1994 Pontiac Grand Am GT 150030 vehicle miles 21,420 miles OCI AMSOIL ATF

[benjamming]

1994 Pontiac Grand Am 3.1L 4T60-E automatic 4-speed
AMSOIL ATF
75% Highway driving
Hastings filter
No make-up oil added
0.5 bottle ARX added at 146,963 miles 2.5 months ago
Sample taken Mar-5-2005
21,420 miles on oil - 13.5 months
150,030 miles on car
Blackstone did the UOA which is the 1st analysis on this transmission.

1st #: Current
2nd #: Universal averages

Aluminum: 12/15
Chromium: 1/0
Iron: 177/152
Copper: 71/120
Lead: 28/91
Tin: 2/5
Molybdenum: 0/0
Nickel: 1/1
Manganese: 0/2
Silver: 0/0
Titanium: 0/0
Potassium: 0/0
Boron: 54/71
Silicon: 9/31
Sodium: 11/12
Calcium: 205/115
Magnesium: 4/12
Phosphorus: 378/269
Zinc: 8/95
Barium: 0/2
Viscosity: 6.2 cst or 46.2 SSU
Water - 0.0/0.0/0.0
TAN - 1.3
Insolubles - Trace
Flashpoint - 415/ should be >355

Does anyone know the virgin TAN of this ATF?

Oil was changed at sampling with NEO ATF and a new Pioneer filter. 6 quarts is required to refill after the pan is dropped. The sample was taken as the pan was dropped.

87,101 miles factory fill pan dropped & changed with Coastal Dexron III & ATC filter
106,700 miles pan dropped & refilled with AMSOIL ATF & Deutsch filter
128,610 miles pan dropped & refilled with AMSOIL ATF & Hastings filter which is the current analysis

Any & all comments are welcome.

 

[TR3-2001SE]

Looks like the auto-rx cleaned out a lot of stuff like iron and copper. Looks like you are taking excellent care of this car by changing this out. Wish I knew more about reading transmission analysis. I plan one on my Honda Accord at next 15,000 mile change.

 

[MolaKule]

I don't know about Amsoil, but we try to start off with a TAN of less than 0.5 and preferably 0.15.

A TAN of 1.3 at this mileage is not bad at all.

See also:

http://theoildrop.server101.com/cgi/ultimatebb.cgi?ubb=get_topic;f=11;t=000086

 

[benjamming]

Thanks.

I'm not going to do a full system flush even after adding the ARX. It ran about 3k miles & I guess 50-75% of system capacity is changed when the pan is dropped. I don't think it will harm anything even with the Neo fluid in there.