What octane fuel are you running?

[Nis Mo Z]

How much E85?

On the entire tank I do 2 gallons and the remaining 14.2/4 is 93. Or if I put in 4 gallons then 0.5 gallon of that must be e85, half a tank 7 to 1, and 3/4's of a tank 1.5 gallons of e85.

 

[zeroptzero]

Your dealer flat out lied to you. The Z is 91+ per the owner's manual. Putting 87 in would be just asking for reliability/durability problems.

Thanks for the reply, yeah they are not coming across as the most reliable people when it comes to this car, they are a bunch of dopes to be honest, thanks for the info and help.

 

[Nis Mo Z]

Wait, weren't you the one just complaining that the Trucontrol sucks on another thread?

I never said it sucked, only that many people have issues running it but the reason for their issue is simple, more boost and insufficient stock cooling is a recipe for disaster.

 

[KrackaC8]

Thanks for the reply, yeah they are not coming across as the most reliable people when it comes to this car, they are a bunch of dopes to be honest, thanks for the info and help.

You're welcome! At least car salesmen and service advisors are all the same/predictable regardless of boarders!

 

[5amp5on]

Your dealer flat out lied to you. The Z is 91+ per the owner's manual. Putting 87 in would be just asking for reliability/durability problems.

I cannot imagine the performance diff with 87, I felt it in the butt gauge on the one occasion I had to use 91 due to a road trip. Maybe it was in my mind but I don't think so.

 

[zeroptzero]

I cannot imagine the performance diff with 87, I felt it in the butt gauge on the one occasion I had to use 91 due to a road trip. Maybe it was in my mind but I don't think so.

I have a sneaky suspicion the dealer will give me the car with a tank of 87. I have zero trust in them.

 

[KrackaC8]

I have a sneaky suspicion the dealer will give me the car with a tank of 87. I have zero trust in them.

They absolutely will. Ask them to please not fill the tank.

 

[KrackaC8]

I cannot imagine the performance diff with 87, I felt it in the butt gauge on the one occasion I had to use 91 due to a road trip. Maybe it was in my mind but I don't think so.

A dealership put 87 in my C7 once, and I had to run 91 on a few occasions in both my C7 & C8... Horrible.

 

[zeroptzero]

They absolutely will. Ask them to please not fill the tank.

Good idea, I'd rather have no fuel than cheap fuel, lol. Or I will have to buy a bunch of octane booster