I tried to be a precise as possible.

1- drained OEM pan for 14 hours into a bucket from drain plug

2- dropped the pan on the support and drained for another 2 hours.

3- removed the pan and drained into same bucket for a day

4- when filling with metal pan I captured all spillage and subtracted from amount filled.

conclusion:

Drained 5.75 quarts from OEM pan

Filled metal pan with 6.25 quarts

 

I never had proof, but I always suspected the difference was negligible. Now we know.

 

Soooo.....does that mean that the tranny was 1/2 a quart low before you did the service? If not, how did you fit more fluid in there????

 

Good catch, I misread that. I subconsciously swapped the two figures and assume the metal pan held 1/2 liter less.

 

A- trans was low on fluid (no visible leaks but maybe there is some "consumption")

B- metal pan has more capacity

C- All of the above

As I mentioned before the metal looks to have more volume.

I'm voting for C. But either way, the difference is neglible.

 

This is good data, Abran. Thank you. If it's not too much trouble, could you (and anyone else doing these somewhat routinely) continue to collect this info? If we get enough data points, we can answer your question above succinctly as A, B or C.

 

Sorry, but the hassle of collecting the fluid, measuring old fluid in my pump, etc. Is s hassle.

I'm convinced.

I did my duty, who's next?

 

A better way to test would be to take an OEM pan, place on flat surface and fill with fluid to the lip of the pan. Then take that fluid and drain into the metal pan with filter sitting in the pan.

My plastic pan was already picked up by our recycling service. Next one I do I can do that, or if someone wants to send me an OEM pan I will do the comparison.

 

Fair enough, Abran...and I agree your revised experiment will lend even more reliable results. I am in no rush, and do appreciate your efforts. Virtual-beer for you!

 

How much car did you disassemble to service the trans, we are about due