the big mPG Question
I don't believe it's RPM- It's speed. I could do the research, but aerodynamically, the best gas mileage will come 55-60 miles per hour. Above 60, it's air resistance that gives the poor gas mileage. I know there is a lot of research with my other vehicles (such as my ford F150), as to what speeds, not RPMs...
it's tough to discuss the gas mileage aspect. For some odd reason, the cars get much much better gas mileage the longer you drive them. Now at 100 miles, I was getting like 16 MPG on my compass. Now at 10k miles on the car, I'm getting 30 miles per gallon on the highway easily... I know many other patriot/compass owners have said the same thing. You will get worse gas mileage at first, but you will get much better than stated gas mileage once you break that bad boy in!
AND i have a CVT automatic 4x4. the 4x2 should be that much better..
So yes... I believe the car should be rated higher MPG than stated. Don't be discouraged when it's lower at first.
01 Jeep TJ
Plus 9 other less durable vehicles from Italy, Germany, and 'Merica