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

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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.
 
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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.
 

benjamming

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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.
 
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