440 Oil/Capacity

When I worked as a mechanic and in dealerships ('70's - '80's), we found conventional Valvoline was least prone to oil usage in the engines. Today there are many great oils and it comes down to opinions. If you'd like higher Zinc content, Valvoline makes the VR-1 series oil including conventional 10w-30 and 20w-50, both at reasonable pricing. My opinion: For a stock engine the VR-1 10w-30 is fine as it will flow easier on cold starts, or any conventional 10w-40 of your choice and you can use a Zinc additive for peace of mind. For a modified engine with a performance oil pump 20w-50 is good as you can take advantage of the larger pickup tube.