Check the listing for details. Phillips 66 X/C Aviation Oil 20W50; 1045457; Case of 12 - 1 Quart Bottles. Condition: New. Listed at 99.69 USD. Phillips 66 X/C Aviation Oil is one of the most trusted aviation oils on the market. This oil is an ashless dispersant, multi-grade engine oil specially formulated for year-round use in aircraft piston engines. It provides distinct performance benefits compared with single-grade engine oils. Benefits:Ashless dispersant helps minimize engine sludge and varnish deposits for a cleaner engineEasier starting and faster oil circulation at low temperatures compared with single-grade oilsReduced warm-up time and cooler operating temperatures compared with single-grade oilsHigh film strength for protection against wear and piston scuffing, even under high-load conditions, such as takeoff, and at elevated operating temperaturesProvides cleaner and quicker break-in than traditional all-mineral, non-additized, single-grade oilsProtects against rust and corrosionReduces oil consumption in most enginesSuitable for year-round use Applications:Recommended for use in opposed piston engines. It can replace Commercial Grade 65, 80 or 100 single-grade engine oils with no sacrifice in performance Recommended for use during break-in and then as the operational oil until TBO Shipping: Items will ship via USPS, FedEx or UPS. We are unable to guarantee a specific carrier, even if one is selected or shown at checkout. We will ship via the carrier that has less days in transit to your destination. Return Policy: Buyer has 30 days from receipt of item to request a returnBuyer pays for return shippingItem must be returned in same condition as receivedIn no instance will a return or refund be permitted for a used itemUpon receipt and inspection by seller, refund will be issued within 2 business days. Refund amount will equal amount paid to seller less the fees associated with the transaction Cancellation Policy:If buyer wants to cancel transaction prior to shipment of order, for any reason, the amount refunded will equal amount paid to seller less the fees associated with the transaction