Six common mistakes include:
1: Reusing an MLS head gasket. Don’t do it and don’t let your customer do it!
2. Replacing an original MLS head gasket with a conventional one.
3: Failing to recommend an upgraded aftermarket head gasket.
4: Replacing same with same.
5. Re-using torque-to-yield (TTY) head bolts.
6. Forgetting to remind your customer to install gaskets dry.