In my original post, I stated that my '03 SSEi was losing coolant.
The car was not emitting white smoke from the exhaust, and the exhaust did not smell sweet. The oil was not foamy or frothy.
I could not find anywhere on the engine where coolant was leaking.
So, I decided today to tear into the top of the engine. This is what I found.
The areas of the gaskets outlined in red are my problems, correct?
This was most likely caused by the Dex-Cool? The car has 43,000 miles on it.
Should I replace the coolant elbow at the front of the intake manifold even if it wasn't damaged when removing it? If so, replace even if the replacement parts are made in CHINA?
I removed the knock sensor to drain the block. Should I put some type of thread sealant on it when putting it back on? If so, any specific type of sealant?