<br/>Quote<blockquote>There will now be two PC-11 categories, one that will be backwards compatible to all current vehicles, and the other that will be OEM dependent focused on the next generation diesel engines.</blockquote><br/>Backward compatible: <br/><br/>PC-11A (Licenses as API CK-4)<br/>Viscosity grades include both SAExW-40 and xW -30 engine oils with >3.5 cP HT/HS viscosityBackward compatible with previous...