royal purple 01530 sae multi-grade synthetic motor oil 5w30 pack of 6 quarts royal purple royal purple #01530 motor oil, multi-grade, synthetic, 5w30, 1 quart, pack of 6. royal purple motor oil is an api licensed product that will provide superior protection and improved performance in any four-cycle gasoline engine. it will reduce internal engine heat and wear and save fuel and reduce emissions. the excellent oxidation stability saves you money because it enables longer service intervals and fewer oil changes.features:* delivers superior protection and improved performance* excellent for use in any four-cycle gasoline engine* saves money by extending service intervals and requiring fewer oil changes* royal purple oils are api licensed to comply with manufacturer warranties* a blend of synthetic oils and royal purple's proprietary synerlec technology