Re: "Full synthetic ..." When
Re: "Full synthetic ..." When this is on the label it sounds like this would be the best engine lube money can buy. Not all synthetics are the same. When a dealer's service department threatens to void warranty if you don't use their oil remind the guy on the other side of the counter that is required to provide it at no charge. Another thing, Magnassun-Moss Act is on your side if voiding your warranty becomes an issue.