A Complete Guide to E85 / Flex Fuel

E85 Fuel is something that everyone has heard makes more power. In this video we dyno test E85 fuel and compare it to 93 octane premium fuel. We also test for ethanol content of fuel from 3 different gas stations and compare it to racing E85 purchased from a race supply store.

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IE Flex Fuel Sensor

Integrated Engineering Stage 2 Flex Tune for MK7 GTI (IS20)

Integrated Engineering Stage 2 Flex Tune for MK7 GTI (IS38)

Integrated Engineering Stage 2 Flex Tune for MK7 Golf R (IS38)

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[Deutscheautoparts]

Drop an Ear Disappear Shirt
IE Flex Fuel Sensor
Integrated Engineering Stage 2 Flex Tune for MK7 GTI (IS20)
Integrated Engineering Stage 2 Flex Tune for MK7 GTI (IS38)
Integrated Engineering Stage 2 Flex Tune for MK7 Golf R (IS38)

[JustinBone]

This was, by far, the most informative video of E-85 I’ve seen to date.

[rdBoyMusic]

Your channel is a big reason why I bought my first VW. Picked up my mk7 Golf R 2 weeks ago and feel confident in doing maintenance myself, with the help of your videos. Thanks from Australia.

[SpecialFX]

Glad to see this 2.0t survive the dyno

[Shiver]

I don't even own a VW, but this is one of my favorite youtube channels. Just so entertaining.

[iclsdmv]

I put an E85 tuner on my 97 BMW R1100 a few weeks ago and it has been working pretty well so far.

[zippin]

This was super informative. I’ve always been a bit leary of E85 but thought it did a good job of laying out the pros and cons.

[aroundomaha]

Lol I didn't expect the larping joke. Excellent content! I sold my GTI but won't let my DAP subscription go.

[harryazzole]

Got a Kroger near me and like all Kroger's they're notorious for always having spot on ethanol content, almost always 85% and sometimes even higher. Biggest benefit to running E in a boosted application is how much more torque you make down low due to the inherit resistance to knock and the more aggressive timing you can put in it, giving you way quicker and aggressive spool that carries all the way through to the limiter. Filling up 2 5 gallon jugs at the pump to take to the track is extremely convenient, too. Once your car is dialed on E you'll never want to pump standard gas again unless it's you're daily.

[gaudie]

In Brazil we have Flex Fuel TSI models and they shows lots of high pressure pump and injectors problems with long term ethanol use.

[chooseymomschoose]

Hell of a good video. Best explanation of E85/Flex Fuel complications I've yet seen on Youtube.

[toddstevens]

Now I know why the crows won't GMO corn, it's for the car not for dinner.

[southdakotaslim]

Again, best content in the whole carssection.

So Volkswagen FSI only needs the high pressure pump? Running a 3.6 here.

[masterofthegame]

Not sure which is of greater value: The comedy and puns or the education in your videos.

[danielcofield]

I've been running an E30 blend about 2 to 3 gallons with the rest 93 octane at fill up for over a year now with success. Mk7 GTI full bolt on GIAC stage 2 tune stock fuel pumps..

[TheFiku]

this video came out at a perfect time, i googled and watched yt videos for 8 hours yesterday

[StephenBrewer]

My first Evo 9 making 768 awhp had a 2.3 striker, 2200cc ID injectors, 3 fuel pumps, and ran e85. I had to have the tank full, and kept 10 gallons in the back seat. All of that I might have got about 180-200 miles. But it was very hard to stay out of boost ;)

[Corpulu]

As someone with a big turbo Mk7 Golf R (EFR7163) on a custom UM Flex Fuel tune: worth every penny. Smiles per gallon > miles per gallon.

[TylerSmithMusic]

Your videos are funny and informative I really appreciate all your efforts to help us VW/Audi guys

[COMotorsports]

I wonder how many stopped watching at 2:50 and just went and put e85 in their car. lol Nice work on this one.