Huntindog
Phoenix AZ
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Bionic Man wrote:Nice ford fanboi video. Yeah, completely objective with a whopping 5000 views so far.
I’m sure it’s a nice truck but I’d love to see a real calculation of that grade. It doesn’t look like 6%.
Couple other observations. He mentioned at the beginning of the video that the DTE changes when a trailer is hooked up. Anyone know how that is calculated? I can do it on my expedition and last time I did, DTE went up with it in the towing setting. That doesn’t make sense to me.
On the transmission temps, is there anywhere published that shows what normal operating temps are? I know my ZF8HP runs above 200 solo. I saw 230* towing with my expedition in the rolling hills on I25 in Wyoming. I just don’t think that 224* that showed during the review is anything to worry about. With todays fluids, the seals will give up first.
I don't like temps above 200 for sure,
Huntindog
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Grit dog
Black Diamond, WA
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^8HPs are designed to run at 200deg. Idk why, but I may be able to find out. Bottom line, picking a temperature and saying it’s unilaterally good or bad is not an accurate assessment.
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Grit dog
Black Diamond, WA
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What temps are the Ford 10 speeds supposed to run? That’s the real question.
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Cummins12V98
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Those high temps with long change intervals would be concerning to me.
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Grit dog
Black Diamond, WA
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Cummins12V98 wrote:Those high temps with long change intervals would be concerning to me.
Refer to my post above. How is it a concern if it’s designed to run those temps?
Do we really think a 10k trailer on a grade overheated the trans on a new Super Superdoody?
I’m not even a Ford guy and I believe it had to be operating within its design parameters.
Other transmissions run at 200+ light load by design. It’s not a stretch to believe this one does too.
What’s funny is with all the clock watchers on this forum and I’m sure plenty of them driving new Powerstrokes, no one else is concerned or has mentioned trans temps on these trucks?
(But I don’t watch those YooToob reviews. If I want uninformed opinions I just come here to this forum….)
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4x4ord
Alberta
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I certainly wouldn't put just any old ATF in my Ford transmission but I have full confidence that if the transmission is designed to run hot, the synthetic fluid that is used in the transmission is designed to be able to provide the necessary lubrication at temperatures well over 230 degrees. If I've got the specified fluid in my transmission and no warning light is on I'm not going to be concerned regardless of whether or not I've got warranty on my truck. I guess hearing of all sorts of 10R140s burning up might change my attitude.
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Grit dog
Black Diamond, WA
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^But you have common sense and some understanding of vehicles.
Most of the yapping here is just speculation or folks who like to read what they wrote….
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Cummins12V98
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I NEVER said it was overheated! FACT, transmission fluid lasts longer the cooler it's ran. Longer intervals on the change would be concerning to ME as I mentioned. Just my OPINION kids!!!
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Huntindog
Phoenix AZ
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Cummins12V98 wrote:I NEVER said it was overheated! FACT, transmission fluid lasts longer the cooler it's ran. Longer intervals on the change would be concerning to ME as I mentioned. Just my OPINION kids!!! My Dmax doesn't even have a tranny dipstick. It runs in the 160s. I like that. I bet a lot of Ford guys have temperture envy. That's why they are sensative about it.
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4x4ord
Alberta
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Cummins12V98 wrote:I NEVER said it was overheated! FACT, transmission fluid lasts longer the cooler it's ran. Longer intervals on the change would be concerning to ME as I mentioned. Just my OPINION kids!!!
You probably know a lot more about this than I do but my understanding is that the viscosity of an oil is tested at 210 degrees. Non synthetic oils can't spend much time at temperatures much over that without breaking down. On the other hand synthetic oils can be designed to handle far more heat and still operate at their rated viscosity....well over 300 degrees without any ill effects. I don't know much about this but if running high transmission temperatures required more frequent change intervals wouldn't Ford specify more frequent change intervals?
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