Drain 4spd tranny warm or cold ?

[the joker]

Ready to change the hyp gear oil in the 4spd should you drain it cold?

Few people told me to run it a while drive a few then drain

My thoughts are the shit in the bottom ( cold) will drain out
If it was warm all that shit would be smeared out all over the place

[Jon_slider]

lol
warm
if you drain cold, a thicker coating of old oil stays behind
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[joseph928]

Hot or cold doesn't matter, just takes longer cold. Did mine cold just let it drain tell no more oil comes out. Like 2 hours for me! And it helped to have the front end up.
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[dobryan]

IMHO warm is better (you are going to let it drain for a while so nothing is really going to be stuck to anything if significant), but best is to change it.... warm or cold!
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[IdahoDoug]

Warm. I always have my oil drain pan out for engine or diffy or tranny drain time so when I come back to the garage I have the drain plug out within a minute or two. I also remove the fill plug first so the oil can come out at high velocity, and also because it's good practice in case the fill plug strips or otherwise won't come out so you are not stranded.

DougM
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[Wildthings]

If you drive the van for a bit before pulling the plug, more nasties are apt to be held in suspension and will be removed with the oil.

[the joker]

Drained it -normal metals on the magnet-small stalagmite of 90K of wear
Filled it 1.6 qts plus -but don't feel any at the plug hole shouldn't I
It's on a slight grade in my driveway but still, don't have my Bentley

Any input would be appreciated

[Randy in Maine]

I always warm up the new gear oil in the microwave so that it pours or pumps easier.

[the joker]

Anyone have their Bentley handy - need the capacity if a 84 1.9 originally
T-25 4spd. Was I wrong to think 1.6qts. Is it more like 3.6qts

[the joker]

Just goggled it 2.8qts- is that correct?

[Snort]

The manual says 3.2 quarts.

However, it also says after that spec, "To reduce shifting effort, transmission oil capacity has been reduced. ... Oil should only be poured in to a level approximately 15mm below the hole."

[Wildthings]

[Jon_slider]

[70coupyel]

I just had mine rebuilt and my rebuilder said to put 3.2 qts. in.
How much oil are you guys putting in when you fill it to the fill hole?
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