6.2L Flex Fuel E85 ?
Cargo Master
Joined: Dec 2003
Posts: 2,182
Likes: 7
From: Saint Augustine, FL
E85 should be an excellent towing fuel, especially in hot weather. Ethanol is great for cooling the fuel/air charge and thus keeping air density high and reducing pre-ignition, especially under high load conditions. This is why many racers use E85 exclusively, especially in forced induction applications.
As Busa 1 Dave noted, the tune will be the final determiner of performance (towing as well). A factory tune may not take full advantage of E85's benefits but perhaps there is an aftermarket tuner that does. In my experience aggressive E85 tunes tend to have poor fuel economy. But it its power you're after you might be pleased with the results.
As Busa 1 Dave noted, the tune will be the final determiner of performance (towing as well). A factory tune may not take full advantage of E85's benefits but perhaps there is an aftermarket tuner that does. In my experience aggressive E85 tunes tend to have poor fuel economy. But it its power you're after you might be pleased with the results.
New User
Joined: Oct 2018
Posts: 23
Likes: 0
From: Oklahoma
E85 should be an excellent towing fuel, especially in hot weather. Ethanol is great for cooling the fuel/air charge and thus keeping air density high and reducing pre-ignition, especially under high load conditions. This is why many racers use E85 exclusively, especially in forced induction applications.
As Busa 1 Dave noted, the tune will be the final determiner of performance (towing as well). A factory tune may not take full advantage of E85's benefits but perhaps there is an aftermarket tuner that does. In my experience aggressive E85 tunes tend to have poor fuel economy. But it its power you're after you might be pleased with the results.
As Busa 1 Dave noted, the tune will be the final determiner of performance (towing as well). A factory tune may not take full advantage of E85's benefits but perhaps there is an aftermarket tuner that does. In my experience aggressive E85 tunes tend to have poor fuel economy. But it its power you're after you might be pleased with the results.
This morning, I just installed a couple of oil separator catch cans and decided to fill up the tank, for the first time, with E85/105 octane. I did a little test drive and noticed my normal 15.7 mpg average drop to 10.6 mpg. Also checked the can and it had about three tablespoon of clear, watery like liquid, with virtually no smell. I'm guessing it was Ethanol blow by.
So, once I install my new Volant CAI and BBK throttle body, I need to choose the 5-star tunes. There are two E85 tunes (performance and tow) and performance and tow tunes for 93, 91, 89 and 87 octane 100% gasoline.
So my question to any reader is this . . . What strategy would you choose picking five tunes with a mind toward around town performance, and towing a travel trailer in the Rocky Mountains region?
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