If the OEM manual and/or idiot labels call for "SN" or "SN Plus", does that mean you are stuck to GF6's?
What if unit calls for 0w20 SN but you use a GF5 0w20, is there now concern for an LSPI issue? A lot of the move to GF6's appear to be CAFE driven, but it's not clear to me if the need for SN has anything to do with LSPI or not. How would a vehicle owner know?
What if unit calls for 0w20 SN but you use a GF5 0w20, is there now concern for an LSPI issue? A lot of the move to GF6's appear to be CAFE driven, but it's not clear to me if the need for SN has anything to do with LSPI or not. How would a vehicle owner know?