The oil change intervals are pretty much the same (I change mine at 5000
miles however instead of at ~10,000 like the oil life meter recommends), but
you need 10 quarts so it costs a few bucks more than a gasser. The air
filter, fuel filter, etc. are also fairly infrequent (I change mine every
15,000 miles, which is much sooner than recommended). The Allison tranny
has an external spin-on filter which makes it much simpler to change. There
is no PCV valve to worry about, the coolant is the same, and you don't have
spark plugs, wires and ignition components per se. Overall, this is one of
the easiest motors to maintain that I've ever owned.
Cheers - Jonathan
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