Attention: TDR Forum Junkies 
What all do I need to start looking at to find out where my fuel mileage is going?
In the last 6 months I have watched my mileage go from the 18's in the city to my last fill up at 13. 6. and 20's on the highway down to the 16's.
I have had 2 count em, 2, LP's replaced and the VP44 in the last 4 months (under warranty
). The first LP dropped my mileage about 1. 5 mpg. This is the first fill up since the VP44, and I dropped another 1 mpg.
I keep my tire pressures at 55 front and 45 rear. The tires are Futura Dakotas 235/75 (fairly aggressive, put on in October).
I pulled the front tires and the brake calipers to make sure that they were not seized. The left side pads were worn uneven (READ - the top ends were 1. 5mm thicker than the bottom). I cleaned both the calipers and the pins that allow the caliper to slide back and forth, and fully compressed & pumped the pistons a couple of times.
I clean the IAT about every 1500 miles (thanks to the exhaust brake).
The EZ is kept on level 2.
My driving habits have remained the same, with the exception of about 4 minutes of idling each day for warm ups now that it is cold. I accelerate moderately (READ - I roll onto the throttle as the rpms increase) and shift at 2000 - 2300.
I acquired a camper shell sometime around the time my mileage started dropping. I think it was about three fill ups after the shell that I noticed the drop had started. Would a camper shell cause that much drag? I was under the impression that it was better than an open bed.
Anything that I missed?
In the last 6 months I have watched my mileage go from the 18's in the city to my last fill up at 13. 6. and 20's on the highway down to the 16's.
I have had 2 count em, 2, LP's replaced and the VP44 in the last 4 months (under warranty
). The first LP dropped my mileage about 1. 5 mpg. This is the first fill up since the VP44, and I dropped another 1 mpg. I keep my tire pressures at 55 front and 45 rear. The tires are Futura Dakotas 235/75 (fairly aggressive, put on in October).
I pulled the front tires and the brake calipers to make sure that they were not seized. The left side pads were worn uneven (READ - the top ends were 1. 5mm thicker than the bottom). I cleaned both the calipers and the pins that allow the caliper to slide back and forth, and fully compressed & pumped the pistons a couple of times.
I clean the IAT about every 1500 miles (thanks to the exhaust brake).
The EZ is kept on level 2.
My driving habits have remained the same, with the exception of about 4 minutes of idling each day for warm ups now that it is cold. I accelerate moderately (READ - I roll onto the throttle as the rpms increase) and shift at 2000 - 2300.
I acquired a camper shell sometime around the time my mileage started dropping. I think it was about three fill ups after the shell that I noticed the drop had started. Would a camper shell cause that much drag? I was under the impression that it was better than an open bed.
Anything that I missed?
