Is there any hope?

[pmistel]

I am going to buy one of these

http://groups.msn.com/TREKTracks/tre...to&PhotoID=576

It's a shoebox shaped 28' RV. Does anyone see anything that can be done to help? They claim 15 mpg. I am going to run it on waste vegetable oil, my fuel will be free but it will be hard to fill-up for free on the road. That's why I want better MPG. I plan on putting in as big a tank as possible in it, maybe 200 gallons, which at 15 mpg will get me to Florida and back, but every little bit will help.

I was thinking airtabs on the back?

I will get it on April 10th

Peter