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All those that use e85!?

Slo281

By Slo281
in Engines & Drivetrain

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Slo281 Enthusiast

Slo281

Posted
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Posted

Run E85 for 2-3 more tanks, then go back to E10. See if you still like E85.

I'll try it a few more times. seems the truck loves running on this stuff. I'm about a half a tank in and it's running good and I gave noticed the different engine sound u mentioned in the post above

I agree with pos vett

Care to elaborate ?

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joeglock40 Enthusiast

joeglock40

Posted
Posted

After a couple tanks, its more e85 content then your first tank of e85 since it still has regular e10 in it left over, and after running a couple tanks you'll be use to that feeling so if u swap to regular 87 or 89 then you'll notice how just the fuel change makes a decent difference, i imagine summer time weather will be even more drastic cuz e85 has a cooling effect as well like methonol injection. ..from what I've read at least

joeglock40 Enthusiast

joeglock40

Posted
Posted

Lingenfelter test :Gas (E10) Rating 355/383 E85 Rating 380/416 Gas Dyno 302/332 E85 Dyno 321/355 Gas O to 60mph 7.5 E85 0 to 60 6.96 Gas 1/4 Mile 15.94/90.7 E85 1/4 Mile 15.51/93.5 "Taking advantage of the ’14 model’s Flex Fuel capabilities, LPE dumped in some E85 and repeated its tests. The on-board sensor read 65% ethanol content, with 1/8 tank of E10 diluting the mixture, when the dyno read 321hp and 355 lb-ft of torque. This certainly seems in line with GM’s 380hp crank horsepower rating when using E85 (355hp on gasoline) as well as the subsequent acceleration tests. The 0 to 60 dropped to 6.96-seconds and the 1/4-mile time was nearly a half-second improvement (15.51 at 93.5mph). LPE recorded an average of 18.9-degrees of timing (up from 17.2 on gasoline), and a reduction in intake air temperature (7-degrees average) and engine coolant temperature (3-degrees average) or http://www.lingenfelter.com/LPEforumfiles/showthread.php?2248-2014-1500-Silverado-with-5-3L-L83-engine-work-begins for more good e85 stuff

DirtyMarcus Enthusiast

DirtyMarcus

Posted
Posted

87 is 2.09 and e85 is 1.55. Even if e85 was the same price I'd run it. The truck seems to run so much better with e85. I just did a trip from Austin to new Orleans and back and averaged 16.5mpg and hit up to 19mpg during some stretches of highway. That was with a kayak on my bed rack creating extra drag and loaded down with camping/fishing gear and 20 extra gallons of fuel to get me between e85 stations.

 

On 87 my truck drops out of v4 mode with the slightest bump of the throttle. It's also not as responsive.

 

I don't know what the people at Valero are smoking but their e85 prices are stupid. Usually 10cents cheaper than 87. I never buy it from them.

wildhunter Enthusiast

wildhunter

Posted
Posted

Have not tried e85 yet but I guess I will after reading this. where I am the 87 and e85 are 2.09. My question is how low should my fuel level be to start using?

 

 

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POS VETT Enthusiast

POS VETT

Posted
Posted

If you want the max effect, wait until the fuel level is as low as you're comfortable with. Otherwise, it doesn't matter, the PCM calibration will adjust accordingly almost right away.

wildhunter Enthusiast

wildhunter

Posted
Posted

If you want the max effect, wait until the fuel level is as low as you're comfortable with. Otherwise, it doesn't matter, the PCM calibration will adjust accordingly almost right away.

Thanks

 

 

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  • 3 weeks later...
mjj Enthusiast

mjj

Posted
Posted

I've become a big fan of E85 since getting my truck. It feels like it drives so well using it. I like the idea of it burning cleaner and cooler, producing more power, and that it's from the good ole USA (minus the politics behind it).

 

I just posted my entire mpg logs using it in another thread if anyone wants to see it is here:

 

http://www.gm-trucks.com/forums/topic/152976-2014-gas-mileage-mpg-topic/?p=1619068

Higgs Boson Enthusiast

Higgs Boson

Posted
Posted

Wish my 6.2L could run E85. Studies have shown E85 runs a lot cleaner than gas mixed with ethanol.

 

you can, you just need a tune for it.

Higgs Boson Enthusiast

Higgs Boson

Posted
Posted

 

It's not that easy. I believe there's also a different fuel pump and injectors and also a sensor to detect E85.

 

its that easy. no parts needed. i have done it to several cars. three of mine (including my C7) and 4 customers. like i said, you have to tune for it.

2014MallCrawler Enthusiast

2014MallCrawler

Posted
Posted

Im tuned for E85 and I love the extra power. I don't tow anything but E85+plus transmission tune = Fun. I do get about 1.5mpg worse than I do when I run 93. but WHO CARES! :-)

 

 

13-13.5mpg city on E85

14.5-15 on 93 octane

POS VETT Enthusiast

POS VETT

Posted
Posted

 

its that easy. no parts needed. i have done it to several cars. three of mine (including my C7) and 4 customers. like i said, you have to tune for it.

Does a C6 Z06 come with an ethanol sensor?

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