I'd think the viscosity advantage of a synthetic alone would be enough
reason to use it. Especially because of your location "way up north". I've been
a
Mobil 1 fan over 30 years, cars, bikes, small engines, and the temperature
stable viscosity was one of the factors I found it attractive.
Cleaner,non-leaded fuels make it less of an option with today's extended oil
changes due to
less oil contimination than years ago. But I'd think your battery/starter
would last longer with a synthetic. I also think there are big differences in
over the counter oil filters. The widely available Fram filters are not 10,000
mile capable, IMHO. Do a search on oil filters , and make your own decision.
Bob, doesn't really like oil changes anyhoo, W
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