1979 GMC G3500 Oil and Lubricants

Pennzoil Platinum High Mileage Full Synthetic 5W-30 is designed to maximize engine protection and is formulated to help stop leaks in engines with more than 75,000 miles. Backed by a 15,000-mile protection guarantee to keep you covered between oil changes and for the long run (see Warranty Information below), it is the first of its kind full synthetic high mileage oil made with natural gas and is designed to deliver less oil burn off than other high mileage oils (based on Sequence IIIH results). Pennzoil Platinum High Mileage motor oil conditions seals on older engines to give added protection to high-mileage vehicles. It offers complete protection mile after thrilling mile as it protects engines from loss of horsepower, offers excellent performance in extreme temperatures, provides unsurpassed wear protection (based on Sequence IVA wear test using SAE 5W-30), and provides better fuel economy (based on the latest industry standards). (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 vehicles 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.)

Product Features:

• Full synthetic 5W-30 engine oil designed for vehicles with more than 75,000 miles
• Backed by a 15,000-mile protection guarantee to keep you covered between oil changes and for the long run
• Keeps pistons cleaner than required by the toughest industry standard (based on Sequence IIIH results)
• Proven to help stop leaks for engines with more than 75,000 miles
• Formulated to deliver less oil burn-off than high-mileage motor oils made from crude oil
• Provides better fuel economy (based on the latest industry standards) and helps protect horsepower
• Provides faster low-temperature oil flow and protects in extreme heat
• Exceeds the requirements of the following industry specifications: API SP, API SP-Resource Conserving, and all previous categories; ILSAC GF-6A
• Meets or exceeds the following OEM requirements: Chrysler MS-6395; Ford WSS-M2C961-A1
• For a full list of equipment approvals and recommendations, please consult your local Shell Technical Help Desk and always consult your owner’s manual

Pennzoil Platinum High Mileage Full Synthetic 5W-30 is designed to maximize engine protection and is formulated to help stop leaks in engines with more than 75,000 miles. Backed by a 15,000-mile protection guarantee to keep you covered between oil changes and for the long run (see Warranty Information below), it is the first of its kind full synthetic high mileage oil made with natural gas and is designed to deliver less oil burn off than other high mileage oils (based on Sequence IIIH results). Pennzoil Platinum High Mileage motor oil conditions seals on older engines to give added protection to high-mileage vehicles. It offers complete protection mile after thrilling mile as it protects engines from loss of horsepower, offers excellent performance in extreme temperatures, provides unsurpassed wear protection (based on Sequence IVA wear test using SAE 5W-30), and provides better fuel economy (based on the latest industry standards). (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 vehicles 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.)

Product Features:

• Full synthetic 5W-30 engine oil designed for vehicles with more than 75,000 miles
• Backed by a 15,000-mile protection guarantee to keep you covered between oil changes and for the long run
• Keeps pistons cleaner than required by the toughest industry standard (based on Sequence IIIH results)
• Proven to help stop leaks for engines with more than 75,000 miles
• Formulated to deliver less oil burn-off than high-mileage motor oils made from crude oil
• Provides better fuel economy (based on the latest industry standards) and helps protect horsepower
• Provides faster low-temperature oil flow and protects in extreme heat
• Exceeds the requirements of the following industry specifications: API SP, API SP-Resource Conserving, and all previous categories; ILSAC GF-6A
• Meets or exceeds the following OEM requirements: Chrysler MS-6395; Ford WSS-M2C961-A1
• For a full list of equipment approvals and recommendations, please consult your local Shell Technical Help Desk and always consult your owner’s manual

Pennzoil 5W-30 Full Synthetic motor oil is designed to let you go farther between oil changes. It provides better engine protection and is backed by a 10,000-mile protection guarantee to give you peace of mind that your engine is protected now and for all the miles ahead. Pennzoil Full Synthetic motor oil is formulated for longer drain intervals than conventional and synthetic blend motor oils, offers enhanced wear protection in high and low temperatures, provides excellent resistance to oil breakdown in severe environments, and helps prevent sludge and deposit build-up. Suitable for both new and old engines. (Compared to Pennzoil motor oil. Pennzoil Full Synthetic Lubrication Limited Warranty: Protection for up to 10,000 miles or one year, whichever comes first. Use an oil filter designed for longer oil change intervals and follow OEM manual and vehicles 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.)

