of the arrow of the C7 compared to the Camaro which is not a slick going thru the air as the Corvette.

KingLT1 · 05-11-2021, 09:50 AM

The fuel mileage loss is off set by the lower cost which still makes E cheaper to run.

Far as storing the car with E in the tank... By the time you go to store the car, most areas have switched to winter blend E which is around 65%. I haven't had any issues leaving Winter blend E in the tank while the car is stored inside. Now if we were talking about C85 or X98 from a drum, then yea you might want to dilute that a bit while storing the car.

laynlo15 · 05-11-2021, 10:04 AM

Joe your winter blend is what I get in the summer here in Missouri. When I first put in E this spring it was under E60.

NYblack1le · 05-11-2021, 01:42 PM

Been running e85 for 3 years. No problems to speak of.

Brudda*Termite · 05-11-2021, 04:01 PM

I read that the MPG reduction was 15%-25% depending on compression ratio and other factors. Just got back from an E85 run today, have to go about 25 miles out to get it, worth the drive, with a couple 5 gallon tanks in the trunk for good measure. Fun moment, some old man yelled at me for hoarding fuel because of the pipeline thing...

NicKey · 05-11-2021, 04:16 PM

You should compare e85 to race fuel not regular fuel, but dollar for dollar e85 is still a better "fuel" deal in our market. We run it in all of our late model cars and trucks which are properly set up to do so.

A major issue will be that you face muscles will hurt from smiling so much do to the overall increase in performance. I also happen to be able to tolerate the smell better than 87-93 and it doesn't tear me up as bad either. BTW.....been running it for two decades.

bennettbrowder3 · 05-11-2021, 07:17 PM

Thanks for all the Info. Yes it is a Manual car and its my daily driver so no storing. I dont mind the decrease in fuel mileage because it cost less than 93.
Also getting a flex fuel tune with Vengeance Racing, which has already tuned my car for 93.
Thanks guys.

driven2exceSS · 05-11-2021, 08:03 PM

For a little piece of mind, you could also run some Schaeffer's SoyUltra Additive with the e85... I just started using it this past weekend

https://www.schaefferoil.com/soyutlra.html

This is the sales rep I have been going through for my oil and products:

laynlo15 · 05-11-2021, 09:33 PM

Quote:

Originally Posted by NicKey

You should compare e85 to race fuel not regular fuel, but dollar for dollar e85 is still a better "fuel" deal in our market. We run it in all of our late model cars and trucks which are properly set up to do so.

A major issue will be that you face muscles will hurt from smiling so much do to the overall increase in performance. I also happen to be able to tolerate the smell better than 87-93 and it doesn't tear me up as bad either. BTW.....been running it for two decades.

Stefano I totally agree. I smile every time I go WOT and I've been paying 2.25 to 2.40 per gallon and comparing as Lt1King the last time I checked on 93 octane it was 3.19 per gallon. The smell is so much better with corn it makes me wanna put to butter, salt and pepper on it.

driven2exceSS · 05-11-2021, 10:15 PM

Quote:

Originally Posted by laynlo15

The smell is so much better with corn it makes me wanna put to butter, salt and pepper on it.

Too funny Greg! I had two ears with dinner tonight (seriously) lol. Somehow related? IDK...hmmmm??

05-11-2021, 03:44 AM	#1
bennettbrowder3 Drives: 2018 2SS 1LE Join Date: Feb 2021 Location: Bloomington, IL Posts: 30	Cons of running E85 all the time? I have a FBO, cammed 18 1LE and about to get a flex fuel tune. Here in Charleston we have plenty of places to get good E. What are the cons of running Straight E85 all the time??

05-11-2021, 08:22 AM	#3
NA18CamaroSS Drives: 2018 Chevrolet Camaro 2SS 1LE 6M Join Date: Jul 2019 Location: California Posts: 283 View My Garage	Tire wear. With all of that extra power you tend to spin the rear wheels a bit more. __________________ Bolt-ons.

