Bests & Worsts Reviews from Amazon

This stuff speaks for itself and does not require a review. Everyone has their own opinion about oil. I have been an ASE certified mechanic at a GM dealership for over 20 years. I will use no other oil in any of my vehicles other than the Valvoline full synthetic. I had a small fridge in my work area with a small freezer. I would keep a plastic shot glass with a cover. In one, conventional oil. In the other, Valvoline synthetic. I would show the customer the frozen oil. The conventional oil was like THICK honey. While the Valvoline still moved as if it was not cold at all. I use it in my lawn equipment and snowblower. Makes for easy starting of the snowblower in cold climate regions.