Product Features:

• Full Synthetic 5W-30 motor oil provides better engine protection to give you peace of mind
• Backed by a 10,000-mile protection guarantee to help you go farther between oil changes (see Warranty Information below)
• Suitable for both new and old engines
• Offers enhanced wear protection in high and low temperatures
• Do fewer oil changes compared to conventional motor oil formulated for longer drain intervals than conventional and synthetic blend motor oils
• Provides excellent resistance to oil breakdown in severe environments
• Helps prevent sludge and deposit build-up
• Exceeds the following industry requirements: API SP-Resource Conserving and all previous categories; ILSAC GF-6A
• Meets or exceeds the requirements of the following OEM specifications: Chrysler MS-6395; Ford WSS-M2C961-A1
• For a full list of equipment approvals and recommendations, please consult your local Shell Technical Help Desk and always consult your owner’s manual

Castrol® GTX® 10W-30 is a premium conventional motor oil that has been helping to extend engine life for over 50 years. It is specially engineered to prevent harmful build-up of sludge while protecting against new oil splatter formation better than tough industry standards. Sludge is a thick, tar like substance caused by severe driving conditions such as heavy traffic, poor fuel quality, harsh driving conditions and exceeding oil change intervals. Sludge can block your engine’s vital oilways like cholesterol and if untreated, can rob an engine of its power and ultimately its life.

Product Features:

• Advanced protection against viscosity and thermal breakdown
• Superior protection against engine sludge
• Premium quality base oils and anti-wear additives to help extend the life of your engine
• Helps minimize oil consumption
• Meets or exceeds the following specifications:
• API SP/SN PLUS/SN/SM
• ILSAC GF-6

Whatever you’re driving, wherever you’re going, you can trust your car to get you there when you use Mobil 1 advanced full-synthetic motor oil 5W-30. Mobil 1 advanced synthetic motor oil utilizes Mobil 1’s 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 10,000 miles between oil changes. (1) This technologically advanced motor oil formulation provides 10X (2) better internal engine heat protection than industry standards (up to 500 Degrees Fahrenheit), as well as exceptional low-temperature protection (to -30 Degrees Fahrenheit), bringing quick cold-weather starting and ultra-fast protection to your engine. Mobil 1 advanced full-synthetic motor oil meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy. Mobil 1 advanced full-synthetic motor oil 5W-30 also helps control oxidation to prevent oil breakdown and is recommended by ExxonMobil for all types of modern cars, SUVs, light vans, and light trucks, including those with high-performance, turbocharged, supercharged, multi-valve, or fuel-injected engines. Mobil 1 is America’s leading selling synthetic motor oil brand at retail, (3) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR.

Product Features:

• Mobil 1 advanced full-synthetic motor oil 5W-30 utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness.
• Helps protect critical engine parts for up to 10,000 miles between oil changes, controlling oxidation to prevent oil breakdown and maintaining excellent viscosity
• Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
• Helps extend engine life by working to prevent damaging deposits and sludge buildup
• Provides excellent internal engine heat protection (up to 500 Degrees F) and low temperature protection (to -30 Degrees F)
• Manufacturer Part Number: 125222

Pennzoil Platinum High Mileage Full Synthetic 10W-30 is designed to maximize engine protection and is formulated to help stop leaks in engines with more than 75,000 miles. Backed by a 15,000-mile protection guarantee to keep you covered between oil changes and for the long run (see Warranty Information below), it is the first of its kind full synthetic high mileage motor oil made with natural gas and designed to deliver less oil burn off than other high mileage oils (based on Sequence IIIH results). Pennzoil Platinum High Mileage motor oil conditions seals on older engines to give added protection to high-mileage vehicles. It offers complete protection mile after thrilling mile as it protects engines from loss of horsepower, offers excellent performance in extreme temperatures, provides unsurpassed wear protection (based on Sequence IVA wear test using SAE 5W-30), and provides better fuel economy (based on the latest industry standards). (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 vehicles 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.)

