obc was reset. Texas Hill Country was hilly, the rest of Texas and a sliver of New Mexico was flat, Colorado straight up i25 varied of course. AC all the way mostly sixth gear with some long stretches of cruise control. If you can get close to 40 mpg in an MCSC, I want to go to your driving school!

 

Don't forget that his car isn't fully broken in, too. Our mileage increased about 2 mpg about 1500 miles into ownership

 

Actually, we started the trip at about 5000 miles on the odometer. pretty broken in, no?

Our very first 300 miles, driving back from Arlington after taking delivery, was our mileage personal best. Even with the extreme and frequent speed variation, we got 33.1 mpg as per on board computer. Hand calcs then and ever since show it to be between 1 and 1.5 mpg on the optimistic side.

For a loaded down MCS convertible, old school supercharged engine, AC on alll the way, I think 30-31 mpg is pretty good.

Can I do better?

 

I think you're doing about as well as you can, given the circumstances...

 

It's a rough life.

 

Definitely wax if you can before leaving. We took a big trip in ours which was only a few weeks old and it already has faint but seemingly permanent bug marks in the black areas.

 

We do a lot of miles, all over the US. All the suggestions posted are great. Yes, a small fire ext is a good idea. I wouldn't carry a gas can though. Even though I have MINI road service, I have found my cell-phone add-on road service to be outstanding. Fantastic response, covers any vehicle you are in, and only about $4/month.

Also, we find covering long distances goes best when we switch driving every 3 hours, before the driver starts to get tired.