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need help with trans fluid change

eshoremd

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eshoremd Enthusiast

eshoremd

Posted
Posted

im in need of a trans fluid and filter change. i do a decent amount of towing so was thinking of using a synthetic fluid. what brands are good and how many qts. does a 2000 2500 w/6.0 4x4 hold? thanks

citydriver Enthusiast

citydriver

Posted
Posted

Welcome to the Forum :jester:

im in need of a trans fluid and filter change. i do a decent amount of towing so was thinking of using a synthetic fluid. what brands are good and how many qts. does a 2000 2500 w/6.0 4x4 hold? thanks 

Fluid amount depends on which tranny you have, a 4L60E takes about 6qts on a normal fluid and filter change,if I remember correctly. But your owners manual should give you the correct info for your truck....As far as fluid brands, I can only tell you that I've had good luck w/ Castrol and/or Valvoline I've used both without incident

DJinCO Enthusiast

DJinCO

Posted
Posted

It really depends on where you go to flush and fill your transmission. The dealer here in Colo Springs does not drop the pan and change the filter. The do a "back-flush" using the cooler lines. I don't like the idea of that process, so I went to a transmission shop that has the flush and fill equipment, dropped the pan and replaced the filter. The flush and refill took approximately four gallons. I took in my own Amsoil ATF and have been very happy with the results.

 

I tow on a regular basis all over the Colorado mountains without a worry.

 

Cheers, Doug

Valsport Enthusiast

Valsport

Posted
Posted

If you just drop the pan, you will drain about 5 quarts in a 4L60E, which is the transmission in the 1/2 ton 4WD trucks. If you just drop the pan and change the filter there is no point in putting 5 qts of synthetic ATF into the system of 12 qts. You'll need to get the tranny flushed to make the switch.

bigdogs Senior Enthusiast

bigdogs

Posted
Posted
I don't like the idea of that process, so I went to a transmission shop that has the flush and fill equipment, dropped the pan and replaced the filter. The flush and refill took approximately four gallons. I took in my own Amsoil ATF and have been very happy with the results.

That is what I'd like to do also but have not found a place that can/will do it on an Allison tranny.

citydriver Enthusiast

citydriver

Posted
Posted
i thought all trucks have the 4L80E and the cars have the 4L60e. i bought my truck used and dont have the owners manual.

You can check the RPO code sticker in your glovebox,if you have a 4L60E you should have a M30 code, a 4L80E would have a MT1 code LOOK HERE

As far as the fliud flush mentioned above, that would be a better option if you want to convert to synthetic, but the filter should also be changed, otherwise whats the point? Besides I would rather drop the pan and take a look-see for any tell tale signs of excessive wear (metal shavings for example)....just a thought

commanche1 Enthusiast

commanche1

Posted
Posted

i installed a drain plug in my pan.5 dollars at part store.i changed the filter then put in 5 quarts of fluid . i drove for 3 days then opened the drain plug out came 5 more quarts and i put in 5 clean quarts. i know this is not a perfect way to do it but i dont want to mess with cooler hoses etc. every year i go under open drain plug and put in 5 fresh quarts of fluid.takes about a minute to drain and in goes new stuff.mechanics here said thats way they do it.take care. :puke:

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