[big Fit]

Originally Posted by Spule 4

Base, 5 speed, stock tires, A/C on occasionaly.......

33.5 first tank (mostly city, what was in the car when I bought it, so test drives, dealer putzing around, etc)

38.9 second partial fill (all highway)

Both were miles driven/fill up and not doing an "over fill" stunt.

Everyone burning 87 octane? I generally don't, but the owner's manual claims the car can use it, so I am trying it for now.

I ran super in my Toyotas and Suzuki Swift, plus in my Volvos and Mercedes in the past, the increased mileage made worth the extra costs of $0.10-$0.20a gallon.

I dont know everything about fuel so teach me on this if you can. What I have read about gasoline in the united states is that besides having additives the main difference between regular unleaded and super unleaded is the flamable range limits. Some cars require different flamable ranges because of design or tuning. One symptom for some automobles is running poorly or preignition. I did not know you could get better mpg by upgrading from regular to super unleaded. Also does the cost make it wort it? Besides owning a fit I own a rotery powered second generation rx-7 which I always burn regular. I save money by doing this and it runs great. I have even been able to acheave an impresive 25mpg on the freeway. To put it in honda Fit terms it would be like getting the news that you got 45 mpg in us gallons. thanks for your time and i look forward to reading the replies.