Originally Posted by afd23a
^^^This. You can cruise well over this if you want but the 4 banger is more efficient run just below 2500 RPM at cruise in my experience. Enough power to take hills and low enough RPM to not suck fuel on the flat stretches. I've taken mine on many trips where I cruised between 70-75 but more recently I've been keeping it between 65-70 for the increase in fuel economy. It's a pretty solid engine.
The MPG difference is astounding.
My worst tanks have all been, with only a couple of exceptions, on the two trips I took to Texas. I don't get up to the legal limit of 80 in New Mexico and Texas.... Best I'll do is put the needle on 80 which is about 75 on the GPS.
At that, I'm running a solid 22mpg.
I'll do worse than 22 on some trips home from work when traffic is at it's worst, but those are 45-mile shots and are averaged out by the 65-70 MPH trips to work in the morning, where I'll average 24+, bringing my tank totals to the typical mid-23 to 25 that you find in my Fuelly link.