E85 Flexfuel

Jetsetterak · Post by **Jetsetterak** » Mon Apr 30, 2007 3:07 pm

I have question regarding the Diablosport U7192 , for the performance tune that requires premium fuel can E85 (103 octane) be substituted for premium ( 91 octane). My vehicle is a 2007 GMC Sierra , 5.3L flex-fuel engine ,8th vin # Z. Thanks in advance

johan · Post by **johan** » Mon Apr 30, 2007 3:25 pm

Yes, the E85 functionality of your motor is retained using the programmer.

JONBOE · Post by **JONBOE** » Fri May 11, 2007 8:28 pm

I’m asking for me and everyone else regarding the Diablosport U7195.

Making a tune for the E85 Flexfuel?

Truck spec: 2003 Chevrolet Silverado, 4.8L Engine, and 8th VIN #V.

Thanks!

Post by **mikel** » Fri May 11, 2007 10:08 pm

JONBOE wrote:I’m asking for me and everyone else regarding the Diablosport U7195.

Making a tune for the E85 Flexfuel?

Truck spec: 2003 Chevrolet Silverado, 4.8L Engine, and 8th VIN #V.

Thanks!

http://diablosport.com/index.php?name=P ... pic&t=1416

JONBOE · Post by **JONBOE** » Wed May 23, 2007 11:55 pm

Funny ...

http://www.diablosport.com/index.php?mo ... ay&pid=112

So, when can I get a tune of the E85 from you guys at Diablosport.

I did get more information from Dynousa. $100.00 for a custom tune and I was told that I'm able to switch from Gas to E85 with no problem.
Good Guys…

Post by **mikel** » Thu May 24, 2007 11:30 am

JONBOE wrote:Funny ...

http://www.diablosport.com/index.php?mo ... ay&pid=112

So, when can I get a tune of the E85 from you guys at Diablosport.

I did get more information from Dynousa. $100.00 for a custom tune and I was told that I'm able to switch from Gas to E85 with no problem.
Good Guys…

When did that show up?
OK, well, there you go, E85 for the masses!

Thanks
Mike

bub · Post by **bub** » Fri May 25, 2007 6:56 pm

Don't E85 compatible OEM designs utilize some different sealing and O-ring materials in the fuel system? I thought there was an issue with ethanol degrading "conventional" O-rings and other rubberized seals, or is this just a false concern based on an old wive's tale?

bub · Post by **bub** » Wed May 30, 2007 5:49 pm

Mike -

You probably missed this post after Holiday as it was marked answered, but what are your thoughts on the fuel system materials compatability with E85 that I asked above...

-CKB

Post by **mikel** » Wed May 30, 2007 5:53 pm

All the info I have regarding the subject lead me to believe what you said at the end...old wives tale.

Thanks

dynometer · Post by **dynometer** » Thu May 31, 2007 9:06 am

All of our research shows that as long as the vehicle is newer than '92 to '94 (depending on mfr) we will have no problems with any component- The injector o-rings are viton and all other fuel lines are made from synthetic rubber, which is, for the most part, compatible with any ethanol. The natural rubber will erode over time, but this does not seem to be an issue on the newer stuff. There are ALOT of "local mechanics" that will tell you otherwise, but it is all heresay (on newer stuff) We've converted 600 of these vehicles to date, and more and more every week... There is a bunch of info on our other site, including a few engine teardowns with high mileage NON-Flex fuel vehicles
www.runE85.com
thanks
andy

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