On my hybrid the oil life monitor deducts % remaining twice as fast while towing. I would think the EcoBoost would too.i know the owners' manual says not to go more than 10k between oil changes (and i think typically says half this when towing or in severe conditions), though i'm curious what the intelligent oil life monitor indicates in various towing conditions.
some of my trips could easily be over 5000 miles and i don't want to be changing oil in the middle of them. the trailer i would tow would be much smaller than the trailers pictured in this thread, and i'd be towing at no more than 50-55 mph for more range between fuel stops, so i'm hoping i can get closer to the normal 10k interval if i'm averaging 25+ mpg in my usage, though i could make the longer trips work with at least 7000-7500 miles between oil changes.
i haven't done a search for oil usage on awd hybrid's when towing, though if these would be more likely to go longer between oil changes (or fuel stops) i may go with the hybrid 4k instead.
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