Forum Discussion
Greyghost
May 09, 2014Explorer
Bruce Brown wrote:
I have no idea why he was limited to 50 MPH in his diesel - ours does not.
I have no idea as well. My first trip south on I5 I put the pedal to the metal and once I hit 50 on the climb up the Grape Vine there was no further acceleration. I believe that it's an RPM issue that controls the speed. I can have the cruise set to 65 and it drops down to 50 on the hills. I just figured that the Allison was programmed that way to protect the engine and transmission. Now I just let it do it's thing. I'm in no hurry, I'm finally retired. :B
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