I'd take 3.89/gal any day.... it's over $5/gal here in Toronto area.
I'm on my 6th tank now, was getting 20 - 22 mpg (US) for the first 4 tanks with 0% highway. About 20% highway on the 5th tank and I got 25mpg.
Drove about 300km (190 mile) highway on the 6th tank and it's still over half tank with AC blowing half the time (normally, I only get a bit less than 300 km at the half mark). So I think I should get somewhere between 26 to 28 mpg on the 6th tank. (it's at half mark this morning with 360 km, that's about 70 more than usual)
So much happier now comparing the 20-22mpg for the first few tanks....