2006 Audi A4 Oil and Lubricants

Castrol® GTX® High Mileage motor oil is the leading consumer high-mileage brand. It’s a synthetic blend motor oil that helps extend the life of your engine by protecting against sludge, wear and burn-off. Castrol GTX High Mileage is also engineered to protect your emission system. One of the leading causes of ‘check engine’ lights coming on in high mileage cars is catalytic converter failure, which can be caused by phosphorous in engine oil. While phosphorous is present in all engine oils for its ability to reduce wear, it is effectively poisonous to catalytic converters. Castrol GTX High Mileage is formulated with Phosphorous Replacement Technology to replace some of the phosphorous with an advanced additive that maintains robust wear protection. When you want to extend the life of your high mileage engine and emission system, there is no better choice than Castrol GTX High Mileage.

Product Features:

• Phosphorus Replacement Technology to help extend the life of the emission system
• Superior dispersancy that fights sludge build up
• Exceptional oil burn-off protection exceeding industry standards (based on API and ACEA volatility specifications)
• Seal conditioners to help reduce leaks
• Advanced additives that minimize engine wear
• Improved fuel economy (in 5W-20, 5W-30 and 10W-30 grades versus industry specifications)
• Meets or exceeds API SP/SN PLUS/SN and ILSAC GF-6 specs
• Engine Longevity: Castrol GTX High Mileage motor oil is specifically designed to extend the life of high mileage engines by protecting against sludge, wear, and burn-off.
• Emission System Protection: Engineered to safeguard your emission system, this motor oil helps prevent catalytic converter failure, a common cause of ‘check engine’ lights in high mileage vehicles.
• Synthetic Blend Composition: This 10W-30 synthetic blend motor oil offers superior performance and protection compared to conventional oils, making it ideal for high mileage engines.
• Trusted Brand: As a leading consumer high-mileage brand, Castrol GTX High Mileage provides reliable and effective engine protection, ensuring your vehicle runs smoothly for longer.

Environmental factors such as poor fuel quality, hot weather and stop-start driving conditions can lead to sludge, varnish and carbon build-up in your engine: three factors that reduce engine life, power and fuel economy. Castrol Ultraclean is a synthetic blend engine oil available in 0W-20, 5W-20 and 5W-30 grades. Its double-action formula has been proven to clean away the sludge that can block engine oilways* and helps prevent new sludge formation thanks to its synthetic technology. In fact, it provides up to 1.4X better sludge protection than is demanded by the latest industry standard. If keeping your engine clean is important to you, it’s good to know that no other oil keeps engines cleaner.

Product Features:

• 1.4X superior sludge protection compared to tough industry standards (As measured in the Sequence VH Sludge test vs. API SP test limits)
• Advanced protection against viscosity and thermal breakdown
• Superior protection against high-temperature deposits
• Premium-quality base oils and anti-wear additives that help extend the life of your engine
• Double-Action Formula: The synthetic blend engine oil features a double-action formula that effectively cleans away existing sludge and prevents new sludge formation.
• Versatile Grade Options: Available in 0W-20, 5W-20, and 5W-30 grades, Castrol Ultraclean offers flexibility to suit various engine requirements.
• Enhanced Engine Performance: By reducing sludge, varnish, and carbon build-up, this oil helps improve engine life, power, and fuel economy.
• Synthetic Blend Composition: The GTX Ultraclean 5W-30 Synthetic Blend Motor Oil combines the benefits of synthetic technology with the reliability of a standard oil class.

Castrol GTX is a premium conventional motor oil that has been helping to extend engine life for over 50 years. It continues to innovate to meet the needs of consumers and vehicle manufacturers and remains among the most trusted brands today. 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. If not addressed, it can rob a car’s engine of its power and ultimately its life. GTX is specially engineered to prevent harmful build-up of sludge while protecting against new oil splatter formation better than tough industry standards.

