- Joined
- Mar 23, 2018
- Posts
- 1,491
- Reaction score
- 2,649
- Location
- Southeast WI
- Ram Year
- 2015 Sport 4x4
- Engine
- Hemi 5.7
So Super Car 5-30 for an all year oil in partial year freezing climates?Dave @ HPL helped us think of it this way - they targeted Premium Plus engine oil for API SP engines. Recall SP was targeted to engines susceptable to LSPI and higher power densities (better gas mileage). That means the little turbo motors with GDI.
They targeted Super car for API SN engines, just like Red Line oil - lots and lots of additives, even though Premium Plus still has enough moly for Hemis.
They also made Super Car stiffer = higher viscosity within the SAE grades for better load carrying / towing. Super car also has 17% higher HTHS viscosity. Clearly, Super Car is for trucks, Premium Plus is for go carts.
Hope this helps.