scorpio_vette
NAXJA Forum User
- Location
- Milwaukee Wisconsin
i know the general "how to improve your gas mileage" drill, since i try to sell it to people daily at work.
but this one has me a little stumped.
i have a 95XJ 4.0L, AW4, 3.55 w/31" tires.
beginning of the year i hydrolocked my engine, so i got a new one out of a 94grand cherokee and cleaned it up and re-sealed it. after the engine swap i was getting about 20mpg on the highway and 14-15 in the city.
now for the last few weekends i've been driving to a friends farm 2.5hours away to go wheeling with him. every time i would go there i used just under 1/4 of a tank each way with the cruise control set at 60-65mph.
but these last 2 weekends i used almost 1/2 tank each way with the cruise set at 60-65mph. so i ran my mileage, and it seems that my jeep dropped from 20mpg (on the highway) to 13mpg (on the highway).
i do a tuneup to my jeep EVERY year (plugs, wire, cap, rotor, belt, etc......mostly because i ride my jeep very hard, and like to know the condition of things).
but what would cause my mileage to drop 7mpg in 1week, and then stay so consistent??? i fill at the same gas station every time. the jeep runs great, sounds normal, and no check engine light or other weird indications.
but this one has me a little stumped.
i have a 95XJ 4.0L, AW4, 3.55 w/31" tires.
beginning of the year i hydrolocked my engine, so i got a new one out of a 94grand cherokee and cleaned it up and re-sealed it. after the engine swap i was getting about 20mpg on the highway and 14-15 in the city.
now for the last few weekends i've been driving to a friends farm 2.5hours away to go wheeling with him. every time i would go there i used just under 1/4 of a tank each way with the cruise control set at 60-65mph.
but these last 2 weekends i used almost 1/2 tank each way with the cruise set at 60-65mph. so i ran my mileage, and it seems that my jeep dropped from 20mpg (on the highway) to 13mpg (on the highway).
i do a tuneup to my jeep EVERY year (plugs, wire, cap, rotor, belt, etc......mostly because i ride my jeep very hard, and like to know the condition of things).
but what would cause my mileage to drop 7mpg in 1week, and then stay so consistent??? i fill at the same gas station every time. the jeep runs great, sounds normal, and no check engine light or other weird indications.