2014 Acura TSX, 4 Cylinder, Automatic with about 150,000 miles on it.
Previous owner is a family member, and they always brought it to the dealer. Since I owned the car at around 95k or so, I have been following the maintenance indicator lights. The oil life goes off about every 7,000-8,000 miles
Until around 120,000 miles, I noticed I had consumed about a quart of oil. So I decided to go to a 5,000 mile oil change interval.
Started noticing oil consumption issues again at around 149k. I had gone about 3,000 miles and lost about a quart of oil.
So in about 30,000 miles I went from a quart every 7-8k miles to a quart every 3,000 miles.
I had noticed one leak at around 146k miles. There was a small leak on the check of metal that the oil filter mounts to, that mounts to the rest of the block. Replaced the two o-rings. No more leaks. When I checked to see how much oil I was consuming, I added some dye to help see if there were any more leaks I can’t visibly see. So far nothing that I can see.
What is a guy supposed to do? Should I just add in a quart every 2500 miles or so? Then do a complete drain and refill when ever the maintenance light comes on? I’m a bit concerned that this problem has more than doubled in the past 30,000 miles.
I did replace the PCV valve, and made sure it was working before putting it in.
Would an engine oil flush help? It would help remove any sludge/carbon build up/varnish, but I’m not sure if that’s a double edge sword? Where some of the carbon build up can actually be helping seal things up, and removing it would just make it worse?
Thanks for any tips or suggestions.