How many of you after being on this site for awhile feel more comfortable changing the oil a bit more often, rather than extending the drain intervals?
I've noticed over the years that "rarely" do we see good reports beyond 10k miles, even with good oils like Amsoil or Mobil 1.
I would guess that less than 20% of the UOA's beyond 15k miles look decent. Every now and then one will come thru and look good, but for the most part, they don't. Or are we just too picky with the numbers?
I think the norm on here has become 5-7.5k miles using any brand of oil, usually API SM conventional oils.
Maybe the new Amsoil Eao filters will help improve the results. With Amsoil the wear is usually good, but low TBN and viscosity seems to be shot around the 15k mile mark on average.
I've noticed over the years that "rarely" do we see good reports beyond 10k miles, even with good oils like Amsoil or Mobil 1.
I would guess that less than 20% of the UOA's beyond 15k miles look decent. Every now and then one will come thru and look good, but for the most part, they don't. Or are we just too picky with the numbers?
I think the norm on here has become 5-7.5k miles using any brand of oil, usually API SM conventional oils.
Maybe the new Amsoil Eao filters will help improve the results. With Amsoil the wear is usually good, but low TBN and viscosity seems to be shot around the 15k mile mark on average.