Good day everyone. Well, since I purchased my '84 300SDT the oil pressure gauge has been a bit erratic. It never settles between the 1 and the 2 like my 300CDT; however, it also never settles. It erratically fluctuates between just below 2 and all the way up to 3 when at operating temperature idle. I have a feeling that this is electrical issue; however, I have no idea how to track this down. Or, it could be something else? I really don't know. The care runs fantastic and has ZERO oil leakage. Any help would be greatly appreciated.
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