Quote:
Originally Posted by Hugh.vines@att.net
Oil doesn’t break down just get dirty. I worked at the railroad and we never changed oil. Just changed filters and add oil. We ran tests on oil every 30 days to monitor never break down but dirty. 20/50 only change was if complete engine rebuild. We changed valves pistons and other parts still no oil change just added oil. I do Chang oil in my gas rv but only ever 7000 miles. I change the oil in my generator twice a year August January. But that’s just me. Never had engine problems in any of my vehicles. Knock on wood.
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I changed my 5500 Onan Oil and filter for first time last weekend. I plan to do similar to what you suggest. I was going to change oil every March & September but only change the OEM Oil filter with another OEM oil filter on 1st change where I hit or got close to 150 hours? I have new Air filter but manual says 450 hours? I don't think I can wait that long to use it
I would change oil in RV engine every 7500 miles.
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