I have a 2014 Honda Foreman which I put 100 miles per year on. Short trips dragging deer and hauling firewood in a small trailer.
whelennut

I put maybe 1000 miles a year on our Razor. I change all the fluids once a year, need it or not. There are 4 different oils in it and the total cost is maybe $50 a year. That's pretty cheap insurance. If nothing else, it will flush out an moisture that might have found it's way in.

Kawi Teryx 800 V twin here......twice a year the average...800-900 miles on oil each time

For me oil & filter are cheap insurance....holds 4 quarts & is an easy chore

Your case 100 annual miles ? Bring it Utah & R I D E !

Every year oil and filter

I'll set myself up for some flames - I have a couple of low annual mileage atvs from 2004 and 2009 that are still going strong with every-other-year oil changes. Works fine for me.

i have a 06 660 grizzly do it once a year 350 /425 miles

2008 Rhino. Change the engine oil every 20 hours of run time. Overkill, I know.

Rotella 15w-40 is cheap.

T6 right ?

Thats what I used in my 2 Rhinos back when

I doubt we average over 10 mph on our rzr. At 20 hrs that would be an oil change at 200 miles. Polaris PS4 oil has sone extra additives in it that protect the lifters. Its pricey but I think its worth it.

Once a year

I use Rotella T4 15w-40 every 20 hours, with an oil filter change once a year.

Every other year

Put 25-40 hours a year on a 500 HO Sportsman ... change fluids every three years.

03 Yamaha 450 Kodiak and 07 Yamaha 660 Rhino every 100 hr's of service. Kodiak has 3k miles on it and the Rhino 4k mi on it.