I like Griots Garage sealant and cleaner all-in-one. Used it on my '99 4Runner and it really cleaned up the paint nicely. Sealant is better than wax because it will last a lot longer. But you'll still want to run the clay at first.
No. That was one way, mostly downhill. But I just drove to Mammoth from San Diego. It goes from sea level to about 7,000 feet. Driving through the desert with strong headwinds and a load of gear and mountain bikes in the bed, I averaged 22MPG the whole way. Cruise control seems to help a lot...
Just Finished driving fromSan Diego to Mammoth. 22 mpg average. Not bad considering all the headwinds and hills. Had a bed full of mountain bikes, fishing gear, and misc luggage, too. I'm happy.