2003 GMC Sierra 2500 HD Transfer Case Fluids

Mobil 1 Extended Performance motor oil utilizes our signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness to vehicles of all ages. Specialty components in synthetic oil extend engine life by reducing deposits and sludge buildup – keeping critical engine parts clean and protected for up to 25,000 miles between oil changes.(1) Mobil 1 Extended Performance motor oil meets ILSAC GF-7 standards, offering superior oxidation control, enhanced protection against pre-ignition and timing chain wear, and excellent cold-start and low-temperature performance. Mobil 1 is the No. 1 selling motor oil in America at retail,(2) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR(R). (1)Protects for 25,000 miles or 1 year, whichever comes first (2)Source: Circana/ Retail Tracking Service/ Dollar Sales/ 52 weeks ending February 1, 2025 (3)vs GF-7 fuel economy requirement Volume: 5 quarts.

Shell Rotella T6 15W-40 diesel engine oil is a full synthetic motor oil that features exclusive Triple Protection Plus technology, formulated with fully synthetic base oils plus advanced additives to protect against wear, deposits, and oil breakdown. It offers better cold cranking properties and low-temperature pumpability at -15C compared to conventional and synthetic blend Shell Rotella 15W-40 products. It also delivers improved wear performance versus API CJ-4 technology, extended drain capabilities for more uptime, improved protection against oxidation for increased fuel economy, compatibility with exhaust emissions control systems, and protection in extreme operating conditions and climates. Shell Rotella T6 15W-40 is suitable for use in new and older diesel-powered vehicles, from Class 8 tractor/trailers to heavy-duty pickups and delivery, utility, and school bus fleets. Shell Rotella T6 is backed by a limited warranty valid up to 15 years or 500,000 miles (whichever comes first), guaranteed. (Shell Rotella Limited Warranty: Up to 15 years or 500,000 miles, whichever comes first, guaranteed, if you exclusively use Shell Rotella T6 Full Synthetic heavy-duty engine oil and meet enrollment mileage and vehicle manufacture date requirements. Enrollment required. Keep your receipts. Other conditions apply. See Rotella.com/warranty to enroll and for full details and terms.) Volume: 1 gallon.

Valvoline DEXRON-VI / MERCON LV ATF is a full-synthetic transmission fluid formulated with advanced additive technology to meet and exceed the requirements of the General Motors DEXRON-VI specification. It is officially licensed and approved by GM and is fully back-serviceable and can be used wherever DEXRON-II and/or DEXRON-III are recommended. Recommended for use in the following applications: DEXRON-VI, DEXRON-III, DEXRON-II, MERCON LV and Allison C-4. Volume: 1 gallon.

75,000 miles is more than a mile marker. It’s a signal that your engine is ready for greater protection. That’s when you need Valvoline High Mileage with MaxLife Technology Motor Oil. Its exclusive formula is proven to maximize engine life in cars, trucks, and SUVs with over 75,000 miles. Our mixture is specially developed with a unique combination of synthetic and premium conventional oils to protect your high-mileage motor against wear, friction, heat, and deposits – the four major causes of engine breakdown and expensive repairs. Anti-wear additives defend critical engine components, advanced friction-fighting agents reduce heat and abrasion, added detergents clean the inside of your engine, and premium seal conditioners handle aging seals to prevent leaks. It fights sludge, corrosion and rust that can rob your engine of horsepower, fuel efficiency and longevity. From extreme temperatures and cold starts to stop-and-go traffic and frequent short trips, viscosity modifiers make sure the oil flows more easily, coats more completely, and resists thermal breakdown under even the most intense driving conditions. Its unique mixture curbs contaminants to keep high-mileage engines from burning and consuming oil that can foul spark plugs, creating higher emissions and causing your motor to run roughly. Volume: 5 quarts.

