Originally Posted by Toms Blue Ram 1500
I pulled the plugs at the bottom of the engine block and drained out all the old coolant then did a complete refill of 50/50 with Prestone and distilled water . You may also want to consider replacing the radiator cap also . That is one of the most overlooked replacable components of the cooling system .
I was told to use only G05, and prestone doesn't manufacture that to my findings. G05 is Chrysler's recommended use for coolant.
Dodge calls strictly for HOAT and prestone is only OAT.
And do I fill on the radiator cap hole, or the coolant level tank?