Protec 184 Engine Oil Filter

Protec 184 Engine Oil Filter for Everyday Driving

The Protec 184 engine oil filter is built for conventional oil service and normal daily driving, including city commuting and highway use. It is a spin-on lube filter with enhanced cellulose media, anti-drain back protection, and a 30 psi bypass setting for dependable oil flow during routine oil changes.

Key Features

• Spin-on engine oil filter for gasoline engine lubrication systems
• Enhanced cellulose media for standard filtration performance
• Anti-drain back valve helps retain oil in the filter after shutdown
• 30 psi bypass relief valve setting supports oil flow during cold starts and restriction events
• 21 micron rating with 95% efficiency at 29 microns per laboratory test data
• Thread size: 3/4-16; height: 5.178 in.; outer diameter: 3.660 in.
• Fits select Audi A4, Audi A6, Volkswagen Passat, Volkswagen Golf, and Volkswagen Jetta applications

Detailed Description

Protec 184 is an engine oil filter for drivers who service vehicles on traditional 3,000 to 5,000 mile oil change intervals. It uses enhanced cellulose filter media to capture contaminants from conventional motor oil while maintaining steady flow rates in everyday driving conditions. Laboratory performance data lists 95% efficiency at 29 microns and a burst pressure rating of 345, supporting routine engine protection in compatible applications.

This part cross-references Wix 51191 and FRAM PH19A for the same application. It is a direct-fit style filter for many older Audi and Volkswagen models, including Audi A4, Audi A6, and Volkswagen Passat applications that use a 3/4-16 spin-on oil filter.

What It Helps Address

• Oil contamination from normal engine wear
• Reduced oil retention after engine shutdown
• Restricted oil flow during cold starts
• Routine maintenance needs for 3,000 to 5,000 mile service intervals
• Filtration service on older Audi and Volkswagen engines

Installation Notes and Tips

Verify thread size, gasket sealing surface, and overall filter dimensions before installation. Pre-fill only if the engine manufacturer allows it, and always lubricate the gasket before tightening. For fitment, this filter is listed for vehicles such as Fits 1996-1999 Audi A4, N/A; Fits 1996-1999 Audi A6, N/A; Fits 1996-1999 Volkswagen Passat, N/A; and Fits 1981-1998 Volkswagen Jetta, N/A. Additional listed applications include Fits 1985-1998 Volkswagen Golf, N/A and Fits 1982-1984 Volkswagen Vanagon, N/A.

Quality Assurance

Protec positions this oil filter for everyday normal driving conditions and conventional oil service intervals. Published test data includes ISO 454812 laboratory performance information, micron efficiency data, and pressure specifications to support product selection for maintenance-focused repairs.