Changed the oil. I went with an STP S2808 oil filter (cheap!) which I think has a bypass valve, but I can’t really tell. I used the same Pennzoil 10W-30 High Mileage formula. It was hard to tell just how much oil I drained out, but I think it was over 3 qts, so I’m still doing good in that department. I topped off the coolant, I do seem to be losing that at a fairly slow rate. The front tires are feeling a little less grippy than I’d like, maybe I should just rotate them, the rears are in better shape. The car is still spending most of it’s time sitting. I’m thinking of making the switch from Mobil gasoline to Shell.