No matter the condition of your 2003 Escalade EXT, OPGI has the Oils, Fluids & Additives products you need to boost performance and get you back on the road. We currently carry five Oils, Fluids & Additives items to choose from for your 2003 Escalade EXT, and our Price Match Guaranteed prices range from as little as $10.95 up to $24.99. OPGI offers AC Delco plus one other trusted brands of Oils, Fluids & Additives products for your 2003 Escalade EXT, to help you find quality parts you can rely on. With OPGI's 45-day return policy and one customer reviews, you can shop with the utmost confidence. Enjoy parts delivered directly to your home, or visit our sunny Southern California Showroom & Warehouse to check out our Oils, Fluids & Additives items in person.