Engine oil provides cooling ... Engine builders have included SAE 10W-30 in lube recommendations since API CJ-4 was introduced in 2006. It hasn’t expanded much, but use of SAE 10w-30 is expected ...

Synthetic blend SAE 10W-30 or 10W-40 diesel-engine oil may offer extended-drain capability, enhanced engine cleanliness and excellent wear protection in the hottest summer heat and the coldest win ...

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 ...