Thanks for the welcome and information, I will try the lighter oil in winter. I live in Alaska so everything I can do to make easier starting in the winter helps! Hoyt told me the ym1100d has too shallow of water jacket holes to use any coolant block heater but I thought I would check here to see if anyone else has found otherwise. Or maybe a heater in the radiator return line?
Matt
Matt, Are you in the arctic circle or lower? I have friends in Kotzebue, it is fricking cold there.
For oils, yes, the 5W30 is the winter use. Does well for +70F to lower into the -minus temps. Depending on where you live, this may be the only oil grade to use for you.
Engine size wise, your YM1110 is a 2-cly sort of like the JD650.
Here are the 2 known oil to temp charts I'm aware of.
ALSO, for the hydraulic fluid, do not use the JD-303. In some states it's banned for the past 45 years. There is something rather toxic to both humans and animals in the 303 fluid. I've searched for an MSDS on the 303, but it's sooooo old, nothing turns up. It can not be recycled either.
John Deere for the Yanmar engines of our era are to use J20C in it's place. One can find an MSDS for it.
Look for fluids that clearly state that they meet current fluid specifications and are recommended for use in equipment that specify: John Deere J20C, Case New Holland MAT 3525, Kubota UDT, Massey Ferguson M-1145, Dension HF-0 or other OEM specifications outlined in owner’s manual.
- Ask to see a Product Data Sheet on the fluid. A top quality THF that claims John Deere J20C performance will meet the following typical specifications: Viscosity 9.1cSt min. @ 100°C, Brookfield Viscosity @-35°C <70,000cP (a lower number is better), Pour Point
-33°F max., (a lower number is better), the Viscosity Index (VI) should be 130 minimum (a higher number is better).