Quote:
Originally Posted by DarkMaroSS
Hey guys,
I’m as ignorant as one can be when it comes to using E85, but recently found I have a few gas stations nearby with E85.
I know about the flex fuel kits available for the LT1s and that you need to have the PCM tuned to turn this on and have the proper mappings for this.
My questions about the subject are:
1. Once the kit and the tune is setup, can you mix 93 octane and E85?
2. Do you have to empty the tank completely to use either fuel?
Anything you guys can elaborate on I’d definitely appreciate it.
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Once it is tuned you can mix 93 and E85. There is no need to drain the tank to run either fuel. The computer will be able to tell what you have in the tank and make adjustments accordingly. Just make sure you have a good tuner.