E85 Raleigh/Cary area
Thread Starter
Instructor
Joined: Jun 2016
Posts: 191
Likes: 90
From: Cary NC
E85 Raleigh/Cary area
Anyone have recommendations for a station that carry’s e85 in Raleigh/Cary/Apex area? I’m looking for stations that have e85 that people have experience at that has pretty consistent quality and consistent content.
E85 is going to be new for me so I’m just trying to do a little research on stations that folks use around here.
thanks in advance
E85 is going to be new for me so I’m just trying to do a little research on stations that folks use around here.
thanks in advance
Le Mans Master
Joined: May 2016
Posts: 6,901
Likes: 1,546
From: Florida
Can't give you specific info, but my experience with E85 anywhere is that it is never 85. More like 65/70.
I'm not sure why the standard is so weak. Also, I've not been actively interested in E85 for a couple of years now so it could be different now. Good luck with however you're using it or trying to use it.
I'm not sure why the standard is so weak. Also, I've not been actively interested in E85 for a couple of years now so it could be different now. Good luck with however you're using it or trying to use it.
Thread Starter
Instructor
Joined: Jun 2016
Posts: 191
Likes: 90
From: Cary NC
Can't give you specific info, but my experience with E85 anywhere is that it is never 85. More like 65/70.
I'm not sure why the standard is so weak. Also, I've not been actively interested in E85 for a couple of years now so it could be different now. Good luck with however you're using it or trying to use it.
I'm not sure why the standard is so weak. Also, I've not been actively interested in E85 for a couple of years now so it could be different now. Good luck with however you're using it or trying to use it.
Le Mans Master
Joined: May 2016
Posts: 6,901
Likes: 1,546
From: Florida
Yes, if you are installing a flex fuel system and tuning it you should be OK as a flex fuel system sensor will determine the mix thus adjusting the Stoichiometrics for proper fueling. Without knowing what vehicle, are you doing anything to the fuel pump(s) and fuel regulators?
Between the two fuels:
Gasoline stoich @ 14.7:1
Pure ethanol stoich @ 9:1
means that it takes more fuel volume to have a complete fuel efficiency as you go on a scale from pure gasoline to pure ethanol. Most factory fuel systems won't handle the pumping requirements as you get close to E85.
You have to have a flexible timing table as well as the octane rating of pure ethanol is about 114; E85 is about 100' but here again, depending how accurate the E85 is. And gasoline, of course, is 93
Between the two fuels:
Gasoline stoich @ 14.7:1
Pure ethanol stoich @ 9:1
means that it takes more fuel volume to have a complete fuel efficiency as you go on a scale from pure gasoline to pure ethanol. Most factory fuel systems won't handle the pumping requirements as you get close to E85.
You have to have a flexible timing table as well as the octane rating of pure ethanol is about 114; E85 is about 100' but here again, depending how accurate the E85 is. And gasoline, of course, is 93
Thread Starter
Instructor
Joined: Jun 2016
Posts: 191
Likes: 90
From: Cary NC
Yes, if you are installing a flex fuel system and tuning it you should be OK as a flex fuel system sensor will determine the mix thus adjusting the Stoichiometrics for proper fueling. Without knowing what vehicle, are you doing anything to the fuel pump(s) and fuel regulators?
Between the two fuels:
Gasoline stoich @ 14.7:1
Pure ethanol stoich @ 9:1
means that it takes more fuel volume to have a complete fuel efficiency as you go on a scale from pure gasoline to pure ethanol. Most factory fuel systems won't handle the pumping requirements as you get close to E85.
You have to have a flexible timing table as well as the octane rating of pure ethanol is about 114; E85 is about 100' but here again, depending how accurate the E85 is. And gasoline, of course, is 93
Between the two fuels:
Gasoline stoich @ 14.7:1
Pure ethanol stoich @ 9:1
means that it takes more fuel volume to have a complete fuel efficiency as you go on a scale from pure gasoline to pure ethanol. Most factory fuel systems won't handle the pumping requirements as you get close to E85.
You have to have a flexible timing table as well as the octane rating of pure ethanol is about 114; E85 is about 100' but here again, depending how accurate the E85 is. And gasoline, of course, is 93
So I’m trying to find recommendations for gas stations that have e85 that has some pretty consistent ethanol levels. It will be tuned to be able to run all e85, all 93, and anywhere in between.
Heel & Toe
Joined: Jan 2026
Posts: 22
Likes: 28
From: Cary NC
I usually get e85 from the sheetz on ten ten road or chapel hill rd in Cary. Granted it’s for my turbocharged s2000 on flex fuel but it’s worked for me with no issues.
I want to say it’s usually above e70
I want to say it’s usually above e70
