Below are UOA's of the ATF with 17k on it (17k on van right now) and engine oil UOA (3rd oil change) with 6300 miles on the oil.
NOTE: The maintenance minder said 30% remaining when I changed it. It was at the low mark and I opted to change it and do a UOA instead of topping off.
Both oils look great per reports (even with all the particles the magnetic plug caught), but the lab did comment that 15k or so on the ATF is about right, and to continue "topping it off" which is dropping 3 and adding 3 every 15k or so.
I'm now 100% sold on 15k or every other oil change is good timing to refresh the ATF.
NOTE: The maintenance minder said 30% remaining when I changed it. It was at the low mark and I opted to change it and do a UOA instead of topping off.
Both oils look great per reports (even with all the particles the magnetic plug caught), but the lab did comment that 15k or so on the ATF is about right, and to continue "topping it off" which is dropping 3 and adding 3 every 15k or so.
I'm now 100% sold on 15k or every other oil change is good timing to refresh the ATF.