Today’s advanced engine technology requires advanced protection. Valvoline Advanced Full Synthetic, the motor oil designed to protect today’s sophisticated engines, contains premium anti-wear additives, superior antioxidants and extra detergents. It protects 40% better against wear, resists oil breakdown 10-times better, and defends 25% more against deposits than industry standards for maximum performance and engine longevity. And with an exceptional range of temperature protection your engine will ready for extreme weather. Valvoline invented motor oil 150 years ago, and we’ve been reinventing it ever since. Get Valvoline Advanced Full Synthetic and give your engine the advanced protection proven to maximize engine life. Volume: 5 quarts.

Mobil 1 High Mileage motor oil utilizes our signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness to vehicles of all ages. Specialty components in synthetic oil extend engine life by reducing the friction that causes deposits and sludge buildup – keeping critical engine parts clean and protected for up to 15,000 miles between oil changes.(1) Mobil 1 High Mileage motor oil meets ILSAC GF-7 standards, offering superior oxidation control, enhanced protection against pre-ignition and timing chain wear, and excellent cold-start and low-temperature performance. Mobil 1 is the No. 1 selling motor oil in America at retail,(2) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR(R). Volume: 1 quart.

Castrol EDGE 5W-30 is one of Castrol’s strongest oils and has been formulated to provide Superior Performance and Protection in 7 Critical Areas including fuel economy, high temperature performance, sludge control and wear protection for up to 20,000 miles between oil changes. Today’s engines are smaller, more powerful and under more pressure than ever before. Castrol EDGE has been engineered to withstand the intense friction of modern engines and provides 10X better high stress performance than the latest industry standard. Peak engine loads and extreme temperature can break down weaker lubricants, so viscosity control is the ultimate measure of strength for any motor oil. Castrol EDGE has been proven 3X stronger against viscosity breakdown than the leading full synthetic so its shear stable and maintains its initial viscosity to provide protection over an extended drain cycle of up to 20,000 miles between oil changes. Stronger for Longer. Volume: 1 quart.

Valvoline Daily Protection Motor Oil is specially formulated to exceed industry standards for wear, deposit and sludge protection to help keep engines running like new. Developed with high quality additives and premium base oils, it’s designed to flow easily at cold temperatures, reducing wear at startup and providing added protection against motor oil breakdown in tough conditions. For enhanced fuel efficiency, choose Daily Protection Synthetic Blend 5W-20 or 5W-30. Developed with low-friction technology to support strong fuel economy. Volume: 5 quarts.

Mobil Delvac 15W-40 are extra high performance diesel engine oils that help extend engine life in the most severe on And off-highway applications while delivering outstanding performance in modern, high-output, low-emission engines including those with Exhaust Gas Recirculation And Aftertreatment Systems with Diesel Particulate Filters And Diesel Oxidation Catalysts. Fully backwards compatible, Mobil Delvac will also deliver the same exceptional performance in older conventional engines. As a result, they meet or exceed the requirements of the API CJ-4, CI-4 PLUS And CH-4 service categories as well as key Original Equipment Manufacture requirements for 2007 engines. Volume: 1 gallon.

Valvoline DEX/MERC ATF is a high-quality transmission fluid formulated to meet the challenging demands many automatic transmissions. Its responsive low-temperature fluidity is beneficial in both electronic and hydraulic controlled transmissions and transaxles. Recommended for use in the following applications: MERCON®, DEXRON®-III, Ford M2C138-CJ and M2C166-H, Allison C-4 and TES-389, and Caterpillar TO-2. Volume: 1 gallon.

Today’s advanced engine technology requires advanced protection. Valvoline Advanced Full Synthetic, the motor oil designed to protect today’s sophisticated engines, contains premium anti-wear additives, superior antioxidants and extra detergents. It protects 40% better against wear, resists oil breakdown 10-times better, and defends 25% more against deposits than industry standards for maximum performance and engine longevity. And with an exceptional range of temperature protection your engine will ready for extreme weather. Valvoline invented motor oil 150 years ago, and we’ve been reinventing it ever since. Get Valvoline Advanced Full Synthetic and give your engine the advanced protection proven to maximize engine life. Volume: 1 quart.

