2006 Colorado, 3.5L, 102 kmiles, manual states 5w30 meeting 6094M, OLM is ignored as I do 6-7k OCI.
2013 Mazda3 2.0L Skyactive, 53k miles, manual states 0W20 for CAFE countries or 5w30 for non CAFE[Mexico], Ilsac GF-5 only spec. Due to DI and fuel dilution, OCI is
So, I want to standardize on...