manual transmission fluid change

Hi everyone;
Is it necesary to change the manual transmission fluid, or just refill
when low?
If necessary, after how many Km (or miles)?

Thanks in advance for all your answers.

Daniel Rozenberg.

 

Is it necesary to change the manual transmission fluid, or just refill

Depends on the transmission. Example would be a '94 Saturn Coupe you have to
change the tranny fluid at the 9600km mark and then not again until the
200,000km mark. On an '88 Z24 you never have to change it. Your owners
manual will tell you what you need to know:

www.mygmlink.com

Steve

 

On the S- series, you change it at 6k miles, and then basically leave it
alone. You'll end up changing it when you do an axle or the clutch.

As far as getting low, if it does, you've to problems that need to be
addressed.

 

The early years of the S series mfgr manual called for an early change at
approx 10,000 km and further changes at ???100,000 km???? intervals. The
later years (with the same manual trans) did not call for these changes. I
can only speculate as to why the reduction in oil change recommendations.

I found that with both of my cars that the oil from the first change had a
very silver metallic sheen and appeared to contain a large amount of very
fine metallic material which I concluded came from the break-in wear. This
caused me to shorten the second change interval and to continue to change
the fluid regularly afterward. The trans only takes about <3 liters of
fluid and the drain plug is in an easy location (much better than the engine
oil filter) and the drain part is easy. Use sealer on the plug and DO NOT
over-tighten. Refilling is also easy if you have a funnel with a long hose
that will fit inside the dipstick hole.

IMHO transmissions are expensive to repair and clean oil, and gentle
shifting at reasonable engine speeds, are the cheapest way to extend their
service life. The cost of clean trans fluid is so low that in the big
picture it is almost zip. If you are a handy guy you will probably have
many uses for the almost clean oil that you drain.

Just my .02

 

I cnaged mine and first of all let me say it is very easy.. no filter
just open the drain plug then refill. My manual ran smoother that it
ever had after the change. My car had 140k on it and I don't think it
was ever changed. Now since tranny fluid is so cheap I replace it every
3rd oil change or every 9l miles.

 

was ever changed. Now since tranny fluid is so cheap I replace it every

You change your oil every 30 miles, gees.

 

Daniel...

I believe they recommend to change the fluid after 60k miles.....or
every 60k miles. Your owners manual should have a little blurb about it
near the end of the book.

alex

 

Alright I work for an oil changing place plus I do car work on the side.
All the books I have looked at recomend that you change you fluid in the
trans at every 30,000 miles it is very simple to do.But the first thing to
do is make sure u have a trans dipstick or right on top of the trans there
is a little red cap that u open to fill the trans. then there is a drain
plug on the passanger side of the trans pull that drain plug and catch the
fluid in some kind of measuring cup that way you know about how much fluid
u need to put back into the trans.If wu have the red cap and no dipstick
it is very important that u catch all the fluid that comes out that is the
only way you will know how much fluid u will have to put in. well I hope
this helped good luck

 

"punxyguy" <> typed until their fingers bled, and came
up with:

that is the only way you will

Or you could check the owners manual, and find out that the S series manual
trannies take 2.6 quarts.

 

Hi Fellows;
Thank you very much to all of you for your replies, which I am just
reading now.
The reason I posted the question was because I could not find any
recommendation in the owner's manual, although I found at the end the
capacities and specifications. It states 2.6 quarts (2.5 liters) for
the manual.
So, yesterday I took the car to the dealer where they did the job.
Worrisome enough, as I was going to archive the bill now, I find it
indicates they filled 1 LITER . (?).
I don't know if it's a typo, a regular item in their invoice/billing
form or what, but tomorrow early morning (its 8.00 PM here in Toronto,
Canada now), I will check the dipstick to verify if everything is OK.
Will keep you posted .

 

hi feloows;

well as expected, it was only a "clerical formality".
the form says 1 liter, but the person who did the job filled the 2.5
(perhaps even a little bit more).
nevertheless, when i checked the dipstick, I found it has marked "2.5
liters maximum", what solves the problem of knowing how much to refill.

best regards to you all.

DR.