Hello I bought an LR4 that needs a head gasket. The car starts up without any problems, but there are gases in the coolant and coolant in the oil. It failed to gas test twice by turning yellow. I was reading on the forums about Nathan Crabtree and Platinum Auto group land rover in KY. I live in Colorado and looking for a good place to replace my head gasket. Can any tell me who is good or any reviews on Platinum Auto Group Land Rover KY? Thank you.