We've got everything you need to keep your vehicle on the road! Shop in-store or online and get everything you need with FREE Next Day Delivery. | O'Reilly Auto Parts

O'Reilly Synthetic Motor Oil provides high quality engine protection under all driving conditions and is specifically formulated to provide extra protection against the harmful effects of city driving, where cars undergo a higher stress due to constant stopping and going. - Protects engines under all driving conditions - Lowers friction and improves gas mileage - Provides longer engine life - Protects against rust, corrosion and varnish - Resists thermal break-down | O'Reilly Auto Parts