AMSOIL CJ-4 5W-40 Shines in Competitive Testing
AMSOIL recently put their AMSOIL Premium API CJ-4 5W-40 Synthetic Diesel Oil (DEO) up against four competing 5W-40’s in shear stability testing which was performed by an independent laboratory. AMSOIL recently put their AMSOIL Premium API CJ-4 5W-40 Synthetic Diesel Oil (DEO) up against four competing 5W-40’s in shear stability testing which was performed by…
