@ps no idea if it makes that much difference, i am generally going too slow to be in the convoy ! I can see it MIGHT make sense,if our trailers are coupled too far from the cab, yes you can adjust it then it makes a huge area of turbulence and hence dirty air. I suspect that the convoy drafting thing would need trucks VERY close to one another. It works on racing cars though ! Yes the computer can be beaten, you have to know how to do it, we generally lock into gear 6 or 7 as you aproach a hazard, slowing using the exhaust and foot brake, if the hazard needs you to stop, clutch in ( yes its an auto with a clutch ! )and change into manual. If the hazard doesnt require a stop, back on the gas, or resume button on the cruise control, switch back to full auto and away you go. every time you change gear you use fuel that isnt actually "driving" the vehicle.Full autos generally have much smoother changes, but also need a hill strt assist system to stop 44 tonnes running back into a mini !Some people who have their own truck every day would notice that the leadfoots would eventually be returning better mpg than the guys who never over rev, block change etc. The running in period for one of these things can be 100 000kms! After that they "loosen up" and need less fuel, but break down more !Exhaust brakes, if used correctly, ie in the correct gear, they can maintain a vehicle speed, downhill and use no fuel at all! sounds horrible though !prob at about 2000 revs, and valves blowing away under the cab ! We have actual and average mpg displays in the cab so we can see wats going on !
ENOUGH ! TOO BORING ! lets talk about bikes !
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