Problem IMHO with the hype over the OEM oils is that they are a "generic"... made for the OEMs by any number of suppliers...e.g. Mobil does TGMO at the present time, but there have been a couple of different suppliers and recipes "made especially for Toyota engines" over the years.
They meet SN, and GF-5.
the M1 has a couple of OEM approvals over the top, Ford and Dexos, which are a tad tighter than the basic API specs.
They meet SN, and GF-5.
the M1 has a couple of OEM approvals over the top, Ford and Dexos, which are a tad tighter than the basic API specs.