2005HHRauto

Yes...

8 gallons of E10 91/93 gasoline + 8 gallons of E85 = E47

The Math:
8 x E10 = 80
8 x E85 = 680
80 + 680 = 760
760 divided by 16 = 47.5 or E47.5
And we just call it E47...

It's a silmple half & half mixture, that's easy to remember
You don't have to be 'dead' accurate on this & you will might be a gallon or two off at 1st, but the ECM will take care of it.
BUT with each fill-up AFTER you 1st mix, be it full or partial, do a half & half mix.
You will know how much you need to fill-up by knowing what your gas gauge is telling you.

Each 'mark' on the gauge is appox: 2 gallons, so if your down 6 'marks' = 11 gallons total needed, 5.5 gallons of E10 91/93 gasoline + 5.5 gallons of E85
2 'marks' = 3 gallons total needed. 1.5 gallons of E10 91/93 gasoline + 1.5 gallons of E85
8 'marks' = 15 gallons total needed & you must be empty...
Remember you don't have to be 'dead' on accurate.
If I think that I need 8 gallons total I'll go to the 1st pump open, be it E10 or E85,
I'll then put in 4 gallons, then I'll go to the other pump to completely fill-up.
Maybe it will be 4, or maybe it will be 3, or maybe it will be 5.
Doesn't matter as you're close enough.
Over time you will grt real accurate, & really get to know what your gauge is telling you.


I knew I got that from somewhere...
You are sharp...

drummerboy0088

All good to know. There's an e85 station not too far from me. Might have to give this a try when I get HPT!

2005HHRauto

You can do it now., no need for HPTuner..

paperboy72

so stock GMS1 tune you can mix half and half WITHOUT HP tune? wow didnt know that...i think i had you send me your e47 tune for HP, i just have never got a chance to mess or load it in. really bad of me... i got an HP tune suite from a past member for free and still have yet to use it