Can you use a motor shims that is made out of steel and my motor is cooper and it's 0.020 is that to much when I had my head redone I don't think they took that much off the head

What is your question?

I'm replacing my head gasket for the third time

What makes this problem better or worse?

When I don't run the heater

How long has your 2005 Honda Civic had this problem?

Ayear