why don't you try 0 octane while you're at it

 

The real question is what kind of power you getting from that? I am sure the dyno machine can pick it up

 

Not sure why that matters?
Even a loss of a few HP is not going to matter with a 340 HP rated engine.
I drive 2k miles a month mostly on cruise control
The photo was taken a few weeks after purchase after filling up at WaWA and a 50 mile drive to work on cruise control with the outside temperature in the seventies.



Same trip last week after filling up except the temperature was in the thirties



The two weeks of dealing with the aftermath of hurricane Sandy with gas lines and short trips with going back to normal



Telcoman

 

I would love to see that kind of MPGs on my car. The G37 is better for that

 

I use 100% gasoline. Brand? Meh, I dunno. The place isn't even a chain. But my car runs great on the stuff, and I don't hvae to worry about ethanol blended stuff junking up after my car sit for more than a few weeks (which happens a few times every year).

Random note, my beater won't start hot with 'ordinary' gas, has to be 100% gas. It was built in 98. Ethanol blends weren't introduced until 99.