Would an Ester based oil like Red Line Performance or Amsoil Signature be a good choice? Red Line oils tend to a bit thicker also within their viscosity. I am having good luck with Kendall GT-1 Max in 160,000 miles on a 2008 Sierra which seems to be using less oil though this one is 5w30.Neighbor's Subaru FB25 takes 0W-20 and is an oil burner. We are open to trying different brands of high-mileage synthetic 0W-20.
Has anyone found a particular brand to be less susceptible to oil consumption?