08 GT slow

[MikesChargedGT]

So i threw a little 89 in my car and a couple days later the pedal felt less firm and there was a huge impact on low and mid range, what gives??

[BaSohol]

Originally Posted by MikesChargedGT

So i threw a little 89 in my car and a couple days later the pedal felt less firm and there was a huge impact on low and mid range, what gives??

Maybe just bad gas, I always put in shell or bp 93

[Charles.young10]

Originally Posted by MikesChargedGT

So i threw a little 89 in my car and a couple days later the pedal felt less firm and there was a huge impact on low and mid range, what gives??

Do you have a tune on the car? Probably bad gas though..

[MikesChargedGT]

I put half a tank of 91 instead of 87 on the stock tune out of curiosity

---------- Post added at 03:25 PM ---------- Previous post was at 03:24 PM ----------

91 from chevron instead of the off brand 87

[Charles.young10]

Originally Posted by MikesChargedGT

I put half a tank of 91 instead of 87 on the stock tune out of curiosity

---------- Post added at 03:25 PM ---------- Previous post was at 03:24 PM ----------

91 from chevron instead of the off brand 87

That shouldn't be an issue.. Unless you mixed it, that could cause it to "feel" like a lose of power... Still not a big issue or harmful if you did..

I would just caulk it up to bad gas..

[DDTCM]

Take her out and beat it out of her......that will teach her.

[Lalayla]

Originally Posted by DDTCM

Take her out and beat it out of her......that will teach her.

Lol!

[MikesChargedGT]

I took her out today and drove her like a pissed off teenager and now shes back to normal!

[Solomo2]

Originally Posted by MikesChargedGT

I took her out today and drove her like a pissed off teenager and now shes back to normal!

That always helps and is fun as hell

[Borii]

Probably bad gas. A non tuned S197 has ZERO TO GAIN from anything higher than 87. It won't hurt anything but it isn't adding any secret HP.

[MikesChargedGT]

I was just curious because some cars adjust to higher octane

[Borii]

They do adjust with timing advance or what not but usually it simply that, adjusting. Our cars DO adjust, just you won't see or feel anything of value.

[BaSohol]

Originally Posted by Borii

They do adjust with timing advance or what not but usually it simply that, adjusting. Our cars DO adjust, just you won't see or feel anything of value.

Perhaps better gas mileage

[MikesChargedGT]

Originally Posted by BaSohol

Perhaps better gas mileage

I saw a good increase in MPG

[Charles.young10]

Originally Posted by MikesChargedGT

I saw a good increase in MPG

The increase in MPG makes up for the extra cost it pretty much evens out, if not a slight "cost saving" edge towards 91 octane