re: 2007 Acura MDX - transmission and fuel consumption

We will be reviewing the 2007 Acura MDX this week, and should have a review published by the end of next week. We will take a look at the specific problems you describe.

That said, many cars with six speed trannys will cruise at 60mph or above in sixth gear with RPMs running barely above idle. If you're seeing 2,000 RPM at 60mph, it's only going to drop down to about 1,600 RPM when you coast. The sixth gear is designed to save fuel. But if the engine's running at 3,000 RPM at 60mph, and it stays above 2,500 RPM when you coast, then you might have a problem.

I haven't looked at the tech specs for the MDX yet, but some trannys have 'smart' technology, and they try to adapt to your driving style. It may be that the tranny needs more time to learn how you prefer to drive, or is just guessing wrong.