What mileage you getting with temps under 30 degrees ?

[kou]

if you have upgraded your car with performance parts and drive like you stole you will get pinging at higher rpm's and full throttle with 87 octane.if you drive like a grandma and your car does'nt get past 3500rpms use 87 octane all you want.toyota recommend 87 octane yes, but with a high compression motor and high rpms i would not use it. even the smart car recommends premium knowing you will get pinging with regular.

[BLAZINBLUEVITZ]

Originally Posted by 1stToyota

Don't use premium unless the vehicle's computer was tuned to run *Premium fuel only* at the factory.

first time i heard that one......

Originally Posted by kou

if you have upgraded your car with performance parts and drive like you stole you will get pinging at higher rpm's and full throttle with 87 octane.if you drive like a grandma and your car does'nt get past 3500rpms use 87 octane all you want.toyota recommend 87 octane yes, but with a high compression motor and high rpms i would not use it.

so what happens when using premium fuel and you drive it like you stole it......

[1stToyota]

Originally Posted by BLAZINBLUEVITZ

first time i heard that one......

Learn something new everyday.

[BLAZINBLUEVITZ]

Originally Posted by 1stToyota

Learn something new everyday.

yeah didn't know i can option my car to run "PREMIUM FUEL ONLY" from the factory. i wonder how much more that would have added to my payments......

[1stToyota]

Originally Posted by BLAZINBLUEVITZ

yeah didn't know i can option my car to run "PREMIUM FUEL ONLY" from the factory. i wonder how much more that would have added to my payments......

So sorry that my original statement zoomed over your head.

"Don't use premium unless the vehicle's computer was tuned to run *Premium fuel only* at the factory."

Was talking about cars like my old '05 GTO, expensive SUVs, SC'd Cobras, other SVT vehicles, etc... that came from the factory with *Premium fuel only* tunes.

[BLAZINBLUEVITZ]

Originally Posted by 1stToyota

So sorry that my original statement zoomed over your head.

"Don't use premium unless the vehicle's computer was tuned to run *Premium fuel only* at the factory."

Was talking about cars like my old '05 GTO, expensive SUVs, SC'd Cobras, other SVT vehicles, etc... that came from the factory with *Premium fuel only* tunes.

zoomed over not really, just trying to figure out why you like to compare a 4 cylinder to your v8 knowledge. its all good though......

[1stToyota]

Originally Posted by BLAZINBLUEVITZ

zoomed over not really, just trying to figure out why you like to compare a 4 cylinder to your v8 knowledge. its all good though......

Can't begin to guess what you're getting at or going on about. My original reply was to the guy that wanted to know about using premium or not in his Yaris, so I said use the 87 octane and save the premium for the vehicles that are tuned at the factory to run premium because their vehicles require it, our owners manual states 87 octane, not premium fuel required. Peace.

[kou]

the car will not have to retard the timing with premium letting you rev safely with no pinging and all of the power the motor can make.

[kou]

anyway i get an average 35mpg in the winter.

[1stToyota]

Originally Posted by kou

the car will not have to retard the timing with premium letting you rev safely with no pinging and all of the power the motor can make.

You're still talking performance results and driving fast for a modded vehicle on a thread that is about fuel economy?

[1stToyota]

Originally Posted by kou

if you have upgraded your car with performance parts and drive like you stole you will get pinging at higher rpm's and full throttle with 87 octane.if you drive like a grandma and your car does'nt get past 3500rpms use 87 octane all you want.toyota recommend 87 octane yes, but with a high compression motor and high rpms i would not use it.

A modded car and a stock setup are different.