what is the average gas millage in the off road

not good, as when you are "off-road" you are going slow and you engine is "reving" but you are really not going far/anywhere, but depends on the trail. I go "off-roading" as much as I can and I normally use a tank/a day, (5-8 hours out in the bush). It is a great hobby and can be lots of fun, but dont ever go out with just one truck, if you get stuck, it is a long walk back and if you get hurt there is no one around the results can be bad. Play safe and have fun.

i think he means the off-road package if so depending on the engine and rear gears you get and also how you drive, my 99 was a 3.0l with 4.10's got around 15mpg, my 02 is a 4.0L with 4.10s and i get about 18mpg on the highway and less around town, while offroading if you care about mpg while offroading you need a new sport.