Classic description of fuel gel / wax formation.
Treaters ONLY work before the fuel gels. If you can get the tractor up to 65-70f for 8 hours the wax will melt. Triple dose with Howes diesel treat and top off.
Also, in winter you need to work the machine hard for an hour to keep water contamination out of the fluids especially the eng oil. It's tough to do with cool running diesel engine.
Treaters ONLY work before the fuel gels. If you can get the tractor up to 65-70f for 8 hours the wax will melt. Triple dose with Howes diesel treat and top off.
Also, in winter you need to work the machine hard for an hour to keep water contamination out of the fluids especially the eng oil. It's tough to do with cool running diesel engine.