1985 Audi 4000 Oil Filters

K&N premium oil filters are meticulously engineered to offer outstanding filtration and engine protection. Designed to operate with all synthetic, conventional, and blended motor oils, K&N’s pleated synthetic-blend filtration media helps to shield your engine from contaminants and ensure a consistent flow of oil. The heavy-duty canister is engineered to be exceptionally durable, and a one-inch welded hex nut can be used for quick and easy filter removal. Each filter is specifically designed to withstand the service intervals recommended by vehicle manufacturers.

Carquest Standard oil filters are designed to meet the original equipment (O.E.) specifications and the requirements for maintaining new vehicle warranties. Our oil filters use nitrile sealing gaskets and solid steel baseplates to prevent oil leaks. Carquest Standard oil filters feature cellulose media for increased efficiency at capturing dirt and debris. Each Carquest Standard oil filter is built with rugged components for durability and utilizes multifiber, high-density media for optimal engine protection up to 5,000 miles.

Carquest Premium oil filters are built for durability, utilizing enhanced components to protect engines for the extended drain intervals of modern vehicles using conventional or synthetic lubricants. Our oil filters are built with synthetic blend media that provides 2X the capacity and up to 10,000 miles of protection. Carquest Premium filters feature silicone sealing gaskets for better performance in extreme temperatures. Carquest Premium oil filters meet or exceed original equipment (O.E.) specifications and meet the requirements for maintaining a new vehicle warranty.

Product Features:

• Protection for up to 10,000 miles
• Synthetic blend media provides 99.5% efficiency at 20 microns and 2X capacity vs. Standard filters
• Solid metal end caps are designed to be long lasting
• Silicone anti-drain back valve for engine start-up protection
• Heavy-duty steel baseplate provides additional strength to resist leakage
• Heavy gauge steel canister withstands high pressure operating conditions
• Silicone sealing gasket performs better in extreme temperature conditions and longer drain intervals (silicone gasket is new feature introduced as a running change)
• Meets requirements for maintaining new vehicle warranties

PurolatorONE Oil Filters keep engines operating at peak performance with up to 99% Dirt Removal Power. Available for most domestic and import applications, PurolatorONE optimizes engine life for up to 15,000 miles of advanced protection for most vehicles on the road today. Made with a high-density synthetic blend filter media and wear-resistant metal end caps, PurolatorONE maintains its integrity and filtering capabilities between oil changes. PurolatorONE is ideal for a wide range of tough driving conditions, including towing, stop and go traffic, commuting and harsh weather conditions. Offers advanced engine protection, especially when used with all synthetic and high mileage oils.

Product Features:

• Up to 15,000 miles – advanced engine protection
• Ideal for all synthetic and high mileage oils
• 99% Dirt Removal Power
• High-density synthetic blend media
• Silicone anti-drainback valve prevents dry starts
• PTFE treated gasket; Heat resistant – stays flexible for advanced leak protection
• Metal end caps provide stability and integrity for greater wear resistance

K&N premium oil filters are meticulously engineered to offer outstanding filtration and engine protection. The heavy-duty canister is engineered to be exceptionally durable, and a one-inch welded hex nut can be used for quick and easy filter removal. Each filter is specifically designed to withstand the service intervals recommended by vehicle manufacturers.

Mobil 1¿ Extended Performance Oil Filters are built with strong, durable components and are tested and proven to protect 2X as long as auto manufacturers¿ recommended oil change intervals. A high-efficiency synthetic blend media removes over 99% of harmful contaminants keeping oil cleaner, longer. Enhanced nitrile gasket remains pliable to help prevent oil leaks while a durable anti-drain back valve protects against dry starts. Durable, heavy-duty filter canister withstands 9X the normal vehicle oil system operating pressure. These are just some of the advanced technologies that go into making an oil filter that can provide proven protection for up to one full year or 20,000 miles. Meets requirements of the Mobil 1¿ annual protection limited warranty.

Product Features:

• Protects for 20,000 Miles or up to 1 year – GUARANTEED*
• Tested and proven to protect 2X as long as auto manufacturers’ recommended oil change intervals
• Removes over 99% of contaminants – synthetic blend media keeps oil cleaner and holds more dirt than economy filters
• Heavy duty canister withstands 9x the normal vehicle oil system operating pressure
• Designed for use with all engine oil types and brands

FRAM Titanium advanced high-flow synthetic oil filters offer ultimate engine protection for up to 20,000 miles (32,000 kilometers). Engineered with premium synthetic blend media, FRAM Titanium provides over 99% dirt trapping efficiency.

