Amazon is offering a free Royal Purple oil filter with the purchase of select 5-quart jugs of Royal Purple oil. Add filter and oil to cart, then proceed to final checkout to see discounted price. 5W-30 and 5W-20 are temporarily out of stock, but can still be purchased at this price. Or get a free oil filter with the purchase of select 6-packs or 5.1 quart jugs of Mobil 1 oil.
Deal has expired