Hard on Fuel (my Power Wagon Mileage)

From : newrvguy

Q: i have the rwal and ive never had a problem with it. of course ive rarely had an opportunity to feel it. maybe i just drive like its a 7000lb. truck not a 2500lb sports car. -- max give a man a match and he is warm for a short while. light him on fire and he is warm for the rest of his life. the truck stops better than it ever did with them enabled. perhaps the 4 wheel abs works well going by toms claims but the rear wheel abs does not appear to be well designed at least not on my 97. absolutely... rwal was a completely crappy system i have it in my 95 as well... when it detected imminent lock-up it opened a dump valve that bled all or most pressure from the rear system which also allowed some bleed-through of the front pressure since the two are not completely isolated systems which caused you to maintain traction and steering whilst you rammed into the object in front of you. on the 3rd gens the abs system can vary the amount of pressure delivered to the rear system pretty much infinitely variable not the all or nothing of the old rwal systems and keeps the rears on the verge of lockup. for the most part you never feel this occurring - it just happens automatically. as the fronts begin to lock up thats when the abs pump kicks in and you do feel a little pedal pulsation but still not as severe as the 2nd gen trucks with the 4w abs. ive tried on several occasions in both dry and wet conditions to lock my brakes up. i was only partly successful in the wet conditions and completely unsuccessful in the dry... the wheels wont bind up. the truck however decelerates quickly enough that i became very intimate with the steering wheel its really impressive to feel an 8000lb. truck stop that quickly. .