When is the last time you had a look at the spark plugs? Check for 1 or 2 that are different from the rest which might indicate antifreeze being vaporized in the combustion chamber. For a headgasket leak, you may not always see contaminated oil, but sometimes you can detect bubbles in the overflow container at certain engine temperatures (with the engine running) and see a steam cleaned spark plug that will differ from the others.
Ocassonal white smoke out the tailpipe on a warmed up engine may be another clue to a HG leak.
Hopefully, it is just air being displaced from having the system open. How has the temperature gauge been acting?
Ocassonal white smoke out the tailpipe on a warmed up engine may be another clue to a HG leak.
Hopefully, it is just air being displaced from having the system open. How has the temperature gauge been acting?