SVTDice

I have an 01 cobra, and the coolant keeps overflowing, i brought a new reservior cap. But still. I've found puddles of coolant under my car. You think is a blown head gasket? Or there is trapped air?

I couldn't get to the dealership, so I used Amsoil 5W-30 10,000 mile drain. So far, no issues but I wouldn't expect any yet. I could not find a thicker oil

Hello SVTDice, So I've been using Motorcraft 5W-50 per the owner's manual but am willing to go a different route if consensus says another path is better. I am a daily driver nothing too crazy 2010 stock gt500 so if not motorcraft 5W-50 what might be a better choice? Thanks