I knew the cost added to my oil change when I sent off for UOA. I felt that it was worth the piece of mind if I ever had a warranty issue and the dealer was blaming my maintenance. I could walk in and show my oil reports and have them explain where I went wrong.How much $$$ did you spend on UOAs for an economy car like a Sentra? I'd keep using what your'e using and save the UOA cost. For the UOA cost you could have had the dealer do the changes.
I won’t be sending her cars oil out for analysis anymore since it’s out of warranty and she wants to get a new vehicle after this one is paid off.
I didn’t want the dealer to do the job because I don’t trust people. People don’t do quality work when it’s not their own vehicle. And plus, dealers don’t use a specific oil brand and I wanted to stick with Mobil 1.
I’ll probably just bump her oil up to 5w30 the next time I do a oil change. Our temperature don’t get too low here in southern AZ. Probably gets to low 30’s.