# E85 Ethanol vs 93 Pump Gas **URL:** \ **Category:** Shift518 Automotive\ **Created:** [February 27, 2008, 7:54am UTC](https://forums.speedlife.net/t/e85-ethanol-vs-93-pump-gas/235817 "2008-02-27T07:54:15Z")\ **Posts on this page:** 1\ **Showing post:** 77
**Author:** ![HKSPOWEREDGTR](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/hkspoweredgtr/32/6704_2.png) [@HKSPOWEREDGTR](https://forums.speedlife.net/u/HKSPOWEREDGTR)\ **Post date:** [June 13, 2011, 6:26am UTC](https://forums.speedlife.net/t/e85-ethanol-vs-93-pump-gas/235817/77 "2011-06-13T06:26:15Z")
> [@so i get a notice in the mail today..](https://forums.speedlife.net/t/so-i-get-a-notice-in-the-mail-today/42974/7): > > I keep seeing threads with questions about ethanol so I’m bumping an old thread again but it is a sticky. Now, myself as well as many others on shift are using E85. I would like the E85 buddiez to chime in with the make and model they have converted to E85. You are welcome to share experiences as well. 2010 GT-R Premium Edition. Performance Mods: 3” Big MAF Dual Custom Intakes, AMS 90mm Catless Downpipes, HKS 90mm resonated midpipe & exhaust, Dual Aeromotive 340 Fuel Pumps, ID1000cc Injectors, Custom E85 tune. I switched to E85 in early March 2011. I had already done two rounds of mods and was still wanting more power, so I contacted my tuner about a turbo swap. Knowing my goals, he suggested I try switching from 93-octane to E85 with my existing mods first…then see if I still wanted to do the turbos. Sure enough, E85 transformed the car and I’m no longer considering turbos. I also no longer get sut on my lower rear valance like I did (catless) on 93-octane. Down sides are: Cold starts, averaging 12mpg, on full-boost 1st & 2nd gear are now useless, tracking the car means bringing 5-gallon gas cans with me now. --- _[View the full topic](https://forums.speedlife.net/t/e85-ethanol-vs-93-pump-gas/235817)._