PSA (public service announcement) Great deal on 0w16 oil. $25 rebate: $25 Back by Mail | Pennzoil $40/6pack at Amazon: Must be bought from Amazon.com, Walmart.com, or AdvanceAutoParts.com and be a 6-pack/case to be eligible. Amazon is the place to buy currently. We're still under the free toyota care oil changes, but the best time to buy something is when you don't need it - so you can take advantage of low prices as they are available. Cheers!