I am a newbie here but I have been reading for several days and most everyone can only get maybe 18-20 mpg out of a 24v. Trying to figure out how my truck gets such good mileage. Can get 24+ with a steel Knaphiede bedcover that wieghs 1200#. I AM NOT COMPLAINING!!!!!! Just trying to figure this out... No electronics on truck. tires 245/75-16LT 3.55 auto

Not bad at all...

Just to stir the pot, I weight about 11k (rigged out welding tk) Before the blue chip vp and nothing changed 14.75 avg. best 15.25 with EZ and rv275 - 1st blue chip vp 15.0 no matter what, up hill, in town, 15 and no mods. . 2nd blue chip vp 16.0 avg. I have got 17 on flat at 55 and no modsThis new to me eng. I am going to install, guy said he avg. about 19-20 on a 3/4 ton 2wd stock everything auto trans.I am curious why a rattling truck with 252k that weighs 11k gets what it does. would this dully get 19-20 if it where stock? I bought it and had it losded out before I could check mileage.New to me eng., I think I am going to run no ez and no ddp50hp and see what happens. I really think I need to put the blue chip pump in while it's easy though.