Mainly low cost, high octane, excellent fuel system cleaning properties. Flex Fuel trucks get a little giddyup in their step on E85.
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- Thread starter swathdiver
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Charlie207
Full Access Member
Closest pump in 90 miles away. lol
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swathdiver
Full Access Member
These engines run better on it. Slightly cooler, cleaner, cleans up combustion chamber, very resistant to knock, etc.
If the price is low enough, it may cost less per mile to use it compared with gasoline. The engines love it. But if it's not around, it's not around. Up there in the north they run a lower concentration to make starting easier in cold weather.
I am headed south to North Florida this weekend - I will be on the lookout for some E85 "in the name of science" along the highway!
When my Yukon was bone stock, I did some 'science' on the E85..
I didn't notice any difference at all in power or performance...
The only thing I really noticed was that my HWY MPG went from 16/17 ish
to about 14 ish on a good interstate trip. The trade off for price per gallon
seemed to about even out.
I can get E85 around here, but it's pretty out of the way..
One I put on my supercharger I wasn't able to use it anymore....
Now that I've pulled the SC and just went camshaft I haven't tried it out again,
but I assume it will be similar results.
So really it's a cost / benefit thing to me at this point
gooffeyguy
Tom
Why could you not use it with the supercharger? Boost loves E85. It's high octane (about 105), cools, and carries more oxygen.
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swathdiver
Full Access Member
It's around in the larger cities, Pensacola, Tallahassee, Jacksonville and sparse in between.
The 6.2 when stock actually doesn't allow a power increase on E85 as the motor is already at the limits of the transmission.
Some kits do not use larger injectors and therefore lack the capacity to burn E85 with the increased power of the supercharger.
I have seen octane ratings all over the place for E85. So what I did is settle on Sunoco's numbers. They list the R+M for 85% E85R as being 99 octane.
So from that I extrapolated what the R+M would be for each alcohol percent and wouldn't you know, it lined up pretty closely with those gas pump stickers for E15, E20, E40, etc.
That is why I could not use E85 with my Edelbrock SC.. Not enough fuel..
It uses the stock Flex fuel pump and injectors, so that pretty well maxes them out.
It didn't affect me much since E85 isn't the norm around here
It uses the stock Flex fuel pump and injectors, so that pretty well maxes them out.
It didn't affect me much since E85 isn't the norm around here
gooffeyguy
Tom
Makes sense, although I would think a supercharger "kit" would come with a higher flowing pump and injectors due to the higher horsepower and keeping a good safety margin on the injector duty cycles
The NON Flex fuel apps do give you injectors and a boost a pump thing...
Charlie207
Full Access Member
3.42s here as well.
At 70 on the highway I get about 18mpg.
At 70 on the highway I get about 18mpg.
My attempted science project was a bust - none of the stations I stopped at for fuel had E85 anywhere...On a positive note, I found my truck doesnt get as awful mileage as first thought. During my 3000+ mile trip, saw between 17.2 and 18.5 MPGs depending on traffic and driving (@Doubeleive had a few "Wes" episodes of high speed passes) conditions.
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swathdiver
Full Access Member
Next time use the Gas Buddy app on your phone to look for them. They're not everywhere but Tampa/St. Pete and South Florida and the Orlando area all have lots of stations that sell it. Even my little bedroom community has 7 or 8 stations now.
I had 2 destinations in Florida while there - Spring Hill/Brooksville and Marianna. There is just about less than jack shit on the drive between those 2 places. LOL
Forgot all about gas buddy app on my phone but seemed like the drive back tended to be outside of major area when it was time for go-go juice! Thanks for the reminder about the app-old age is slowly killing the 2 brain cells I have left!
Forgot all about gas buddy app on my phone but seemed like the drive back tended to be outside of major area when it was time for go-go juice! Thanks for the reminder about the app-old age is slowly killing the 2 brain cells I have left!
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swathdiver
Full Access Member
My first "Roller" video! LOL
The Yukon was called up for towing duties once again. Truck weighed about 7,000 pounds and the trailer loaded was about 4,000 pounds. Might have been heavier as Tow/Haul mode felt perfect running through the gears.
No squat this time with the new GM springs installed in 2021.
2020:
2022:
The Yukon was called up for towing duties once again. Truck weighed about 7,000 pounds and the trailer loaded was about 4,000 pounds. Might have been heavier as Tow/Haul mode felt perfect running through the gears.
No squat this time with the new GM springs installed in 2021.
2020:
2022:
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swathdiver
Full Access Member
The view from my hotel this morning:
Ran up to Jacksonville to tour the USS Orleck. A young man on board who volunteers gave me a great tour. With the navigation maps being out of date, getting to the ship was frustrating, the highway exits do not exist anymore. Took about 10 minutes to get back on track. Leaving was fine.
Truck has been on E85 since mid-November, burned through about 180 gallons so far and the content has been surprisingly low, high 60s at first to mid 70s until today when it finally came up to 80%. Just before I left, we took a fuel sample from the fuel rail and it shows about 78-80% while the computer showed 76%. Close enough for tv.
Now for the cool part, the "gas" mileage! Going up, she averaged 15.4 mpg and coming back she averaged 15.2 mpg at 72 mph average both ways. We made this run on gasoline a few months ago and averaged 19 mpg.
This tells me that the KO2s did not affect the city mileage hardly at all but gave up about two miles per gallon on the highway.
Ran up to Jacksonville to tour the USS Orleck. A young man on board who volunteers gave me a great tour. With the navigation maps being out of date, getting to the ship was frustrating, the highway exits do not exist anymore. Took about 10 minutes to get back on track. Leaving was fine.
Truck has been on E85 since mid-November, burned through about 180 gallons so far and the content has been surprisingly low, high 60s at first to mid 70s until today when it finally came up to 80%. Just before I left, we took a fuel sample from the fuel rail and it shows about 78-80% while the computer showed 76%. Close enough for tv.
Now for the cool part, the "gas" mileage! Going up, she averaged 15.4 mpg and coming back she averaged 15.2 mpg at 72 mph average both ways. We made this run on gasoline a few months ago and averaged 19 mpg.
This tells me that the KO2s did not affect the city mileage hardly at all but gave up about two miles per gallon on the highway.
Charlie207
Full Access Member
That looks like fun!
What map app were you using? I always recommend Waze because it can show the location of the police, as well as accidents, objects in the road, cars on the shoulder, animals/roadkill, traffic jams, construction/etc.... as long as other users report it in their Waze app.
If you're ever passing through Wilmington, NC you need to take a tour of the USS North Carolina. It's a massive Iowa Class battleship, and you can explore the ship for hours.
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swathdiver
Full Access Member
I was running the in car navigation unit with its 2016 circa map which was the last one produced. Waze is great.
Love Wilmington and Carolina and Wrightsville Beach but haven't been since 1990. Toured the USS North Carolina back then as well. Would be nice to take my wife there for a long weekend of relaxation and a little sightseeing. Planning on running up to Savannah to visit the National Museum of the Mighty Eigth Air Force and some other local attractions soon.
Charlie207
Full Access Member
I used to live in Wilmington... moved there after college at the advice of my USMC buddy. Great advice when several of the new friends owned bars downtown! Fun is an understatement.
nonickatall
Full Access Member
Mine does 17spg.
But in Germany we count different...
Spg are Smiles per Gallon...
But in Germany we count different...
Spg are Smiles per Gallon...
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