Product Features:

• Full synthetic 10W-30 engine oil designed for vehicles with more than 75,000 miles
• Backed by a 15,000-mile protection guarantee to keep you covered between oil changes and in the long run
• Keeps pistons cleaner than required by the toughest industry standards (based on Sequence IIIH results; does not apply to Pennzoil Platinum Euro motor oil)
• Proven to help stop leaks for engines with more than 75,000 miles
• Formulated to deliver less oil burn-off than high-mileage motor oils made from crude oil
• Provides better fuel economy (based on the latest industry standards) and helps protect horsepower
• Provides faster low-temperature oil flow and protects in extreme heat
• Exceeds the requirements of the following industry specifications: API SP, API SP-Resource Conserving, and all previous categories; ILSAC GF-6A
• Meets or exceeds the following OEM requirements: Chrysler MS-6395
• For a full list of equipment approvals and recommendations, please consult your local Shell Technical Help Desk and always consult your owner’s manual

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.)

Product Features:

• Our most advanced full synthetic 5W-30 engine oil, designed for unbeatable engine protection
• Pennzoil Ultra Platinum comes with a 20-year, 750,000 mile warranty to protect your engine and give you peace of mind to drive every mile as hard as you can
• Made with natural gas
• Outstanding performance in extreme temperatures
• Designed for high-performance engines, it helps protect engines from loss of power
• Provides unsurpassed wear protection for your engine (based on Sequence IVA wear test using SAE 5W-30)
• Provides better fuel economy (based on the latest industry standard)
• Exceeds the requirements of the following industry specifications: API SP-Resource Conserving and all previous categories; ILSAC GF-6A; ACEA A1/B1 and ACEA A5/B5
• Meets or exceeds the following OEM requirements: Chrysler MS-6395; WSS-M2C961-A1; Honda/Acura HT0-06
• For a full list of equipment approvals and recommendations, please consult your local Shell Technical Help Desk and always consult your owner’s manual
• Extends Engine Life: The advanced additive technology combined with the high-quality base oil helps extend engine life, providing superior protection and performance.

Formulated to perform well in gasoline engines without sacrificing protection in diesel engines, Shell Rotella T6 Multi-Vehicle 5W-30 heavy duty engine oil is a full synthetic motor oil that features exclusive Triple Protection Plus technology. Blended with lower levels of phosphorous compared to most diesel engine oils, it is able to meet both API CK-4 and SN performance standards allowing mixed fleet customers to consolidate lubricants. Designed to provide hard-working protection that adapts to your driving conditions, Shell Rotella T6 Multi-Vehicle provides excellent protection against wear, deposits, and oil breakdown, delivers demonstrated 2.8% improvement in fuel economy, and provides excellent extreme high/low-temperature protection. It also offers improved oxidation performance (relative to CJ-4 quality engine oils) and a low-ash formulation that helps protect exhaust catalysts and particulate filters found on the latest low-emission vehicles. With its wide range of specifications and approvals from many of the world’s leading engine makers, it is ideal for on- or off-road applications. Shell Rotella T6 MV is backed by a limited warranty valid up to 15 years or 500,000 miles (whichever comes first), guaranteed. (Compared to conventional SAE 15W-40 engine oil. 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.)