Product Features:

• Proven protection for up to 20,000 miles
• Total Grip textured surface for easy install and removal
• Silicone anti-drain back valve helps ensure safe engine start up
• FRAM Powerflow technology allows for efficient oil flow over the filter media

FRAM Drive¿ is the perfect oil filter for everyday driver. Designed with OE grade synthetic blend media and compatible with both conventional and synthetic oil types, FRAM Drive¿ keeps engine protected for up to 7,500 miles (12,000 kilometers). FRAM Drive¿ is engineered to withstand high temperatures and endure working pressures common in today¿s engines.

Product Features:

• Proven protection for up to 7,500 miles
• Engineered for use with synthetic or conventional motor oil
• Precision Relief Valve provides consistent oil flow, even in cold conditions
• Designed for everyday drivers who perform oil changes at OE (original equipment) recommended intervals

The Mobil1 Extended Performance Oil Filter utilizes synthetic fibers to leave your vehicle with cleaner oil and an engine that performs better and lasts longer. When used with Mobil 1 fully synthetic motor oil, this filter offers dependable protection for your engine.

Product Features:

• Designed for today’s longer service intervals.
• Advanced synthetic fiber-blend filter media for enhanced contaminant removal.
• High-capacity design stores an increased amount of contaminants.
• Reduces resistance to oil flow while improving filter efficiency.
• Withstands up to 5x the normal system operating pressure.

PurolatorBOSS® Premium Oil Filters are the next generation in oil filtration, delivering maximum engine protection for up to 20,000 miles. PurolatorBOSS exclusively features SmartFUSION Technology™ – a full synthetic filter media with reinforced polymer mesh backing for over 99% Dirt Removal Power™. Engineered to work well with all oil types and viscosities, especially full synthetic oil, PurolatorBOSS is ideal for the most demanding driving conditions, including frequent towing and hauling, stop and go traffic, long commutes, long idle periods and extreme climates. Its rugged internal construction withstands wear and high mileage with a heavy duty BOSS Steel Casing™ and an innovative double helix, high-flow center tube for twice the strength of traditional side-seam designed center tubes. Widely available for most vehicles on the road today, PurolatorBOSS combines the latest filter technologies for long-lasting protection and advanced engine performance. Up to 20,000 miles – maximum engine protection; over 99% Dirt Removal Power.™ SmartFUSION Technology™ – a full synthetic filter media with reinforced polymer mesh backing for expanded dirt holding capacity. Silicone anti-drainback valve prevents dry starts. BOSS Steel Casing™ withstands extreme pressure while metal end-caps enhance durability. PuroSEAL Gasket™ made from ethylene-acrylic for maximum leak protection.

Product Features:

• Up to 20,000 miles – maximum engine protection
• Ideal for full synthetic oils
• Over 99% Dirt Removal Power
• SmartFUSION Technology – a full synthetic filter media with reinforced polymer mesh backing for expanded dirt holding capacity
• Silicone anti-drainback valve prevents dry starts
• BOSS Steel Casing withstands extreme pressure while metal end-caps enhance durability
• PuroSEAL Gasket made from ethylene-acrylic for maximum leak protection

CARQUEST Standard Oil Filters give you the level of quality and application you have come to expect from the CARQUEST name.

Product Features:

• 94.1% efficiency rating at 20 microns
• Meets new car warranty requirements
• Precision coil spring relief valve
• Nitrile anti-drainback valve for engine start-up protection
• Metal end caps
• Cellulose/synthetic blended media
• Internally lubricated gasket

Carquest spin-on lube filters protect your engine from wear particles that can otherwise lead to premature parts failure.

Product Features:

• Designed to meet or exceed OE filter performance levels over the entire OE recommended service interval.
• Made in USA

CARQUEST Premium Oil Filters give you the level of quality and performance from the trusted CARQUEST name.

Product Features:

• 99.5% efficiency rating at 20 microns
• Blended media proven for up to 10,000 miles in taxi cab fleet testing
• High efficiency and durable cellulose/synthetic blended media for longer drain intervals
• Silicone anti-drainback valve has 3X the durability verses nitrile for engine start-up protection
• Metal end caps
• Internally lubricated gasket
• Precision coil spring relief valve