230 degrees and no alarm? Cummins told me it came on at 220. I watched the trans temp as well. It ran 8 -10 degrees cooler but at hill pulls it matched the engine at times. In the Allison manual it says 250 and the trans fluid must be changed.
I'm not understanding why the factory says it alarms at 220 and must be attended to. You're saying you exceed that by 10 degrees and it's not a problem? Is this with the fan roaring as well? Because mine did hit 210 maybe 211 and the fan quickly settled it down to under 200 . I'm just not comfortable it running at 205 most the time on a 85 degree day - no traffic - running 60 mph on the freeway.
I guess I just need to go faster :?
