Hi All,      I once had a 85 Westy and it got about 21 to 23mpg at close to
sea level where I live. We took it back to Colorado and watched the mileage
and while were in Colorado it was getting 26-27.  I couldn't believe it. I
went through 3 tanks of gas there and there was no mistake in checking
mileage. When we came back down the normal lower mileage returned. I always
wondered about that.         Todd Francis