My 2008 Acura TL in signature does NOT use any oil in between oil changes normally 5 to 7 thousand mile intervals. Being it is 12 years old, my last oil change was with QSHM 5W20 and my current oil is Pennzoil Platinum Pure Plus High Mileage 0W20. Cant see why it wont be beneficial going that route with the HM oil from here on out?? Condition seals and extra added anti wear additives. I see some people on BITOG even use HM oil with a new purchase these days.
Dale
Dale