Been researching a lot of oils lately and still having trouble deciding on a good robust oil for MY12 WRX which is otherwise stock. Driving habits tend to be a bit rougher than your average user I would say, but not flat out abuse. Looking into M1 0w40 and Castrol 0w30/40.
My concern with both of these oils is their calcium content with respect to LSPI events. I also would rather not have a relatively thin oil in regards to fuel dilution. I would like to keep economy, but with protection to my bearings for when I go flat out. I have no problem with a 5w40 oil, but am trying to stay away from diesel designed oils like rt6, etc due to high calcium levels for soot control in their original design. At work we religiously use M1 5w30/0w20 in most applications from small gas i4 turbos to v6 twin turbos. I haven't been able to find a VOA on a recent M1 5w30 formulation. From what I could find M1 0w40 has high calcium too. I currently have zero oil consumption using Subaru OEM (Idemistu 5w30) from day 1 and ~65k. Going to do an OA through blackstone on my next change too to gauge the overall health.
Any other suggestions welcome. Am trying to stay in the 5w30 category if I can. Other oils I'm looking at are Motul Xclean 5w30, but again can't find a VOA on that. Thanks,
Zak
My concern with both of these oils is their calcium content with respect to LSPI events. I also would rather not have a relatively thin oil in regards to fuel dilution. I would like to keep economy, but with protection to my bearings for when I go flat out. I have no problem with a 5w40 oil, but am trying to stay away from diesel designed oils like rt6, etc due to high calcium levels for soot control in their original design. At work we religiously use M1 5w30/0w20 in most applications from small gas i4 turbos to v6 twin turbos. I haven't been able to find a VOA on a recent M1 5w30 formulation. From what I could find M1 0w40 has high calcium too. I currently have zero oil consumption using Subaru OEM (Idemistu 5w30) from day 1 and ~65k. Going to do an OA through blackstone on my next change too to gauge the overall health.
Any other suggestions welcome. Am trying to stay in the 5w30 category if I can. Other oils I'm looking at are Motul Xclean 5w30, but again can't find a VOA on that. Thanks,
Zak