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Gas Mileage John 1-22-03  
73 Dodge 18 ft. RV 360 eng TF6 Trans. 410 Diff. 9 miles to gal. Will a higher speed differental or a over drive transmisson help.If so what kind.
Re: Gas Mileage Tom 1-23-03  
It would take a long time to recoup your overdrive investment at a mile or two per gal. The diff. would help if your not climbing a lot of hills.
Re: Gas Mileage aaron 3-7-06  
Whats the gas mileage for a 2001 gmc 3500 van
Re: Gas Mileage Doug Mercer 1-24-03  
Nine miles per gallon i would be making handsprings for that i get 5 with a 96 rexhaul 460 ford 33 ft ive looked at them all and nobody will gaurentee any increase in gas milage but increases in tourque etc. you can buy a lot of gas for a couple of grand or more that you will spend for the upgrade if your looking for performance or towing or hills etc then look at this stuff
happy rv en
Re: Gas Mileage jd 1-25-03  
Just for comparison, we had a 71 Dodge B300 window van. Replaced 318 with 360, had TF8 (A727) trans and 3:54 full floating axle. Running 8.75R16.5 C tires, we got 12.5 at 60mph. You're no doubt heavier, stiffer tires, and may drive faster. I tuned and tweaked, took rotation of the earth into account on MPG, never could do any better. Not sure you have much to work with. The B100 panel vans with 318 could get up to 18. God Bless, jd
Re: Gas Mileage john henry 7-26-05  
I have a 05 3/4 ton surburban,410 gears.245 tires.just made a trip 14.3 mpg,at 70 mph about 2600 rpm, if i were to go to 265 tires about what would the rpm, be and woul the gas miliage change much thanks
Re: Gas Mileage goldrush 4-27-03  
Put dual exausts, remove california emissions crap.
Re: Gas Mileage ron 8-13-03  
Getting a M-315 coachman,santara class c ford v-10,w/4.63 rearend...what kind of mileage can I expect....yes has overdrive...1999
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