This was fine until a drum filled with hydraulic oil was mislabeled as 10W ... perform well over wide temperature ranges. SAE 0W-30 flows better than 10W-30 at lower temperatures.

Most are transitioning to SAE 10w ... correct engine oil that meets OEM requirements. The trend to lower viscosity engine oils is continuing. Engine builders have included SAE 10W-30 in lube ...

SAE 10W30 will sync with the components used in the vehicle. Any higher/ thicker grade(10w-30), might have constraints in the oil flow through the tighter tolerances maintained in the construction ...