I have an rds in bed 40gal aux transfer tank....only use it on longer trips...stock tank is only 26 gallons and towing sometimes with a LIFTED Truck on 35" mud tires (if I'm too lazy to put stockers on) into a head wind with a 36' trailer can net me a low of 8.7 mpg......thats about 200 miles if I'm lucky...also running the truck that low is not good for pumps...as they cycle fuel to cool themselves....texas is a BIIIIIIG state...rural diesel prices are inflated.....and you just domt always fit when your 50 ' long trying to manuver to tahy ONE DIESEL pump they have.....
any way.....yes...rds makes great products..!
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