DKayS asked:


I have not checked out the owners manual yet (am at work surfing the net haha) so can anyone tell me if I can fill up my Tahoe with E85 gas if I have a half of tank still full or unleaded gas? Are there are rules to switching back and forth from these fuel sources? Thanks!!!
It is flex fuel, 2007 model. Looks like E85 is cheaper right now so I may go put in a half of a tank. Thanks so much!!

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3 Comments so far

1. Andy June 18, 2009 3:56 pm

   If your Tahoe is a flex fuel vehicle you can mix them with no problem.

2. G35_Tuner June 20, 2009 4:06 pm

   You should be able to mix it without a problem. I don’t think it has any rules about switching back and forth, just know that E85 fuel may be cheaper, but it does give you less gas mileage. That’s probably one of the reasons why its a lot cheaper then regular gas.

3. mdk68gto June 20, 2009 7:47 pm

   you should not have a problem, but look into the owners manual to confirm that idea.

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