Product Features:

• Premium quality base oils and anti-wear additives to help extend the life of your engine
• Advanced protection against viscosity and thermal breakdown
• Superior protection against engine sludge (when tested in engines with a high level of sludge)
• Helps minimize oil consumption
• Meets ilsac gf-6 specs
• Unsurpassed thermal breakdown protection: GTX Engine Oil, 20W50 provides superior protection against thermal breakdown, ensuring that your engine stays cool and runs smoothly even under extreme conditions.

Castrol EDGE High Mileage 10W-40 Full Synthetic Motor Oil is specially formulated for vehicles with over 75K miles, making it the natural choice for consumers who want to extend maximum engine performance. Engineered with Phosphorus Replacement Technology to preserve the catalytic converter and the emission system, it offers 10X better high temperature performance and 6X better wear protection compared to industry standards. From the makers of the No. 1 High Mileage brand, this full synthetic oil meets API SP/SN PLUS specifications. Available in grades 5W-20, 5W-30, 10W-30, and 10W-40, Castrol EDGE High Mileage is the ultimate solution for maintaining your high-mileage vehicle.

Product Features:

• 10X Better High Temperature performance – As measured in Seq IIIH engine test vs. API SP limit
• 6X Better Wear Protection – As measured in Seq IVA test vs. latest test limit
• From the makers of the No. 1 High Mileage brand
• Meets API SP/SN PLUS
• Castrol EDGE offers motor oils that meet OEM specification approvals or licenses that cover over 97.3% of the US car parc.
• Available in the following grades: 5W-20, 5W-30, 10W-30, and 10W-40
• Try Castrol EDGE High Mileage today
• Specially formulated for vehicles with over 75K miles to extend maximum engine performance.
• Engineered with Phosphorus Replacement Technology to preserve the catalytic converter and emission system.

Mobil 1 advanced full synthetic motor oil 5W-30 helps to extend engine life for vehicles of all ages. Mobil 1 advanced synthetic motor oil is designed to deliver outstanding engine protection from the five factors that can damage engines over time and protect critical engine parts for up to 10,000 miles between oil changes. Its uniform synthetic oil molecules reduce friction, helping to prevent deposits and sludge buildup. This technologically advanced motor oil formulation provides excellent internal engine heat protection (up to 500 degrees Fahrenheit), and low-temperature protection (to -30 degrees Fahrenheit), supporting quick cold-weather starting and ultra-fast protection. 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. Available in 1-qt. and 5-qt. bottles, 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 vehicles, including high-performance turbo-charged, and supercharged gasoline and diesel multi-valve fuel-injected engines found in passenger cars, SUVs, light vans, and light trucks. Mobil 1 is America’s leading synthetic motor oil brand at retail, recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR®. (Protects for up to 10,000 miles or 1 year, whichever comes first. To learn more about the Mobil 1 Limited Warranty, visit Mobil.US. Source: The NPD Group/ Retail Tracking Service/ Dollar Sales/ 52 weeks ending January 2, 2021)

Product Features:

• Mobil 1 advanced full synthetic motor oil 5W-30 helps to protect your engine from the five factors that can damage engines over time
• Helps to 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)

Liqui Moly’s Leichtlauf High Tech 5W-40 is a fully synthetic, premium low-friction engine oil for all-season use in gasoline and diesel engines without diesel particulate filters (DPF). The combination of innovative base oils – based on synthesis technology and the latest additive technology – guarantees an engine oil that reduces oil and fuel consumption and that ensures fast lubrication of the engine. Depending on the manufacturer instructions, oil change intervals of up to 40,000 km are possible. Ideally suited for modern gasoline and diesel engines with multi-valve technology, turbocharger and with or without charge air cooling. Especially suitable where there are long intervals between changes and heavy duty engine requirements.

