Genuine replacement parts and accessories are offered for your Carquest lube filter. Product Features:Purchase of kit includes testing charges. Testing includes 23 Elements, Antifreeze, Fuel Dilution, Viscosity @ 100 C, Complete Oil Condition (Soot, Oxidation, Nitration, Sulfation)Contains [1] 2.5 oz. Bottle with Lid; Label for Sample Information; Ziploc, Bubble Mailer for Return (Return Postage is included)