Courtesy of BOBISTHEOILGUY

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Here is a UOA of Honda's MTF. Analysis performed by ANA labs.
1996 Acura Integra LS 1.8DOHC
82093 Miles on Vehicle
21650 Miles on fluid

VOA/UOA both by ANA
Titanium -0/0
Silver - 0/0
Copper - 0/4
Lead - 0/12
Tin - 0/8
Aluminum - 0/8
Nickel - 0/0
Iron - 0/51
Chromium - 0/0
Sodium - 0/0
Boron - 1/1
Silicon - 0/5
Water - 0/0
Soot - 0/0
Glycol - 0/0

Moly - 0/0
Magnesium - 11/45
Calcium - 2652/3353
Barium - 0/0
Phosphorous - 1401/1910
Zinc -1564/2400
Visc@100C - 11.26/6.63
Tan mg/g - 0.30/4.00

Acura recommends 30,000 mile changes


What does this mean, well, the wear numbers are pretty good, but the Visc. has thinned out from a high 30W to a low 20W. Granted it is has been in use 21K miles, and not in a S2000 tranny but I would say a MTF change every 10 000K miles would be ideal.

 

[QUOTE]Originally posted by FormerH22a4
[B]What does this mean, well, the wear numbers are pretty good, but the Visc. has thinned out from a high 30W to a low 20W.

 

The virgin analysis(baseline) AKA (VOA) numbers are the first numbers. 11.26 Visc is near the high end of 10W 30 weight. After it has been sheered to around 6, which is in the low 20W.

For comparision Mobil 1 10W 30 Visc @ 100C is near 10 toward the thin end of a 30 weight.


I'll be analysing my tranny fluid on my next change, and will post here.