The oil war has begun

Houston, TX. -- Quaker State is calling for an end of the "Oil Wear Wars" today by challenging its major motor oil competitors to a motor oil comparison. Quaker State has issued a challenge to Mobil 1, Valvoline and Castrol to show that no leading full synthetic SAE 5W-30 motor oil provides better wear protection in the ASTM Sequence IVA test than Quaker State Q HorsePower Full Synthetic -- not Castrol, not Valvoline, not Mobil 1.