Shell Rotella T5 15W-40 Synthetic Blend diesel engine oil with Triple Protection Plus technology uses synthetic base oils plus advanced additive technology to provide protection against wear, deposits, and oil breakdown. Triple Protection Plus technology offers better low-temperature flow, which delivers excellent equipment protection, long engine life, and maintains viscosity control under high temperatures. The premium synthetic base oil components help improve cold starting and low-temperature performance without compromising engine protection or durability. Shell Rotella T5 15W-40 goes beyond CK-4 wear limits, delivering an average of 37% better than the maximum wear requirements (calculated average based on API CK-4 wear test results). It’s suitable for a wide range of heavy-duty engine applications, and is an excellent choice for on-highway fleets, construction, agriculture, and diesel pick-up trucks, including high-power vehicles where resistance to increased heat and stress is required. (Shell Rotella Limited Warranty: Valid up to 10 years or 300,000 miles (whichever comes first) if you exclusively use Shell Rotella T5 Synthetic Blend heavy-duty engine oil. Terms and conditions apply. See Rotella.Shell.com/warranty for details.) Volume: 5 gallons.

Formulated to meet the specific requirements of Subaru vehicles equipped with conventional (non-CVT) transmissions up to model year 2005. Recommended for service-fill in all Subaru automatic transmissions where SUBARU ATF HP is specified. Fuel economy demands and more sophisticated electronic controls have made automatic transmissions not only more complex, but also unique to each vehicle manufacturer. Long gone are the days of having just a couple choices of automatic transmission fluid type. Idemitsu is the factory fill Automatic Transmission Fluid (ATF) supplier to most Asian imports. Idemitsu application-specific ATF products match the exact friction materials and performance requirements of each different vehicle model for which they are made. Volume: 1 quart.

Quaker State Full Synthetic 5W-30 motor oil provides strong engine performance and protection against deposits between oil changes. It’s ideal for use in today’s technologically advanced engines and high-performance vehicles like sports cars, SUVs, trucks, and minivans. It is compatible with biofuels ranging from E10 to E85 and is suitable for hybrid vehicles. Designed to deliver more power and less friction, Quaker State Full Synthetic helps to maximize horsepower. It provides excellent lubrication in both high and low temperatures and maintains the viscosity from start to finish, offering optimal protection. Better for severe driving conditions than conventional and synthetic blend oils, Quaker State Full Synthetic protects against the formulation of sludge and other harmful deposits and provides improved fuel economy. For a full list of equipment approvals and recommendations, please consult your local Quaker State Technical Help Desk and always consult your owner’s manual. Volume: 5 quarts.

Mobil Delvac 1300 Super 15W-40 is a premium synthetic blend diesel engine oil that helps extend engine life for diesel vehicles and equipment. Volume: 5 gallons.

Quaker State 5W-30 motor oil is a synthetic blend formulation that helps engines survive daily commutes from high-speed highway operation to repetitive, stop-and-go driving. It maintains the required viscosity from start to finish, providing optimal protection. Quaker State Motor Oil combats engine sludge and deposits, providing rust protection from harmful acids generated by engine contaminants. It reduces engine wear, providing durable wear protection. Quaker State 5W-30 Motor Oil meets or exceeds the following OEM requirements: Chrysler MS-6395; Ford WSS M2C946-A, Ford WSS M2C946-B1; GM 6094M. It exceeds the requirements of the following industry specifications: API SP and all previous categories; ILSAC GF-6a and all previous ILSAC standards. For a full list of equipment approvals and recommendations, please consult your local Quaker State Technical Help Desk and always consult your owner’s manual. Volume: 5 quarts.

T4 Triple Protection 15W-40 Synthetic Blend Diesel Engine Oil delivers advanced performance for diesel engines, combining cutting-edge technology with the trusted durability of Triple Protection®. This synthetic blend is engineered to provide enhanced protection against oxidation, wear, and deposits, ensuring your engine stays cleaner and operates more efficiently. Designed for heavy-duty applications, it sustains emission control system durability in particulate filters and after-treatment systems, making it ideal for modern diesel engines. With its SAE 15W-40 weight, this oil adapts to demanding driving conditions, offering reliable performance and long-lasting protection. Perfect for those who rely on their engines for hard work, this 2.5-gallon solution ensures value and peace of mind with every use. Volume: 5 gallons.

