I have a friend that has a sc cobalt and had this idea till he got tuned for the correct gas since his an mine are for 93+ tunes.. That for every 4 gal of 91 you can add 1 gal of e-85 and have close to a 94-96 blend.. Any risk or any thought or opinions would be cool.
Im currently using lucus octane booster an it actually works well just at 10 a bottle and finding/having it when i need to fill up is the only hassal..

_________________

04 Comp G... ON METH 3.5-3.6, Headers, intake, Overkill/street tune, gxp brakes, and every suspension do-dad lol
OLD PB 1/4mile in 14.07 at 98mph!! 2.0 60ft

yes, you can blend it and you shouldn't have a problem, the most common E type gas around me any how is E10, being i believe 85% gas and 15% ethanol, only problem i would se if possibly needing a bigger fuel pump/injectors, been kinda looking into it cause i wanna swap a ranger to E85, only thing they suggest when playing with ethanol is bigger fule injectors bigger pumps, and possibly swapping out gas lines because of the alchole in the ethanol eating out older lines, although i don't imagine you'll have that problem, i'm sure AJ can also chime in i believe he runs a GTP on it if i'm not mistaken, hope some of that helps

_________________
BRAP BRAP BRAP nuff said

Was overkill not able to get you a tune for 91 octane?

_________________

You should be able to run a tune on 91 octane with pulley size you want.

_________________