Product Features:

• All season use reliable at high and low temperatures
• Suited for modern gasoline and diesel engines with multivalve technology, turbocharger and with or without charge air cooling
• An engine oil that reduces oil and fuel consumption
• Ensures fast lubrication of the engine
• Made in germany
• Low-friction formula: Leichtlauf LIQUI-MOLY Synthetic Engine Oil 5W-40 is a premium, fully synthetic engine oil that reduces oil and fuel consumption, thanks to its low-friction formula.

Mobil 1 ESP 0W-30 is an advanced full synthetic oil specially formulated for passenger car diesels that have the latest diesel particulate filters (DPFs) and gasoline catalytic converters (CATs). The proprietary full synthetic motor oil is designed to help deliver outstanding performance and protection in conjunction with potential fuel economy benefits. Mobil 1 ESP has active cleaning agents that help to reduce deposits and sludge buildup for a cleaner engine. Helps to reduce oil aging with outstanding oxidation stability for extended drain interval protection. Low ash, sulfur, and phosphorous content help to reduce particulate buildup in DPFs and reduce poisoning of CATs. Excellent low temperature capabilities for quick cold-weather starting and ultra-fast protection. Mobil 1 is America’s leading synthetic motor oil brand at retail, recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR. (Source: The NPD Group/ Retail Tracking Service/ Dollar Sales/ PCMO Full Synthetic/ 52 weeks ending July 1, 2023)

Product Features:

• Mobil 1 esp 0w-30 full synthetic oil is formulated for passenger car diesels with diesel particulate filters (dpfs ) and gasoline catalytic converters (cats )
• Low ash, sulfur, and phosphorous content help to reduce particulate build up in dpfs
• Active cleaning agents that help to reduce deposits and sludge buildup for a cleaner engine
• Helps to reduce oil aging with outstanding oxidation stability for extended drain interval protection
• Excellent low temperature capabilities for quick cold-weather starting and ultra-fast protection
• Manufacturer part number: 126609

Castrol® Ultraclean synthetic blend engine oil is our cleanest GTX ever. Environmental factors such as poor fuel quality, hot weather and stop-start driving conditions can lead to the buildup of sludge that can reduce engine life, power and fuel economy. Castrol Ultraclean has a double-action formula proven to clean away the sludge that can block engine oilways and helps prevent new sludge formation from occurring. In fact, it provides up to 1.4X better sludge protection than is demanded by the latest industry standard (as measured in the Sequence VH Sludge test vs. API SP test limits). No other oil keeps engines cleaner.

Product Features:

• Premium-quality base oils and anti-wear additives that help extend the life of your engine
• 1.4X superior sludge protection compared to tough industry standards, as measured in the Sequence VH Sludge test vs. API SP test limits
• Advanced protection against viscosity and thermal breakdown
• Superior protection against high-temperature deposits
• Meets or exceeds API SP/SN PLUS/SN, ILSAC GF-6 and latest Ford specs
• Double-Action Formula: Castrol Ultraclean’s unique double-action formula effectively cleans away existing sludge and prevents new sludge formation, ensuring optimal engine performance.
• Enhanced Engine Life and Performance: Designed to combat environmental factors like poor fuel quality, hot weather, and stop-start driving conditions, which can reduce engine life, power, and fuel economy.
• Synthetic Blend Composition: Combines the benefits of synthetic and conventional oils, offering superior protection and performance in a 5W-30 SAE oil weight.
• Cleanest GTX Ever: Marketed as Castrol’s cleanest GTX oil, ensuring that no other oil keeps engines cleaner, making it an ideal choice for maintaining engine cleanliness and efficiency.

Pennzoil Platinum Euro SAE 5W-40 Full Synthetic motor oil with PurePlus Technology is a full synthetic motor oil that is formulated for most Mercedes-Benz, VW, Porsche & Audi Vehicles. PurePlus Technology converts pure natural gas into a base oil with lower friction, better low temperature properties and greater stability than conventional motor oil made from crude. Pennzoil Platinum Euro Full Synthetic motor oil is formulated for most European vehicles. It can be used in both passenger car gasoline and light duty diesel applications.

