1991 Cadillac Eldorado Lubricants

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-20 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: 5 quarts.

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.) Volume: 1 gallon.

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.) Volume: 1 quart.

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(1) 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(1)(1), 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 ((1)Based on Sequence IVA wear test; Sequence IIIH oxidation and deposit test; and the Sequence VH sludge test.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.. .) Volume: 6 gallons.

Castrol GTX Full Synthetic High Mileage 5W-30 is a full synthetic motor oil specially formulated for vehicles with over 75,000 miles. It’s been engineered to provide Superior Protection in 7 Critical Areas including corrosion prevention, sludge control, timing and friction wear and unique protection for your emission system. As your vehicle ages, it becomes more prone to catalytic converter failure, one of the most common and costliest problems faced by higher mileage vehicles. All motor oil contains phosphorus to prevent engine wear, but phosphorus is known to be effectively poisonous to catalytic converters. Castrol GTX Full Synthetic High Mileage is formulated with Phosphorous Replacement Technology, a proprietary additive that reduces the level of harmful phosphorus to protect the catalytic converter and preserve the life of your emission system. It’s full synthetic formula provides enhanced protection against extreme internal temperatures and also includes specialized additives to reduce leaks, oil burn off and power robbing deposits. Castrol GTX Full Synthetic High Mileage provides maximum protection to help extend the life of your high mileage car. Volume: 1 quart.

Formulated to meet the specific requirements of Toyota, Lexus, and Scion vehicles equipped with conventional (non-CVT) transmissions that require the use of ATF T-IV. Recommended for service-fill in all Toyota, Lexus, and Scion automatic transmissions where ATF T-IV 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.

Mobil 1 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 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 15,000 miles or 1 year, whichever comes first (2)Source: Circana/ Retail Tracking Service/ Dollar Sales/ 52 weeks ending February 1, 2025 Volume: 5 quarts.

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(1) 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). ((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: 5 gallons.

Castrol EDGE Euro 5W-30 A3/B4 is an advanced full synthetic motor oil engineered to exceed manufacturer test limits ensuring the highest level of protection and maximum performance for European cars. European car manufacturers create unique motor oil specifications to ensure the lubricant can withstand the intense pressure, heat and friction generated in a high output engine. To ensure compliance, rigorous engine tests are developed, with approval granted only when the oil achieves the minimum values required in each test. Castrol EDGE Euro Car fluids are formulated to exceed these requirements and deliver maximum protection and performance. Volume: 5 quarts.

TranSynd 668 Full Synthetic Transmission Fluid is engineered to deliver exceptional performance and durability for your vehicle’s transmission system. Designed with advanced features, it ensures improved gear protection and extended clutch-friction durability, making it ideal for both general-duty and severe-duty transmissions. With the ability to support extended drain intervals of up to 300,000 miles or 48 months in general-duty use and up to 150,000 miles or 48 months in severe-duty conditions, this fluid offers outstanding value and reduced maintenance downtime. Its excellent shear stability maintains consistent viscosity, providing reliable wear protection throughout the drain interval. Additionally, the fluid’s superior thermal and oxidation stability minimizes deposit formation, while its full-synthetic base ensures optimal performance across a wide temperature range. Enhanced corrosion and foaming resistance further contribute to the longevity and efficiency of your transmission system. Packaged in a convenient 1-gallon container, TranSynd 668 is the ultimate choice for those seeking high-performance, long-lasting transmission fluid. Volume: 1 gallon.

Castrol GTX 10W-30 provides superior sludge protection to help extend engine life. Severe driving conditions such as heavy traffic, poor fuel quality, harsh driving conditions and exceeding oil change intervals can all cause the build-up of a thick, tar like substance called sludge. Sludge can block your engine’s vital oilways like cholesterol and if untreated, can rob an engine of its power and ultimately its life. Castrol GTX is specially engineered to prevent harmful build-up of sludge while protecting against new oil splatter formation better than tough industry standards. Volume: 5 quarts.

Castrol EDGE High Mileage 10W-30 is the natural choice for drivers who demand maximum performance from their high mileage car. It’s been engineered to provide Superior Protection in 7 Crtitical Areas including corrosion prevention, sludge control, timing and friction wear and unique protection for your emission system. As your vehicle ages, it becomes more prone to catalytic converter failure. Castrol EDGE High Mileage is formulated with a with Phosphorous Replacement Technology, a proprietary additive that reduces the level of harmful phosphorus to protect the catalytic converter and preserve the life of your emission system. It’s full synthetic formula provides enhanced protection against extreme internal temperatures and also includes specialized additives to reduce leaks, oil burn off and power robbing deposits. Castrol EDGE High Mileage helps your car defy its miles and extend maximum performance. Volume: 1 quart.

Castrol GTX High Mileage 10W-30 is specially formulated for vehicles with over 75,000 miles. It’s a synthetic blend engine oil formulated to provide Superior Protection in 7 Critical Areas including corrosion prevention, sludge control, timing and friction wear and unique protection for your emission system. As your vehicle ages, it becomes more prone to catalytic converter failure, one of the most common and costliest problems faced by higher mileage vehicles. All motor oil contains phosphorus to prevent engine wear, but phosphorus is known to be effectively poisonous to catalytic converters. Castrol GTX High Mileage 10W-30 is formulated with Phosphorous Replacement Technology, a proprietary additive that reduces the level of harmful phosphorus to protect the catalytic converter and preserve the life of your emission system. It also includes specialized additives to reduce leaks, oil burn off and power robbing deposits. Castrol GTX High Mileage 10W-30 provides maximum protection to help extend the life of your high mileage car. Volume: 1 quart.

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.) 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: 5 quarts.

Pennzoil Platinum Full Synthetic 5W-30 is designed to maximize engine protection and is backed by a 15,000-mile protection guarantee (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. (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.) Volume: 1 quart.

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.) Volume: 5 quarts.