I just got a sudden jump in mpg, with no change in driving profile.

Is the summer gas back?

BTW, what makes it summer gas anyways?

 

same here, i got 200+ on half a tank!

 

wow thats incredible

 

I'm definitely getting better MPG's too. I think winter gas has more ethanol or something. I got a 1.4 increase on my last tank and looks like a slight increase from that on this one too

 

omg so its not just me!!!! LOL

my rx8 hit 250 miles on one tank!!!! LOL

i think its because its hot and the gas expand??? i dont know

 

That might have to do with it, but also, hotter air means less dense air, meaning less fuel to keep the same air/fuel ratio.

Though, I did notice too, that I was WOTing more, and still got the same gas mileage, so I guess I'm getting better gas mileage if I don't WOT as much .

 

I've also noticed slightly better mpg lately too.

 

Does it even matter? Gas price is higher.. I am playing 50+ per tank.. really sux.

 

lol @ this thread. With all your testimonials i believe it, i guess. Havent kept track of MPG lately. I'll let you know in a few days.

 

of course it does.. do you think people would care about good gas mileage if it cost $1 a gallon?

 

Summer gas = Gas expands when its warmer so you getta "fuller" tank. Make sure you dun fill it to the top, cause it'll overflow when it gets really hot.

 

Thank God if it does! Winter mix sux!

 

sigh...got go another 20 miles drive to school now...

 

yup, exactly. I havent driven my WRX in a week. Ive been driving my civic to work everyday.

 

I get to drive 60 miles a day