2018 gt E85 question and 3.15 or 3.55s

[moto111]

So I have never done E85 on anything before but I know they usually require fuel upgrades along with a tune. does the 18 just require a tune and then I can run E85? Obviously we don't know how safe it is yet lol

Also 10speed 3.15 vs 3.55 I know with the 6r80 the 3.55 was the way to go. how ever with 10 gears is 3.55 still the way to go or would 3.15s be wiser? I will be going procharger if the car sticks around for a few years.

Sponsored

 

[gmupatriot]

So I have never done E85 on anything before but I know they usually require fuel upgrades along with a tune. does the 18 just require a tune and then I can run E85? Obviously we don't know how safe it is yet lol

Also 10speed 3.15 vs 3.55 I know with the 6r80 the 3.55 was the way to go. how ever with 10 gears is 3.55 still the way to go or would 3.15s be wiser? I will be going procharger if the car sticks around for a few years.

I am getting a 2016 GT with 3.55 as well + its an Auto. I wish to help but I do not have hands-on experience with the car yet to give you a definitive answer.

Good luck!

 

[bmatt]

So I have never done E85 on anything before but I know they usually require fuel upgrades along with a tune. does the 18 just require a tune and then I can run E85? Obviously we don't know how safe it is yet lol

Also 10speed 3.15 vs 3.55 I know with the 6r80 the 3.55 was the way to go. how ever with 10 gears is 3.55 still the way to go or would 3.15s be wiser? I will be going procharger if the car sticks around for a few years.

the 2015-2017 didn't require any upgrades to support a standard E85 tune, only if you upgraded the intake manifold. I'd imagine it's similar on the 2018. I believe it just required injector upgrades to support intake manifold upgrades.

 

[z31maniac]

[ame]

Sponsored