Manual transmision fluid normaly does not need to be changed for life of vehicle?

[bluebombersfan]

That is what my haynes manual said. I was very surprised to read this. My 2006 is at 105k. I imagine that it is a very good time for me to put new fluid in but why would they say that in the haynes manual?
I know it says this with the axle diff fluid as well but was very surprised they would say this for the manual transmission as well.

 

[4x4junkie]

I have a hard time leaving ANY fluid unchanged for the "life of the vehicle" for the simple reason the 'life of the vehicle' can be anything Ford wants it to be.
Having fresh clean fluids should make the life of any vehicle much longer than if they're never changed at all (certainly you cannot harm the vehicle by doing so as long as you use correct fluids).

If it's never been changed at 105K, I'd get on that for sure (for a '06 M5OD you would want what's currently known as "Dex/Merc" fluid, which meets the required Mercon specification for when your truck was manufactured)

 

[kryptonitecb]

I could see it in a manual but personally I would change it. An automatic would be a different story.

Sent from the road while ignoring traffic

 

[adsm08]

If it has a drain plug, it needs to be changed. I do my tranny fluid when I put a clutch in.

I try to do my diffs at least every 150K. To customers I try to recommend it at 75K, which I may go to myself now that we have this fancy new flush machine that will take the gear lube out through the fill plug.

 

[bluebombersfan]

If it has a drain plug, it needs to be changed. I do my tranny fluid when I put a clutch in.

I try to do my diffs at least every 150K. To customers I try to recommend it at 75K, which I may go to myself now that we have this fancy new flush machine that will take the gear lube out through the fill plug.

You just said you do yours when you do your clutch thats usually at about 150k?
Also why would you make your customers change there diff fluid at 75k when you do it at 150k in your own vehicle?

 

[adsm08]

You just said you do yours when you do your clutch thats usually at about 150k?

No, I usually replace my clutches around 100K.

Also why would you make your customers change there diff fluid at 75k when you do it at 150k in your own vehicle?

Two reasons.

1) If I don't do my own fluid and my rear bearings go out, well that is my problem and I knew better. If I don't recommend it to my customers and their rear bearings go out, that is also my problem. I don't want their bearing to be my problem. On the other hand, if I recommend it at 75, they decline, and their rear end bearings go at 100K, well that is their problem.

2) I am lazy, and it is a lot of work to change the fluid in my front diff.




Although as I said, now that I have access to a unit that will make the job a lot less work, I am probably going to go to a 75K schedule myself.

 

[bluebombersfan]

You replace your own clutches at a 100k even if they work okay? I had a
150k on my last ranger and my clutch still seemed fine which is why I ask.

No, I usually replace my clutches around 100K.



Two reasons.

1) If I don't do my own fluid and my rear bearings go out, well that is my problem and I knew better. If I don't recommend it to my customers and their rear bearings go out, that is also my problem. I don't want their bearing to be my problem. On the other hand, if I recommend it at 75, they decline, and their rear end bearings go at 100K, well that is their problem.

2) I am lazy, and it is a lot of work to change the fluid in my front diff.




Although as I said, now that I have access to a unit that will make the job a lot less work, I am probably going to go to a 75K schedule myself.

 

[adsm08]

You replace your own clutches at a 100k even if they work okay?

Well, my first clutch lived for about 15k, that was the one I learned on. I had a shop replace that one.

The next one lived for about 50K, then the slave went out. The trans had issues as well so I upgraded trans and flywheel/clutch assy.

My S-10 started slipping almost right at 100K, so it got replaced.

Last clutch I did was on my B2. I had only owned it a few month, so I don't honestly know how old it was. That was another one where the clutch was fine but the slave blew out.

Clutch kits are cheap, taking transmissions out is a PITA. If it is 5 years old or more and I take the trans out for any reason, it gets a clutch.

 

[kryptonitecb]

Clutch kits are cheap, taking transmissions out is a PITA. If it is 5 years old or more and I take the trans out for any reason, it gets a clutch.

My thoughts too, why pull it out at 75k to replace a slave cylinder just to go through the hassle a year later for the clutch.

Sent from the road while ignoring traffic

 

[exbass94]

The Haynes manual is wrong. They say the 2006+ auto trannies don't need fluid changed either (they say the 2005 and older trannies DO need fluid changed)....and the 06+ trucks use the exact same transmission and same fluid as the older ones! Why the hell would one year truck need the fluid changed and another year truck NOT need it when EVERYTHING about them is exactly the same??

Bottom line is, Haynes has been wrong on many things before, and this is one of those things. Change your fluid.

 

[racsan]

my thoughts always were that at every 100K replace all fluids. granted i change the manual trans fluid at about 50K. and yes, if the trans comes out, its getting a complete clutch kit, even if it only needs a slave cyl or throwout bearing.

 

[rboyer]

If I ever have a reason to take my trans out I just swap out the clutch and slave cylinder at Autozone for brand new ones. I had 20k on my clutch before and swapped it just because I already had to do the labor. Lifetime warranty parts only serve their purpose if you take advantage of the deal.

 

[adsm08]

Well my current clutch might have 20K on it, and it has been the least abused of all the ones I've had so far. I have had the engine and trans separated twice and put it back in.

I don't have a fancy life-time warranty though.

 

[dobekurt]

I had a 96 F150, 4.9L, 5-speed (mazda trans I think). The shift linkage was beginning to wear, shift rough, especially when cold. I replaced the fluid (automatic transmission fluid). It made a drastic improvement in the shifting, or at least bought me some time.

Dan
Shorewood, IL

 

[bluebombersfan]

I finally checked my manual transmission fluid was still pink

I bought my truck used with 100k, so I was assuming it needed a change, but after removing the fill plug some fluid started dribbling out and it was a nice pink color so I left it.
It must have been changed as I would not think the fluid with 100k would look like this. Even though I removed the fill plug when cold some fluid started dribbling out. I never understood why this happens as my garage floor seems to be level.