Product Features:

• Full synthetic 5W-30 engine oil with Triple Protection Plus technology protects against wear, deposits, and oil breakdown, and improves high/low-temperature performance
• Performs extremely well in both diesel and gasoline engines, allowing mixed fleet customers to consolidate lubricants
• Better fuel economy performance of up to 2.8%, helping to deliver fuel savings without compromising engine protection or durability
• Blended with lower levels of phosphorous compared to most diesel engine oils
• Strong oxidation protection helps to minimize the formation of acids and oil thickening, resulting in a longer, cleaner engine life
• Excellent cold temperature flow for easier start-ups in extreme cold temperatures
• Limited warranty valid up to 15 years or 500,000 miles (whichever comes first), guaranteed, if you exclusively use Shell Rotella T6 MV Full Synthetic heavy-duty engine oil
• Meets or exceeds the following industry specifications: API CK-4, CJ-4, CI-4 Plus, CI-4; API SN; ACEA E6; JASO DH-2
• Meets or exceeds the following OEM requirements: Caterpillar ECF-2/ECF-3; Cummins CES 20081, 20086; DDC DFS 93K222, 93K218; DTFR 15C110 (prev. MB 228.51); MACK EO-S 4.5, EO-O Premium Plus; MTU Category 3.1; Volvo VDS 4.5, VDS-4
• For a full list of equipment approvals and recommendations, please consult your local Shell Technical Help Desk and always consult your owner’s manual

T4 Triple Protection 15W-40 Diesel Engine Oil delivers advanced performance and reliability for hardworking diesel engines. This synthetic blend oil is engineered to provide enhanced wear protection, improved deposit control, and exceptional cleanliness, ensuring your engine operates efficiently under demanding conditions. With its advanced formula, it offers superior protection against oil oxidation, helping to maintain optimal performance over time. Designed specifically for diesel engines, it supports sustained emission control system durability, making it compatible with particulate filters and after-treatment systems. The 15W-40 SAE weight ensures reliable performance across a range of temperatures, adapting seamlessly to varying driving conditions. Whether you’re tackling heavy-duty tasks or long hauls, this oil is built to keep your engine running smoothly while extending its lifespan.

Product Features:

• Enhanced protection against oxidation.
• Enhanced wear protection
• Improved deposit control/cleanliness
• Sustained emission control system durability in particulate filters and after-treatment systems. (Compared to prior Shell Rotella Triple Protection 15W-40.)
• Provides enhanced protection against oil oxidation for more efficient operation

Valvoline High Performance Synthetic Gear Oil is the thermally stabile extreme pressure lubricant that offers outstanding protection for gearboxes and differentials in passenger cars, light trucks, and sport utility vehicles. Combined with high quality synthetic base oils, our formula’s superior additives help reliably safeguard against severe temperatures, shock loads, foaming, scuffing, scouring, corrosion and pitting in high load, high torque and high horsepower conditions. Can be used in conventional and limited slip hypoid differentials where GL-5 is specified as well as non-synchronized manual transmissions that require GL-4. Protect your gears with Valvoline, the No: 1 gear oil brand.

Product Features:

• High Performance Extreme-Pressure Additives Help Minimize Wear In High Pressure And High Temperature Conditions
• Exceptional High And Low Temperature Protection Can Easily Handle Both Winter And Summer Conditions For Dependable Coverage And Protection Year-Round
• Reduces Chattering And Protects Gear Teeth From Oxidation, Rust, And Wear
• Fights Corrosion And Rust With Emulsifying Agents And Safeguards Against Impurities, Oxidation And Thermal Breakdown
• Superior Additives Help Reliably Safeguard Against Severe Temperatures, Shock Loads, Foaming, Scuffing, Scouring, Corrosion And Pitting In High Load, High Torque And High Horsepower Conditions

Valvoline High Performance Gear Oil is an extreme pressure gear lubricant formulated with quality base oils and superior additives that helps protect against severe temperatures, shock loads, scuffing, scouring, corrosion and pitting in high speed, high load, high torque and high horsepower conditions.

Product Features:

• Formulated for reliable gear protection
• Protects against severe temperatures to help extend service life
• Formulated with extreme-pressure additives to minimize gear wear from shock loads
• Helps protect against gear wear from scuffing, scouring, corrosion and pitting
• Recommended for conventional hypoid differentials and non-synchronized manual transmissions in passenger cars, light trucks, sport utility vehicles, vans and heavy-duty trucks where an API-GL5 or GL-4 fluid is specified
• PLEASE NOTE: Valvoline recommends SynPower Full Synthetic Gear Oil for limited slip differentials