Using the Lucas 20w50 is my gamble. I have read the Toro manuals for the transaxels on my 75754. My thoughts are motor oils are designed for motors (engines) and hydraulic oils are designed for hydraulic systems. Obviously, 20w50 motor oil will work in my transaxels, but I believe 20w50...
I believe there is an immense benefit to changing the oil in the transaxels. Every mechanically knowledgeable person knows there will be wear particles in that oil that’s detrimental to the life of the unit. I have a 2020 Toro 75754 that I will service this fall. The owners manual says 20w50...