See above about the $5.80 between filling up with regular vs premium. I did the math, i still wonder if i can put regular in it, but in the long rin i use premium because it is as cheap.

 

Filled up with Ethanol Free Premium again. I love when I get a chance to do this, the car runs more smoothly, better mpg's, and feels better. But what is that stuff up there the $80 for 5 gal, wow, that is F'in NUTS!!! That is $16 per gallon. That stuff better make my car literally fly through the sky.

 

For me, a little against the conventional wisdom, I have been basically using only regular for the last 3-4 years. Recently, in my 'hood, the price differential between regular and premium is only twenty cents, I've actually started using premium. At least for the time being. The car does seem to run better. The (auto) tranny shifting seem smoothier and more crisply. My $0.02.

 

On a global perspective, I'm living here in Singapore with my G waiting for me back home.
Premium here at Shell, is $2.35 a liter. @ 3.785 liters to the gallon that about $8.90 a gallon. Prices are like this all over APAC and EMEA,
Globalization is here folks, won't be long before we're saying, I remember when gas was cheap, we were paying $5.00 a gallon...
Oh, I haven't seen a G35 yet here on the island..

 

Still using premium =/ Sucks because all of my driving is in the city and I get crappy mpg. D:

 

Still run premium.. I probably shouldnt though, I never take the car over 4k RPMS