tundra2000
New member
Last year I changed the antifreeze in my truck with amsoil antifreeze, and this year I need more antifreeze for the winter. I tested the antifreeze and if i remember it read about -20 to -28, and i know where i live it can get down in the -30's, so my question is can i put over the counter antifreeze in it or do i have to get more amsoil antifreeze? I'm wondering because its a aluminum block and if over the counter antifreeze will be fine with out causing any corrosion in my block.