T4 Triple Protection 15W-40 Diesel Engine Oil delivers advanced performance for hardworking diesel engines, combining cutting-edge technology with proven reliability. This synthetic blend oil is specifically engineered for diesel engines, offering enhanced protection against oxidation, wear, and deposits to ensure optimal cleanliness and efficiency. Its improved formula sustains emission control system durability, making it ideal for vehicles equipped with particulate filters and after-treatment systems. Designed to adapt to demanding driving conditions, this 15W-40 oil provides superior protection for heavy-duty applications while promoting smoother operation and extended engine life. With a 5-gallon capacity, it delivers exceptional value for fleet operators and individual users seeking dependable performance and long-term durability. Volume: 5 gallons.

Shell Rotella T6 15W-40 diesel engine oil is a full synthetic motor oil that features exclusive Triple Protection Plus technology, formulated with fully synthetic base oils plus advanced additives to protect against wear, deposits, and oil breakdown. It offers better cold cranking properties and low-temperature pumpability at -15C compared to conventional and synthetic blend Shell Rotella 15W-40 products. It also delivers improved wear performance versus API CJ-4 technology, extended drain capabilities for more uptime, improved protection against oxidation for increased fuel economy, compatibility with exhaust emissions control systems, and protection in extreme operating conditions and climates. Shell Rotella T6 15W-40 is suitable for use in new and older diesel-powered vehicles, from Class 8 tractor/trailers to heavy-duty pickups and delivery, utility, and school bus fleets. Shell Rotella T6 is backed by a limited warranty valid up to 15 years or 500,000 miles (whichever comes first), guaranteed. (Shell Rotella Limited Warranty: Up to 15 years or 500,000 miles, whichever comes first, guaranteed, if you exclusively use Shell Rotella T6 Full Synthetic heavy-duty engine oil and meet enrollment mileage and vehicle manufacture date requirements. Enrollment required. Keep your receipts. Other conditions apply. See Rotella.com/warranty to enroll and for full details and terms.) Volume: 5 gallons.

Shell Rotella® T4 Triple Protection® 15W-40 Diesel Engine Oil delivers advanced performance and reliability for heavy-duty diesel engines. This synthetic blend oil is engineered to provide enhanced protection against oxidation, wear, and deposits, ensuring your engine stays cleaner and operates more efficiently. Designed for sustained durability, it supports emission control systems, including particulate filters and after-treatment systems, making it ideal for modern diesel engines. With improved deposit control and cleanliness, this oil helps maintain peak engine performance under demanding conditions. Its 15W-40 SAE weight ensures optimal viscosity for a wide range of operating temperatures, making it a versatile choice for various driving environments. Built on the trusted heritage of Triple Protection®, this oil adapts to your engine’s needs, offering hard-working protection that keeps your equipment running smoothly. Perfect for those who demand reliability and efficiency, this 55-gallon supply is a cost-effective solution for maintaining your fleet or heavy-duty machinery. Volume: 55 gallons.

Pennzoil Platinum Full Synthetic 5W-30 is designed to maximize engine protection and is backed by a 15,000-mile protection guarantee(1) (see Warranty Information below) to protect your pursuit of every mile. Made with natural gas, it is formulated for complete protection for top engine performance. Pennzoil Platinum offers cleaner pistons (based on Sequence IIIH results), helps protect engines from loss of power, delivers better fuel economy (based on the latest industry standard), provides unsurpassed wear protection (based on Sequence IVA wear test using SAE 5W-30), and provides excellent performance in extreme temperatures. ((1)Pennzoil Platinum Lubrication Limited Warranty: Protection for up to 15,000 miles or one year, whichever comes first. Use an oil filter designed for longer oil change intervals and follow OEM manual and vehicle’s oil life sensor to maintain OEM warranty. Excludes severe driving conditions, including racing and commercial use. Your engine must have fewer than 125,000 miles and have been manufactured in the past 72 months. Enrollment required. Other conditions apply. See pennzoil.com/warranty to enroll and for full details and terms.) Volume: 6 gallons.

