API SM to SN....no real change? | Passenger Car Motor Oil (PCMO) - Gasoline Cars/Pickups/Vans/SUVs |
I guarantee you none of us can tell any real differences by just looking at spec sheets and msds sheets. They certainly don't tell the whole story. The new GF-5/API SN oils will have better deposit control and better wear (anti-wear additives) and frictio...