Service intervals...will they increase
New automatic for class 8 , heavy duty trucks called the Eaton Endurant. I was reading that he oil drain intervals have been stretched out to 750,000 miles for this transmission. I'm impressed. I...
Forum Discussion
SidecarFlip wrote:
Isn't that a servo shift? Far as I know, only Allison builds a completely automatic Class 6-8 auto and they have to have fluid changes and filters on a regular basis.
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What kills the fluid in an auto is heat and cool cycles. Gear boxes don't have the issue nearly as much.
So the Automatic Trannys or Servo shift lack torque converters? Have always heard that an unlocked TC is what builds heat in a regular automatic.
Apparently the newer "dual-clutch" trannys also lack torque converters, and I wonder why we don't see more of those in HD applications, especially if they too have very long fluid change intervals because of less heat build up.
