I'm sure that is the reason you get such great mileage. 23 @ 70-75 just seems so unbelievable it must be due to a gasoline additive. Why not double it and get 26-29 mpg? Better yet, pure 2SO. Should get 100mpg or more!!! :hehe:I always add a little outboard oil every fill up
Idk how hard it would be to make fit but the new half ton ford trucks have a huge air dam, might check those out.It did. I guess I misunderstood jeepyr -- I thought he'd found/fashioned something a little taller. I've always thought the stock air dam doesn't go down enough to clear the air around the crossmembers and suspension. Kind of curious to A/B test it.
Then why mention it?never said the oil was the reason . Dont put words in my mouth . Thats what the calculator came up with . right or wrong, i really dont care if you believe it or not . some people act pretty tough behind a keyboard.
It does do that as well, but it also cleans up the airflow across all the rough/weird surfaces of the underbody, and pushes the air out to the sides instead of going under. Most of the ecomodder-types consider a front air dam to be almost as good as a full belly pan (with obviously, a lot less maintenance issues). That's probably closer to the truth on vehicles _waaay_ shorter than my ECLB, though. Basically you add a couple square feet of frontal area in exchange for a pretty good reduction in drag.My understanding is that it's main purpose is to create a low pressure area under the engine which will increase flow through the radiator.
Tracking fuel purchase and mileage over a long period of time would seem to be the only way to get close apprx of mileage. I once told a friend I would trailer a vehicle for fuel cost. Not that much distance but hard pull on a warm day.Filled before I left and when I got back. As I remember got better than 20mpg. What I didn't figure was temperature of fuel in the tank. It had gotten pretty warm. My buddy got away cheap. Seems you could possibly get better mpg in hot vs cold weather for that reason alone plus that would vary by how much is still in the tank.
As far as I'm concerned it is the only way. Too many variables affect one fillup to one fillup. Add to that the human tendency to round up, dismiss a poor tankful mpg, plus brag about how great your engine performs and a truck that really only is getting 13 all of a sudden is reported at 15 or 16 while towing. There is a truck stop in MT where the pumps are on a slope. I once filled up there going up slope, then since there wasn't any traffic, did a u-turn and filled up on the down slope side of the pump. A little over 2 gallons more was added. So if I had towed a trailer 300 miles and put 20 gallons in the result would be 15mpg, a number I see frequently in mpg threads. However, 300 divided by 22 gives 13.6, which doesn't appear to be a brag about number. Tow that trailer 2000 miles, then you know what kind of mpg you are getting. Then round up to the nearest whole number, add one or two, and post it on a thread. Almost everyone does.Tracking fuel purchase and mileage over a long period of time would seem to be the only way to get close apprx of mileage.
agree a buddy has a chevy gas half ton and gets 16-18mpg. he hooked to a goose neck cattle trailer hauled some loads and got 8mpg and had no power doing it. if you are going to pull full time you need a diesel or a big gas engine. the big gas will still get around 8mpg.The true difference is towing. .