Joined
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127 Posts
Hey all,
Towed for the second time with the truck, 5500# - 6000#, 24' enclose car trailer. The first time I went out I left the truck in drive (not manual) and not tow mode. I was monitoring my EGT's and I believe I remembered my EGT's being in the 1000+ range most of the trip. I had registered about 13 MPG.
This past weekend I towed back to the same location but this time I had the truck in manual 5th the whole way. I don't like tow haul because of what I feel is the ineffectiveness of the exhaust brake with such a heavy load. Just doesn't seem to slow me down but it certainly tries revving the engine north of 4000 RPM's. I will say that I likes towing in manual 5th. Held the gears better and the mileage was pretty good averaging 14.5 to my surprise. The other thing I noticed was that my EGT's were significantly lower this trip. I averaged EGT's in the 800's. The unfortunate byproduct of the lower EGT's is that my soot levels went up from 30% to 80% on my 130 mile round trip. I had thought the EGT's would have been high enough in the 900-1000 range to passively burn out the soot from the DPF. Now I know the truck will have to do another active regen soon.
With the local racetrack opening up I'll have to monitor and play with towing in 6th to see if I can get higher EGT's and burn the soot out and also to see if the lower mileage towing mostly in 6th was just a fluke.
Towed for the second time with the truck, 5500# - 6000#, 24' enclose car trailer. The first time I went out I left the truck in drive (not manual) and not tow mode. I was monitoring my EGT's and I believe I remembered my EGT's being in the 1000+ range most of the trip. I had registered about 13 MPG.
This past weekend I towed back to the same location but this time I had the truck in manual 5th the whole way. I don't like tow haul because of what I feel is the ineffectiveness of the exhaust brake with such a heavy load. Just doesn't seem to slow me down but it certainly tries revving the engine north of 4000 RPM's. I will say that I likes towing in manual 5th. Held the gears better and the mileage was pretty good averaging 14.5 to my surprise. The other thing I noticed was that my EGT's were significantly lower this trip. I averaged EGT's in the 800's. The unfortunate byproduct of the lower EGT's is that my soot levels went up from 30% to 80% on my 130 mile round trip. I had thought the EGT's would have been high enough in the 900-1000 range to passively burn out the soot from the DPF. Now I know the truck will have to do another active regen soon.
With the local racetrack opening up I'll have to monitor and play with towing in 6th to see if I can get higher EGT's and burn the soot out and also to see if the lower mileage towing mostly in 6th was just a fluke.