05-11-2021, 08:53 AM	#4
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	There is no downside in my opinion and have been running it on my C7 for about a year. Once you install the flex fuel sensor your tuner will set up another table that adds timing so you'll def feel the additional power it makes. I agree on the storage and what I did I ran mine all the way to November and ran the tank down to about an 1/8 tank or less then added 93 octane and ran it all winter when the days here in Missouri were nice enough to get it out. My C7 picked up almost 1/2 second and 4 mph just by changing over to E85 (E70) and tuning. Can't beat that with a stick, then I added long tubes and xpipe, then retuned again and have went as quick as 11.06@125 w/1.58 60ft. I do of course run a drag radial at the track. My best time on 93 was 12.06@116 w/1.80 60ft __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

05-11-2021, 09:30 AM	#5
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	I noticed a post that said its 30% less on fuel economy. Mine will get about 29-30 mpg on 93 octane and 23-24 mpg on E65 to E70 which is what I can usually get in this area. The higher the E content the mileage goes down. So mines not in the 30% range, maybe because of the arrow of the C7 compared to the Camaro which is not a slick going thru the air as the Corvette. __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

05-11-2021, 09:50 AM	#6
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 6,793	The fuel mileage loss is off set by the lower cost which still makes E cheaper to run. Far as storing the car with E in the tank... By the time you go to store the car, most areas have switched to winter blend E which is around 65%. I haven't had any issues leaving Winter blend E in the tank while the car is stored inside. Now if we were talking about C85 or X98 from a drum, then yea you might want to dilute that a bit while storing the car. __________________ 2016 NFG 1SS A8 Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA

05-11-2021, 10:04 AM	#7
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	Joe your winter blend is what I get in the summer here in Missouri. When I first put in E this spring it was under E60. __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

05-11-2021, 01:42 PM	#8
NYblack1le Drives: 2018 1SS 1LE Join Date: Dec 2012 Location: NY Posts: 395	Been running e85 for 3 years. No problems to speak of.

05-11-2021, 04:01 PM	#9
Brudda*Termite Drives: 2017 Camaro 2SS Join Date: Mar 2019 Location: Lakeland, Florida Posts: 416	I read that the MPG reduction was 15%-25% depending on compression ratio and other factors. Just got back from an E85 run today, have to go about 25 miles out to get it, worth the drive, with a couple 5 gallon tanks in the trunk for good measure. Fun moment, some old man yelled at me for hoarding fuel because of the pipeline thing... __________________ Gary 2017 2SS A8 White, Bolt-Ons, Prayed Upon

05-11-2021, 04:16 PM	#10
NicKey Drives: Nickey Super Camaro Join Date: Nov 2008 Location: Loves Park, Illinois Posts: 1,668	You should compare e85 to race fuel not regular fuel, but dollar for dollar e85 is still a better "fuel" deal in our market. We run it in all of our late model cars and trucks which are properly set up to do so. A major issue will be that you face muscles will hurt from smiling so much do to the overall increase in performance. I also happen to be able to tolerate the smell better than 87-93 and it doesn't tear me up as bad either. BTW.....been running it for two decades.

05-11-2021, 07:17 PM	#11
bennettbrowder3 Drives: 2018 2SS 1LE Join Date: Feb 2021 Location: Bloomington, IL Posts: 30	Thanks for all the Info. Yes it is a Manual car and its my daily driver so no storing. I dont mind the decrease in fuel mileage because it cost less than 93. Also getting a flex fuel tune with Vengeance Racing, which has already tuned my car for 93. Thanks guys.

05-11-2021, 08:03 PM	#12
driven2exceSS Drives: 2016 2SS BLK A8 Vert Join Date: Dec 2017 Location: MA Posts: 1,029	For a little piece of mind, you could also run some Schaeffer's SoyUltra Additive with the e85... I just started using it this past weekend https://www.schaefferoil.com/soyutlra.html This is the sales rep I have been going through for my oil and products: Attached Images __________________ NPP, MRC, Tinted side & rear reflectors, OEM ZL1 Rockers / 3rd Brake / Darken tail lights, OEM Blk rear splash guards, Satin hood wrap, Fuse pull, Sound tube delete, Cat delete, Ported 95 TB, Ported MSD IM, Dry RotoFab, ARH 1 7/8 headers, E85, "Performance Dyno" Tune, BMR "pieces", "Track" alignment, Hawk DCT-70/70's w/SRF, Goodridge lines, Ti shims, Red powdered calipers, 18" APEX SM-10's w/ Pirelli DH's, FE4 Vert swaybars, Brake cooling ducts, ATI 10% UD, Vorshlag camber plates, OEM 1LE Splitter w/APR Ext., Velossa BIG MOUTH Ram Air, CF QA1, ZLE brakes(F)

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