Doc's Diesel Oil Change Kits: Doc's Diesel Oil Change Kits keep your diesel rig running strong without the hassle of hunting for parts or guessing on oil. Our DIY Diesel Oil Change Kit is perfect for truck owners who know their way around a wrench but want to skip the hassle of piecing it all together. Spend less time prepping and more time driving. With fresh engine oil and a new filter, you’ll reduce engine wear, improve fuel efficiency, and avoid costly repairs. Regular maintenance gives your truck the protection it needs for tough jobs, heavy loads, and long drives. It’s simple upkeep that keeps your truck on the road where it belongs! Product Details: View each item for individual product specs. Doc's Chevrolet/GMC 6.6L Duramax Oil Filter 2020-2025 (Doc's NEW Black Oil Filter featuring upgraded materials and an enhanced grip!) Doc's The 15W-40 Full Synthetic Heavy Duty Diesel Oil Doc's auto parts all have an OEM design, fit, and function that meets or exceeds OEM Requirements Micron + Efficiency Rating: Oil Filter: 25 Micron @ 99% Efficiency Rating Fitment + Interchange: Vehicle Fitment: 2020-2025 Chevrolet/GMC 6.6L Duramax 2500HD, 3500HD Interchange: Doc's Chevrolet/GMC 6.6L Duramax Oil Filter 2020-2025 P2500: GM 12684038, AC/Delco PF26, Wix WL10454, Baldwin B7449, Premium Guard PG9952EX Change Interval: Above all recommendations, change according to your vehicle’s manufacturer warranty. Oil Filters: every 5,000-7,000 miles or 10,000-15,000 miles max Engine Oil: every 5,000-7,500 miles max, but closer to 5,000 miles for heavy-duty use. Oil capacity is 2.65 Gallons (10.6 Quarts)