Product Features:

• Nothing keeps your engine closer to factory clean
• Better fuel economy
• Protects horsepower
• Superior wear and corrosion protection
• Excellent performance in extreme temperatures
• PurePlus Technology: The PurePlus Technology used in the Pennzoil Platinum Euro Full Synthetic Engine Oil provides complete protection to your engine. It converts pure natural gas into a base oil with lower friction, better low temperature properties and
• For a full list of equipment approvals and recommendations, please consult your local shell technical help desk and always consult your owner’s manual.

FRAM Full Synthetic EURO Formula 5W-40 is premium fully synthetic motor oil formulated  with high quality synthetic base oils and the latest additive technology to provide the ultimate  protection for your engine. FRAM Full Synthetic EURO Formula 5W-40 has superior detergency  to provide engine cleanliness yet is formulated as a Mid-SAPS oil to protect emissions control  systems including diesel particulate filters (DPF). This engine oil meets the performance  requirements of many European OEM specifications including Mercedes Benz, Volkswagen,  BMW, Renault, Porsche, Peugeot and GM dexos2.

Product Features:

• Outstanding thermal and oxidation stability
• Excellent sludge and varnish protection
• Dpf compatible
• Volatility: lowers oil vaporization and consumption at extreme conditions
• Always refer to your vehicles operating manual to select the correct grade oil for your engine.
• Premium Fully Synthetic Engine Oil: FRAM Full Synthetic EURO Formula 5W-40 is a premium fully synthetic engine oil that is formulated with high-quality synthetic base oils and the latest additive technology to provide the ultimate protection for your engi

FRAM Full Synthetic High Mileage SAE 5W-30 is a full synthetic motor oil blended with high quality synthetic base stocks and and enhanced additives that meet the stringent API: SP, SN, SM, SL, SJ, and ILSAC GF-6A specifications while reducing leaks and oil consumption in worn or higher mileage engines. Formulated with synthetic base stocks, this oil offers increased oxidation inhibition performance as well as increased high and low temperature performance when compared against conventional oils. The FRAM Full Synthetic High Mileage SAE 5W-30 is formulated to help clean out sludge buildup and keep engines running clean and with increased efficiency and power. Specially designed for engines with over 75,000 miles, the FRAM Full Synthetic High Mileage SAE 5W-30 provides the ultimate protection for your higher mileage engine. Specifically formulated for the rigorous environment of gas-direct engine (GDI) and turbo gas-direct engine (TGDI) designs as well as providing increased protection for carbureted or normally fuel injected engines. FRAM Full Synthetic High Mileage SAE 5W-30 contains additive technology designed to prevent low-speed pre-ignition (LSPI). LSPI can lead to pre-mature engine failure and is a major concern of the automotive industry for vehicles employing GDI or TGDI technology. This oil also provides increased wear protection, oxidation and shear stability for higher mileage vehicles over previous oil categories.

Product Features:

• Faster oil flow at start-up
• Fuel efficiency gains over heavier grade oils
• Reduces oil cumsumption
• Excellent sludge and varnish protection
• Slows engine leaks
• Outstanding thermal and oxidation stability
• Lowers oil vaporization and consumption at extreme conditions
• Always refer to your vehicles operating manual to select the correct grade oil for your engine.

CASTROL EDGE Euro Car 5W-40 A3/B4 Full Synthetic Motor Oil is a high-performance motor oil that is designed to provide superior engine protection and performance. This full-synthetic motor oil is optimized to deliver 40% better performance than other synthetic oils and is recommended by leading auto manufacturers. It provides engine protection for the entire drain interval and meets API CF/SN, ACEA A3/B4, BMW LL 01, MB Approval 229.5/226.5, and VW 502 00/505 00 specifications. This motor oil is 10x stronger against high-temperature oil thickening and helps improve fuel economy. It is formulated for the latest technology, high-output engines that operate at extreme temperatures and covers European OEM gasoline specifications for BMW, Mercedes-Benz, Porsche, and VW/Audi.

