How'd my rig do...
Token Redneck
Joined: Jun 2007
Posts: 9,331
Likes: 341
From: Breckenridge, TX
You can argue all you want, but that's the official latest and greatest from the service manual. At least it's more recent than TSB 09-8-3, which is where the 15* spec came from.
Laughing Gas
Joined: Nov 2014
Posts: 765
Likes: 5
From: Long Island, NY
The temperature difference is measured after driving 15 minutes at the specified speed after a cold soak? I thought it was, do the test after hot soaking the truck, after 20 minutes of driving?
Wouldn't the spread be different doing with a cold soak depending on ambient temperature and seasonal changes?
Wouldn't the spread be different doing with a cold soak depending on ambient temperature and seasonal changes?
Token Redneck
Joined: Jun 2007
Posts: 9,331
Likes: 341
From: Breckenridge, TX
The point seems to be to cut through the BS of WOT/flat ground vs tailwind vs unicorns pulling the traces; if the difference goes over 10*f unloaded at 65mph there's obviously an issue, so mitigate it.
(cue stories of people running at 50* differences for 17 years and all is well)
(cue stories of people running at 50* differences for 17 years and all is well)
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