TDI4BY wrote:
I am wondering if F31 or F37 actually help the mileage because I can't get anywhere close to 30MPG's?
It was only me and my 45# dog riding in the Libby starting at 9100 feet and droping to 1300 feet so you could say I was going downhill. Having said that on my previous trip up I hand calculated (cuz I don't have a fancy on-board mpg thingy) 30.5 mpg from Phx to Cortez but I was carrying quite a load of tools and had my 50# bike hitch with a 32# bike hanging off the back.
My previous best mpg (30.

was after filling (the darn pump nozzle didn't shut off so it was real full) up in Telluride and driving all the way to Phoenix. This was May 06 prior to having any recalls done.
I noticed a slight decrease in power with the F37 at first but after about two weeks of driving it seemed just as zippy as pre F37. Just my observations. Travelling up some of these grades on the way to CO the Libby still stays in 5th unless I have the pod and two bikes on top with two bikes hanging off the back, two kids, two dogs, two cats and two adults with all the stuff we need for two weeks of vacation. I'll have to photo the affair this year and post it!!!!
Gary