Tranny temps: how hot is too hot?
I recently got a 5th wheel camper that I will be towing with my 2011 Silverado 1500 LTZ. It has the HD trailering and HD cooling packages (RPO codes K5L and Z82). What would you consider to be high tr...
Forum Discussion
marcsbigfoot20b27 wrote:
Yep, its not just about the fluid.......its also how much heat the seals can handle. One seal failure can mean totally disabled trans.
I worked at a transmission shop for 4 years (23 years ago) Seen lots of burned up units, some with wasted seals and clutch packs where the glue that holds the fiber to the steel was gone.
Anything over 225 for more than 5 minutes and I would pull over or add a bigger cooler. It doesn't matter if you have full synthetic that can handle 350 degrees if the seals melt.
My truck stock would get up to 210 going up the rim in AZ. Added a way bigger cooler and now it only gets to 160 max ever.
Do you think seal technology has stood still for 30 or 40 years? Just like fluid and everything else, the technology has increased immensely.
Mark; where are you at? Time to straighten some of these people out. :B Your phone is ringing!!