Product Features:

• Optimized to deliver 40% better performance than required by acea standards
• Recommended by world leading auto manufacturers
• Engine protection for the entire drain interval even under extreme pressure of high output engines
• Meets api cf/sn, acea a3/b4, bmw ll 01, mb approval 229.3/229.5, porsche a40, vw 502 00/505 00, renault rn 0700/0710
• 10x stronger against high temperature oil thickening vs. industry standards(seq iiih vs api sn plus limits)
• Helps improve fuel economy
• Exceeds: acea a3/b4. api sn/cf, bmw longlife-01, mb-approval 229.3, porsche a40, vw 502 00 / 505 00

Castrol GTX High Mileage motor oil is the leading consumer high-mileage brand. You won’t need to worry about using a high mileage oil or synthetic because this is both. It’s a synthetic blend engine oil that helps extend the life of your engine by protecting against sludge, wear and burn-off and also liquid engineered to protect your emission system. One of the leading causes of ‘check engine’ lights coming on in high mileage cars is actually catalytic converter failure, which can be caused by phosphorous in engine oil. While phosphorous is present in all engine oils for its ability to reduce wear, it is effectively poisonous to catalytic converters. Castrol GTX High Mileage Motor Oil is liquid engineered with Phosphorous Replacement Technology to replace some of the phosphorous with an advanced additive that maintains robust wear protection. When you want to extend the life of your high mileage engine and emission system and find out how many miles you can go on a high-mileage oil, there is no better choice than Castrol GTX High Mileage Motor Oil.

Product Features:

• Phosphorus replacement technology to help extend the life of the emission system
• Superior dispersancy that fights sludge build up
• Exceptional oil burn-off protection exceeding industry standards (based on api and acea volatility specifications)
• Improved fuel economy (in 5w-20, 5w-30 and 10w-30 grades versus industry specifications)
• Provides extra protection for older vehicles: Castrol GTX High Mileage Engine Oil is specifically designed to provide extra protection for high mileage engines, helping to extend the life of your vehicle.
• Synthetic blend composition: This engine oil is a synthetic blend, combining the benefits of both conventional and synthetic oils to provide superior protection against sludge, wear, and burn-off.

FRAM Conventional High Mileage 5W30 Engine Oil is specially designed with enhanced  additives to help reduce leaks and oil consumption in worn or higher mileage engines. This oil is formulated to help clean out sludge buildup and keep engines running clean and with  increased efficiency and power. They are specially designed for engines with over 75,000 miles.  FRAM Conventional High Mileage 5W30 Engine Oil will protect domestic and imported vehicles and  equipment powered with either gasoline or light duty diesel engines – even those that are turbo charged or super-charged. This high-quality oil is specifically formulated to meet or exceed  all new car manufacturers’ warranty requirements as well as the stringent industry standards API  SP/CF, and 5W30 grade will also meet or exceed the ILSAC GF-6A Resource Conserving Service Category.

Product Features:

• Formulated with a unique combination of premium base oils and an enhanced additive system
• Provides increased protection in higher mileage engines
• Helps restore seal condition to reduce oil consumption
• Increases protection against high temperature deposits and ring sticking
• Always refer to your vehicles operating manual to select the correct grade oil for your engine.
• Specially formulated for engines with over 75,000 miles to help reduce leaks and oil consumption.

Quaker State 10W-40 conventional motor oil 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 10W-40 Motor Oil exceeds the requirements of the following industry specifications: API SN and all previous categories. For a full list of equipment approvals and recommendations, please consult your local Quaker State Technical Help Desk and always consult your owners manual.

Product Features:

• Conventional 10W-40 that provides durable wear protection and reduces engine wear
• Provides corrosion protection against harmful acids generated by engine contaminants
• Maintains viscosity from start to finish, providing optimal oil film protection
• Helps engines survive daily commutes from high-speed highway operation to repetitive, stop-and-go driving
• Combats engine sludge and deposits
• Formulated to exceed the requirements of industry specification API SN and all previous categories
• Formerly known as Quaker State Advanced Durability 10W-40 motor oil
• Rust Protection: Provides rust protection from harmful acids generated by engine contaminants, extending the life of your engine.

