Auto trans longevity

[mustang_guy]

Do you people not understand that the values listed in the owner's manual are arrived at by hundreds of engineers who have put thousands of hours into testing parts, fluids, assemblies, and hundreds of thousands of miles on vehicles?

Yes - the owners manual states 150K transmission fluid interval, for normal driving conditions. The transmission and transmission fluid is designed and engineered for this. Is it beneficial to do it sooner? Yes. Is it necessary? No.

Oil changes are now recommended at 10K.

Engines and transmissions are built now better than ever. Better materials, better design, tighter tolerances, all of that allows the longer duration.

The push for longer maintenance intervals comes from the consumer. Because, guess what, nobody likes taking their vehicle in for service.

As far as the lug nut torque, no, you will not warp, snap off, or seize anything. The product is DESIGNED for this, hence why the spec is what it is.

Longer oil changes can cause a lot of problems. It contributes to the seal issues bmws have. Longer then 5k service intervals is silly. Also no fluid holds viscosity for the lifetime of a vehicle. Its designed to fail and cause a new transmission to be bought. Bmw does it with all of their vehicles, including rear differentials. They calculate what the average life of typical ownership is and say its good for that amount of time. Not changing your transmission fluid because the manual says its okay is the dumbest thing ive read on a forum in awhile. Autos should be changed every 15-30k, based off how the car is driven as should rear differentials. You realize they are in this to make money, they will make more money from a new transmission being bought then shorter interval changes. They don't make jack from regular maintenance. Its repairs that bring in the money.

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[Choking_Victim]

^^^ thanks thought I was alone, this forum is getting really retarded with 90% of this shit..

 

[Mustm26]

Oil changes are recommended at 10,000 mi. but that's most likely for normal driving. Mine now has 1000 miles on it and the oil minder says it is at 80%. I've been running it hard on rides to break it in properly in Sport Mode mostly.

Checked my lug nuts when purchased and one or two on each wheel were not at 150 lbs.. I made them all 150.

 

[comagt]

Do you people not understand that the values listed in the owner's manual are arrived at by hundreds of engineers who have put thousands of hours into testing parts, fluids, assemblies, and hundreds of thousands of miles on vehicles?

Yes - the owners manual states 150K transmission fluid interval, for normal driving conditions. The transmission and transmission fluid is designed and engineered for this. Is it beneficial to do it sooner? Yes. Is it necessary? No.

Oil changes are now recommended at 10K.

Engines and transmissions are built now better than ever. Better materials, better design, tighter tolerances, all of that allows the longer duration.

The push for longer maintenance intervals comes from the consumer. Because, guess what, nobody likes taking their vehicle in for service.

As far as the lug nut torque, no, you will not warp, snap off, or seize anything. The product is DESIGNED for this, hence why the spec is what it is.

Finally some sanity in this thread. Changing the transmission fluid and filter early is actually opening the transmission up for more potential issues. The odds are greater that you will cause the transmission to fail through racing and additional power stress before the fluid is even a factor.

But it would appear some people have trust and control issues with Ford engineers.

 

[mustang_guy]

Finally some sanity in this thread. Changing the transmission fluid and filter early is actually opening the transmission up for more potential issues. The odds are greater that you will cause the transmission to fail through racing and additional power stress before the fluid is even a factor.

But it would appear some people have trust and control issues with Ford engineers.

I was a previous Ford master tech. I guess I know nothing. :lol:

 

[Choking_Victim]

:shrug::clap2::doh:

I was a previous Ford master tech. I guess I know nothing. :lol:

idiot :lol::cheers:

 

[comagt]

I was a previous Ford master tech. I guess I know nothing. :lol:

Not saying you do or don't, but that qualification doesn't stand on its own. I've met great master techs that keep up with the times and ones that hung on to the old engineering.

 

[mustang_guy]

:shrug::clap2::doh:

idiot :lol::cheers:

yeah. You don't have to be an engineer to tell what causes failure.

Not saying you do or don't, but that qualification doesn't stand on its own. I've met great master techs that keep up with the times and ones that hung on to the old engineering.

I could see you feeling that way if I was saying, only use non synthetic and change your oil every 3k! Gimmie a break. There is no such thing as fluid that holds viscosity 100k, let alone 60. This isn't rocket science. You replace enough tranmissions with this bs no maintence, it gets easy to figure out. The evo X mr guys even change their fluid through a machine sucking it out. Its a sealed transmission too. Before people were changing it, they had failures. No one is saying to split the damn case. This isn't rocket science. Jesus.

Autos only fail for a few reasons, lots of WOT wears the clutch plates out, the fluid was never changed or heat killed it. Don't need an engineer to tell you that. More times then not, its heat or fluid. Youd be shocked how many people don't change fluids even in cars that are recommended to change.

 

[comagt]

yeah. You don't have to be an engineer to tell what causes failure.


I could see you feeling that way if I was saying, only use non synthetic and change your oil every 3k! Gimmie a break. There is no such thing as fluid that holds viscosity 100k, let alone 60. This isn't rocket science. You replace enough tranmissions with this bs no maintence, it gets easy to figure out. The evo X mr guys even change their fluid through a machine sucking it out. Its a sealed transmission too. Before people were changing it, they had failures. No one is saying to split the damn case. This isn't rocket science. Jesus.

Autos only fail for a few reasons, lots of WOT wears the clutch plates out, the fluid was never changed or heat killed it. Don't need an engineer to tell you that. More times then not, its heat or fluid. Youd be shocked how many people don't change fluids even in cars that are recommended to change.

I totally believe that a fluid can last that long in a sealed environment without any changes made to the tuning/power of the car. Our conversation is a little baited by the fact that 99% of the cars owned in this forum won't stay stock for long or driven gently.

I think ultimately we agree, I just don't like the old engineering standards being used in fear campaigns against the new way of doing things. It would appear that you're not in that camp. Giving caution towards peformance cars is fair. There is such a thing as changing it out too often, isn't there? Doesn't swapping fluid out in a sealed transmission introduce some level of increased risk vs leaving it alone until it can be a problem?

I'm sure we can debate what that service interval will be based on different driving environments, since the manual doesn't address it. It would be nice to have more details around what conditions merit the 150k service interval or how this is validated. Did your Ford master tech experience involve the 6R80 in Mustang applications?

 

[Finally]

No, that's the torque value..... u can leave yours loose if you'd like.

Thanks! I was hoping to get some feedback on that spec. That just seems crazy high to me, but I trust you guys.

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