1999 Acura Integra Auto about 100k
I have used Mobil 5W30 Full synthetic so far. At 100k, should I switch to high mileage synthetic?
I also have a 1987 Integra with 150k - I did use Valvoline high mileage oil at 110k after reading about it in a magazine - it stopped the oil seepage.
But the 1999 does not have any oil seepage and it is bigger engine (1.8 vs 1.6).
Also, any difference in Mobil high mileage vs Valvoline high mileage?