[shaggyusm]

I've been running 87 since I got my 07 Crew brand new 10 months ago. The dealer even filled it up with 87 for me twice (once when I bought it and again for sending in the survey). I've never had any problems with pinging or knocking. I don't tow or haul anything so it may be an issue for those that haul stuff. I don't know. In mixed driving I get 20.5 - 21 mpg. Almost strictly city driving I get 19 if I'm careful on the gas. I've only made one long trip in it so far (180 miles each way or 360 round trip) and on that trip I got 22.85 mpg (pretty much 23). And that's with driving about 85-ish the whole way. I've actually gotten as high as 24 doing mostly 65-70 mph on the interstate.
One thing I've noticed about my truck though (and it may be the variable valve timing) is that if I'm gettin on the gas hard from a stand still, when I hit about 3500 - 4000, I get a boost in accelleration. It's not HUGE but it's definitely noticable. Is this Variable Valve Timing kicking in? I know that in Hondas, the VVT doesn't kick in til almost redline. Thoughts???
Oh, and I've never had the timing advance done. I leave that up to the ant-knock sensor. That's what it's for.