The “three cleaning brothers” of engine oils - detergents, dispersants, and solvency - like Andersen’s ducklings: one may seem ugly? but all three keep the engine clean

#engineoil #pennzoil #amsoil #USA #EU #ACEA #API #shell #TBN #dispersants #succinimide #solvency

https://www.youtube.com/watch?v=AN7YpkJX2vk