Hi there;
I have Mazda 6 AT with 160k on the odometer; I am the second owner. I have owned it for past 6-7 years now. I've been used 5-20 conventional oil from Pennsoil, Mobile or Castrol interchangeably along with Mann cartiage filters only on the car but I've never used high mileage oil. Hovewer, I did not noticed some or if any use of the oil between the changes. I am doing it almost always at 3k miles intervals. I think it's PCV valve wasn't changed since it's new. I consider myself mechanically inclined but the replacement is somewhat difficult because it is hidden right underneath the exhaust manifold. It is two days job for me if I want to do it. The unit also seems to be OK and the car basically runs great. Recently I had a highway trip, round trip about 1.5k miles within 48hrs and the car was secure, dependable and pleasure to drive along the way.
So my question is should I consider switching it to HM oil anytime soon because its age and many miles or maybe that would extend my periods of oil change to 5k because the HM oil is a synthetic blend oil? so whats your take on it please?
I value and thanks for your input and advice.
I have Mazda 6 AT with 160k on the odometer; I am the second owner. I have owned it for past 6-7 years now. I've been used 5-20 conventional oil from Pennsoil, Mobile or Castrol interchangeably along with Mann cartiage filters only on the car but I've never used high mileage oil. Hovewer, I did not noticed some or if any use of the oil between the changes. I am doing it almost always at 3k miles intervals. I think it's PCV valve wasn't changed since it's new. I consider myself mechanically inclined but the replacement is somewhat difficult because it is hidden right underneath the exhaust manifold. It is two days job for me if I want to do it. The unit also seems to be OK and the car basically runs great. Recently I had a highway trip, round trip about 1.5k miles within 48hrs and the car was secure, dependable and pleasure to drive along the way.
So my question is should I consider switching it to HM oil anytime soon because its age and many miles or maybe that would extend my periods of oil change to 5k because the HM oil is a synthetic blend oil? so whats your take on it please?
I value and thanks for your input and advice.
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