Mar 16, 2022 / Oil Viscosity--Food for Thought or Fuel for a Flame War? #31 Jerry/MT Elite Member Joined Feb 2, 2008 Messages 3,141 Location North Idaho-The Palouse Tractor New Holland TD95D, Ford 4610 & Kubota M4500 RalphVa said: 5w or 0w40 is acceptable in ALL weather. Click to expand... No argument there.