E0 91 octane versus E10 87 octane

[roosterk0031]

SG2 works off air flow so when you change your fuels it losses accuracy, E0 to E10 might not make much difference but when I had my SG2 in the Stratus running higher blends it still is a good tool for instant feed back but the numbers are wrong.

Yeah there's not a lot of money to be saved in different fuels when your getting 40 mpg, 12.5 mpg Suburban it makes a much bigger difference.

With the Impala it make filling it up a whole lot easier on the wallet. 15 @ $1.53 instead of $2.35 is $12 less per tank, granted the tank doesn't get my wife as far.

[litesong]

Originally Posted by ever_green

I get best results (both power and mileage) with more alcohol in the tank up to 15%..... With winter E15 I can really crank up ignition timing and actually lean out mixture and make more torque, specially at low RPMs where my engine knocks with regular straight summer gas. I understand E10-15 can actually harm your mileage if your car is not tuned for it though.

Also part of the reason why your E10 mileage is worst than your E0 is because you are comparing winter time temperatures with summer time.

Ya.....another ethanol blend booster......& again, twiddling with factory settings....& again, making up excuses when E10 mpg is lower than E0 mpg. Given standard low 87 octane low compression ratio(9:1 to 11:1) gasoline engine factory settings, adding only 10% ethanol to 100% gasoline(E10), MUST decrease mpg by 8%, 7% to 5%....if you run yearly+ long comparisons.

[litesong]

Originally Posted by BabyDiesel

I would like to offer my car as an experimental platform!

There are several places nearby me with 87, 90, & 93 E0 gasoline. I can do a three tank trial run with 87 E0 if y'all would like. I have been running 89 E10 for the past 5 tanks at least. So yeah, I will gladly be a guinea pig

First, is your car set with standard "from the factory" settings? No playing allowed. Second, a year of testing with E0 & one year testing with E10 would be best. Failing that, we'll see what others determine as OK. Third, since the most cars are set to use standard 87 octane(& hopefully yours is, also), a comparison between 87 octane E0 & 87 octane 10% ethanol blends would be best. Are you using 89 octane E10, because you are having trouble with 87 octane E10? If you are having problems with 87 octane E10 with a car set to factory standard 87 octane gasoline, E0 has an increased chance of improving your engine performance compared to 87 octane E10.

[roosterk0031]

You are the only one I've ever heard on here saying year long test are best.

Everyone one else preaches ABA. ABA with a factory gauge the same day would be a good way to do it. But could only do a AB test one day without burning a lot of gas. With the car almost empty and fully warmed up find a nice spot of road, make 2-3 back and forth runs, recording average mpg each run. Then go put in 5 gallons of the second blend of gas. Even better if you get someone else to either pump the gas so it's a blind test.

BabyDiesel your SG2 won't be accurate so it wouldn't work for your escort, but Litesong could do it assuming he has a factory average MPG, and as well as I could with my Cobalts or Impala. Pretty easy and only take and hour or so, wish I had cruise control in my cobalt, maybe I'd use the Impala instead.

Raining and windy today and just filled up the Impala so can't today.

[roosterk0031]

Don't know how to do a poll so anyone that agrees Litesong year long test is best like his last post #33. Any one the prefers same day ABA or even my proposed AB test as better then like this post.

I think winters over so going outside to take the snows off the Impala.


Edit: 1 hour 25 minutes 4 tires change, 3 beers consumed. 42 to 44 psi in the Douglas Xtrac 2 according to the car.

[litesong]

Originally Posted by roosterk0031

You are the only one I've ever heard on here saying year long test are best.

Originally Posted by roosterk0031

Litesong year long test is best....

Rooster's upset with the obvious fact that ethanol burns best in high 114 octane, high compression ratio(16:1) ethanol engines & when only 10% ethanol blend is used(not burned effectively) in low 87 octane, low compression ratio (9:1 to 12:1) gasoline engines, mpg is collapsed by 8%, 8%, 7% & 5% compared to E0 burnings, far beyond the 3% btu LACK of ethanol.

Wow! How 'bout dat! Ethanol engine engineers know how to design high 114 octane, high compression ratio ethanol engines & gasoline engine engineers know how to design low 87 octane, low compression ratio gasoline engines. Who would've ev'r figgered dat out to be true!

At least, biased "ethanol in gasoline advocates" nev'r figgered it to be true & believe ethanol AND gasoline engineers just draw their pay without doin' enythang.

[MPGomatic]

Higher Octane Fuel Could Add MPG, SAE Panel Says

http://www.autonews.com/article/2015...sae-panel-says

In a world of higher octane gasoline -- in which 95 would replace 87 and become the new regular -- automakers could more easily and affordably meet stringent fuel economy standards as well as reduce carbon dioxide emissions.

During a panel discussion this week at the SAE World Congress here, representatives from Ford Motor Co., General Motors, Chevron Energy Technology Co. and an ethanol trade group agreed that raising octane would allow gasoline engines to run more efficiently, boosting fuel economy between 3 and 6 percent and lowering CO2 emissions by around 2 percent.

[BabyDiesel]

Just a reminder to keep it civil, gentlemen. Thank you.

[roosterk0031]

Fuel Economy

Love to get my hands on one of these and see what it really would do with E85, E85 numbers are currently all calculated at 1/3 loss.

Interesting E50 is 96-97 octane, some E85 proponents would like E50 to be the standard due to the lower reduction in mileage than E85. I'd prefer every pump be a blender so I could choose the blend I like based on my cents/mile. E50 would be under $2 a gallon today.

No idea what it would take for the refiners to make 96 octane without ethanol, race gas down the street is $7 a gallon I think it's 104 octane. So a guess would be it would take a 50/50 blend of 104 and 85 to make 95, around $5 a gallon.

[MPGomatic]

Originally Posted by roosterk0031

Fuel Economy

Love to get my hands on one of these and see what it really would do with E85, E85 numbers are currently all calculated at 1/3 loss.

Interesting E50 is 96-97 octane, some E85 proponents would like E50 to be the standard due to the lower reduction in mileage than E85. I'd prefer every pump be a blender so I could choose the blend I like based on my cents/mile. E50 would be under $2 a gallon today.

Bingo.

I've been banging on the manufacturers doors to test blends for MPG/HP/Cost. I'll get to do it, eventually. GM's truck engines are designed to make considerably more HP when running E85 over regular. The forced induction engines are wild cards.

I'm not that keen on E15, but blender pumps should be everywhere. People should have the power of choice.