I have a 2001 and it has 103000 on it. It never uses any oil and I have always used Valvolene regular 5-30. I change at 5000 miles. Except for a valve tick in the winter when the cold engine is started, no other engine problems. When I check the oil is clean, a clear amber color and reads full. I use the regular filter. As the milege gets up there should I use a long mileage oil or a bigger filter? I have seen no sign of leaks or oil burning.