Are you saying you think that the fuel in Cali gives you less MPG?
That is what I would be thinking. I'm wondering if the additives in California gas to burn cleaner actually make us burn more gas. Makes sense because the air standards here are stricter.
I brought two vehicles back from colorado when I moved home to california after my enlistment. I had my 49 state NA1 nsx and my california model 4.0 V6 Ford Ranger. I also got a chance to drive both vehicles down from colorado to california.
Regardless of gas station. What I noticed in my ranger was, in Colorado I could rely on an average of 20 mpg 50/50 combined city and highway, 23 mpg highway, and my brother even got 25 mpg highway regularly in Utah. He drives more "cautious" than I do though. Same truck in california, I get ~ 20 mpg highway. 3 mpg loss.
NSX also lost about 3 mpg compared colorado to california. Even with cruise control. Not to mention I set cruise here at 65-70 mph and in colorado 75-80 mph.
A similar comparison in colorado, winter fuel vs regular fuel.
The argument could be altitude, and that make sense. However what throws that idea out the window is that I got my all time best fuel economy in driving from Houston to Colorado. This is where I EASILY got 29 mpg highway going atleast 85-90mph. NO CRUISE CONTROL.
Orrrr... it just proves that going faster is more fuel efficient! Science wins again! :biggrin:
Sometimes I wonder about that, like if 80mph is actually the sweet spot.