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 ...
Chevron's Ursa Super Plus EC SAE 10W-30 heavy-duty motor oil helps protect engine components against wear and corrosion, and has tested to show improved fuel economy relative to SAE 15W-40 diesel ...
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