2013 Subaru 2.5 na engine. Used group III in 0& 5-20 for a few yrs w/o issue. Switched to group 4 Amsoil 0-20 for the past 2 yrs. Oil consumption of a few qts between oci. Bit of a short tripper vehicle. UOA last yr for one yr oci resulted in oil being fine but with a few qts oil added. My remedy... added one qt of Pennsoil 5-20 with the Amsoil and now NO consumption at all! Problem solved. What do U all think?
Noticed some consumption with my Baja in signature starting around 75 -- 80 thousand miles. Used about half a quart in a 4-5 thousand mile OCI. Was using 5W30 conventional mostly. Switched to a HM 5W30 full synthetic and consumption stopped altogether. Current fill is Rotella T6 5W30 full synthetic and nearly 2 thousand miles in -- no oil loss on the dipstick.
2017 VW Jetta SE TSI 1.4L Turbo (hers) PP Euro 0W40 & FU (42K) 2008 Acura TL 3.2L PPPP 0W20 & FU (114K) 2005 Subaru Baja AWD 2.5L N/A 5spd. T6 MV 5W30 & FU (103K) 2000 Ram 4X4 5.2L (93K) T6 MV 5W30 & FU