sdls

As sha4000 said, the front. I’m sure there are some decent tutorials on YouTube for the procedure. You’re trying to get all of the air bubbles out of the system in order to get a decent fill of coolant when you do this. In my opinion it’s a must for topping off a cooling system. It doesn’t have to be crazy steep, just steep enough to get the filling point higher than all the other cooling components. Bubbles migrate to the top of any fluid system so this way the bubbles come out of the fill point rather than staying trapped in the cooling circuit.

lwphat66

Left or right?