Towing any trailer your consumption is going to change , I noticed that when towing my enclosed full of gear , burned threw a tank a lot faster ,
and I only ran the truck once out of fuel to see how many Kms I could get after the low fuel light came on , my buddy who has the exact same truck said he could get 60 Kms after the light came on. No way so I tried it , and not even close ,
and I would never run a diesel out of fuel , all the work trucks I run are deseil nothing worse than when that happens .