While Amsoil certainly produces excellent motor ... It comprises one-quarter of sustainably-sourced plant-based oil in a fully synthetic motor oil, which is better in terms of emissions, and ...

While not as popular as other brands outside the U.S., Amsoil synthetic motor oil products cater to the automotive, power sports, industrial, and racing sectors. Since Amsoil motor oil is less ...

As for the best oil brand, Ram and Chrysler owners swear upon the efficacy of 5W-20 fully synthetic motor oils from Pennzoil, Mobil, Amsoil, Redline, Fram, and Royal Purple. Any brand is suitable ...