Quote Originally Posted by VendeTTR View Post
Dual tune PCM from doubledip I think that's his username, I'm still yet to get one but when I get a bit more spare cash I will for sure. 2 tunes, run it low and fill up or drain the tank. Easy.
A flash tuner like an autocal is another alternative. That way you can have a few different tunes with varying % of ethanol content.