Pennzoil Ultra Platinum Full Synthetic 5W-30 motor oil is our most advanced formulation with unbeatable wear and sludge protection, as well as unbeatable cleanliness. When it comes to torturous driving conditions, trust the unbeatable engine protection of Pennzoil Ultra Platinum. It far exceeds the most stringent car manufacturer requirements for cleanliness and protection (based on ILSAC GF-6); it offers outstanding performance in extreme temperatures and better fuel economy (based on the latest industry standard) Pennzoil Ultra Platinum helps extend the life of your engine and protects for up to 20 years or 750,000 miles, whichever comes first, to give you peace of mind to drive every mile as hard as you can, from your daily commute to sand dunes and mountain terrain (Based on Sequence IVA wear test; Sequence IIIH oxidation and deposit test; and the Sequence VH sludge test. Pennzoil Ultra Platinum Lubrication Limited Warranty: Up to 20 years or 750,000 miles, whichever comes first, if you exclusively use Pennzoil Ultra Platinum Full Synthetic motor oil. Your engine must have fewer than 125,000 miles and have been manufactured in the past 72 months. To maintain your warranty, change your vehicles oil and oil filter at least as often as recommended by the vehicle manufacturer. Enrollment required. Keep your receipts. Other conditions apply. See pennzoil.com/warranty to enroll and for full details and terms.) Volume: 5 quarts.

Mobil Delvac Extreme 15W-40 is a high-performance synthetic diesel engine oil that helps to deliver extended performance for up to two times beyond OEM recommended oil drain intervals (1) for modern diesel engines operating in extreme conditions. Mobil Delvac Extreme 15W-40 is recommended for use in a wide range of heavy-duty applications and operating environments found on- and off-highway conditions, including engines operating under heavy loads. Fully backward compatible, it delivers excellent performance in both newer and older heavy-duty engines, meeting or exceeding the requirements of API CK-4, CJ-4, CI-4 PLUS, CI-4, and other service categories. This diesel engine oil provides exceptional high temperature performance, oxidation stability (2), and resistance to corrosive and abrasive wear to help promote long life of critical wear surfaces. Mobil Delvac Extreme 15W-40 also offers excellent low-temperature performance for increased oil flow to critical bearing surfaces at startup, controlling fluidity and pumpability for smooth starting in cold weather. ((1)Results may vary based on vehicle/engine condition, driving and environmental conditions Consult OEM or ExxonMobil before implementing extended ODIs. (2) Based on the performance in the Volvo T-13 engine test.) Volume: 1 gallon.

Pennzoil Ultra Platinum Full Synthetic 5W-30 motor oil is our most advanced formulation with unbeatable wear and sludge protection, as well as unbeatable cleanliness. When it comes to torturous driving conditions, trust the unbeatable engine protection of Pennzoil Ultra Platinum. It far exceeds the most stringent car manufacturer requirements for cleanliness and protection (based on ILSAC GF-6); it offers outstanding performance in extreme temperatures and better fuel economy (based on the latest industry standard) Pennzoil Ultra Platinum helps extend the life of your engine and protects for up to 20 years or 750,000 miles, whichever comes first, to give you peace of mind to drive every mile as hard as you can, from your daily commute to sand dunes and mountain terrain (Based on Sequence IVA wear test; Sequence IIIH oxidation and deposit test; and the Sequence VH sludge test. Pennzoil Ultra Platinum Lubrication Limited Warranty: Up to 20 years or 750,000 miles, whichever comes first, if you exclusively use Pennzoil Ultra Platinum Full Synthetic motor oil. Your engine must have fewer than 125,000 miles and have been manufactured in the past 72 months. To maintain your warranty, change your vehicles oil and oil filter at least as often as recommended by the vehicle manufacturer. Enrollment required. Keep your receipts. Other conditions apply. See pennzoil.com/warranty to enroll and for full details and terms.) Volume: 1 quart.