Forum Discussion
moman1
Apr 07, 2016Explorer
mtrumpet wrote:scrubjaysnest wrote:
We always followed the rule 3 months or 3 thousand miles for our vehicles.
Yes, for everyday driver vehicles. But the OP is referring to a Class A Diesel with 19 quarts of oil and one very large filter. That would get real expensive, real quick if done every three months.
My Cummins manual recommends oil be changed every 15,000 miles or 1 year whichever comes first. I don't drive near 15,000 miles per season and I can't see dumping 19 quarts of oil just because the calendar says so. Plus, my rig is stored in a heated building all winter, therefore it doesn't see the drastic temp changes.
Typically, I'll change mine at 18 to 24 months. I once had my engine oil analyzed at 18 months and it came back good. I know some fellows that haven't changed their oil in 3 years. Another can't even remember when he changed his last (not recommended!).
Some will say that you should change your oil every year regardless of usage. While that certainly wouldn't hurt at all, is that really necessary to do so on short intervals, especially if the rig is driven only a few thousand miles per year? My opinion is no. But, that's only MY opinion and not a scientifically based answer.;)
Perfect! There is someone out there with my mindset and situation. An oil analysis sounds like a good investment. I just need to find a place to do it locally. It would be different if I were full-timing it. But I'm averaging about 600 miles a year on it. I really need to trade it in on a fifth wheel toy hauler.
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