[slothman]

seems about right. within .5 to 1 MPG difference. I bet you if all the seats were taken out you could gain .5 to 1 MPG due to the weight.

 

[slothman]

All my seats, except the front two, are already removed.

that is quite unfortunate... LOL.

let's face it, these are basically heavy SUVs, they are not made to get good MPGs. Plus, it looks like you have some additional equipment, which it fine, but really negating the seat removal. It is what it is. But without a doubt, the computer will ALWAYS produce "false positive" MPGs. It is only positive results for the manufacturer . It is only there to make you feel better, when the results are far less. I understand you know this is true.

 

[slothman]

Well the seats are probably 150 lbs. Currently I may have like less than 50 pounds of stuff. I'm not too concerned about MPG. It's going to go down when I build my campervan, between stuff on the roof adding air drag and hundreds of pounds of extra weight.

every pound makes a difference. but also car maintenance, and tires. I have seen 1-2 MPG difference with chevron techron fuel additive. it all makes a difference.