Dodge Durango Forum II

Yeah, but it varies widely depending on other factors...

such as the weight of all the fluids (especially how much gas is in the tank), any cargo you're carrying when you use the meter (tools, tow spraps, battery cables, etc.), what brand and size of tires you use, any passengers that'll be in it when you use the meter (at least one - the driver!), etc., etc...

The accuracy of the G-Tech depends on inputing the actual weight "as tested" within just a few pounds. Your best bet is to find one of those drive-on/drive-off scales and actually weight it with the load as it'll be when you use the meter. Most of them will give you a weight within 20 lbs which would allow for some difference in the amount of gas in the tank without affecting the numbers you'll get too much.

I did this with my own 5.2L D, using the scales at a friend's business for weighting the loads of sand/gravel he sells, and with a full tank and me in it (don't forget you "will" be driving it) my total came out 5280 lbs.

Another item you need to consider is the road conditions where you intend to use the meter. To get an accurate assessment it should be as even as possible and level (i.e. no obvious up or down slope). Then, to cancel out the effect of any slope difference you can't see, make your runs in both directions and average them out.

I can tell you from doing my own runs with a G-Tech, the same numbers vary widely because of all sorts of "dynamic" variables that change as you're attempting to make the measurements.

Thu Aug 31