I'm going tomorrow to look at 2 MH's one a gasser one a pusher, the pusher is a 1997 with a 275 cat.. 100k miles.. how do I check for electrolysis in the cat or is this a non issue? thanks!
Cavitation can be an issue. Never heard of electrolysis on any diesel engine being an issue.
Cavitation is caused by not maintaining the coolant/ not changing it as prescribed. Coolant maintenance with "regular diesel coolant" involves replenishing the SCA(Supplemental Coolant Additive).
BTW, the Caterpillar engine you are looking at is NOT a linered engine, so cavitation would not be an issue.