Hi all. I found antifreeze under my Onan 8HDKAK-1046K generator. Upon investigation I found a crack in the expansion tank (see photo). It is near the top and we only discovered it when we topped off the antifreeze. It is where the oil fill line goes through the expansion tank (as was discussed here Generator leaking antifreeze
There seems to be more than enough fluid for normal operation.
We're not near any repair facilities and I am wondering if I can just leave it. The only downside I see is more may slosh out when driving and dust may get in. I don't think the expansion tank is pressurized and the crack is flush to the oil fill line so big stuff probably can't get in.
I could Eternabond the inside the tank but am worried about contaminants, and there isn't room outside because of the oil fill tube.
Any thoughts on how important it is to replace it?
Thanks to all.