Pennzoil Platinum® Euro is designed for complete protection and performance for European vehicles. Pennzoil Platinum Euro helps extend engine life and protects for up to 15 years or 500,000 miles, whichever comes first. Guaranteed.1 Pennzoil Platinum Euro is made from natural gas, not crude. Its base oil is 99.5% free from engine clogging impurities. The Proof is in the Pennzoil. 1 Based on Sequence IIIH results . Does not apply to Pennzoil Platinum® Euro motor oil.

Product Features:

• No other leading motor oil provides better protection from friction1? 1 Based on Sequence IVA wear test using SAE 0W-40.
• Better Fuel Economy2 2 Meets the requirements of MB 229.5 which includes Fuel Economy Improvement (FEI) requirement as determined in industry standard gasoline engines
• Protects Horsepower
• Nothing keeps your engine close to factory clean3 3 Based on Sequence vh and M-111 sludge test using SAE 0W-40.
• Complete Protection and Performance: Pennzoil Platinum« Euro is specifically designed to provide comprehensive protection and optimal performance for European vehicles.
• Complete Protection and Performance: Pennzoil Platinum® Euro is specifically designed to provide comprehensive protection and optimal performance for European vehicles.
• Extended Engine Life: This full synthetic 5W-40 engine oil helps extend engine life, offering protection for up to 15 years or 500,000 miles, whichever comes first.
• High Purity Base Oil: Made from natural gas, not crude, Pennzoil Platinum« Euro’s base oil is 99.5% free from engine-clogging impurities, ensuring cleaner engine performance.
• High Purity Base Oil: Made from natural gas, not crude, Pennzoil Platinum® Euro’s base oil is 99.5% free from engine-clogging impurities, ensuring cleaner engine performance.
• Full Synthetic Composition: As a full synthetic oil, it offers superior performance and protection compared to conventional oils, making it ideal for high-performance European engines.
• Pennzoil Platinum« Euro meets the rigorous demands of European vehicle manufacturers, ensuring reliability and efficiency.
• Pennzoil Platinum® Euro meets the rigorous demands of European vehicle manufacturers, ensuring reliability and efficiency.

Give your higher mileage engine the care it deserves with Mobil 1 High Mileage full-synthetic motor oil 10W-40. This formula utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness to vehicles with over 75,000 miles. Mobil 1 High Mileage motor oil extends engine life by reducing friction and preventing deposits and sludge buildup, keeping critical engine parts clean and protected for up to 10,000 miles between oil changes. (1) Mobil 1 helps to keep your engine running at lower temperatures (2) and is proven to cool engine temperatures by over 10%. (3) Mobil 1 High Mileage full-synthetic motor oil 10W-40 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 #1 selling synthetic motor oil brand at retail, (4) trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR. ( (1) Protects for up to 10,000 miles or 1 year, whichever comes first. To learn more about the Mobil 1 Limited Warranty, visit Mobil.US. (2) Compared to conventional oil. (3) Based on proprietary engine testing¿results may vary. (4) Source: The NPD Group/ Retail Tracking Service/ Dollar Sales/ PCMO full-synthetic/ 52 weeks ending Feb 25, 2023)

Product Features:

• Mobil 1 high mileage full-synthetic engine oil 10w-40 is designed for engines with over 75,000 miles to go up to 10,000 miles between oil changes. (1)
• Utilizes Mobil 1’s signature triple action formula to deliver outstanding engine performance, protection, and cleanliness
• 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
• Provides excellent internal engine heat protection (up to 500 degrees f) and low temperature protection (to -30 degrees f)
• Mobil 1 is specially formulated to help remove sludge and lower engine temperatures
• Manufacturer part number: 103536