Doc's Diesel Oil Filter D5526 | Ford 6.0L/6.4L Super Duty | Replaces FL2016

Overview

Doc's Diesel Oil Filter D5526 is crafted for demanding diesel engines. Built with a heavy-duty metal housing and a high-flow synthetic media, this filter aims to keep oil clean by capturing dirt, metal particles, and other impurities before they reach the engine. It is designed to be compatible with synthetic, conventional, and blended oils, offering a flexible solution for Ford 6.0L and 6.4L Super Duty trucks, as well as the 2003–2005 Excursion.

What you experience in everyday use is a filter that balances sturdy construction with reliable filtration. While no product can guarantee results in every condition, many drivers notice smoother operation and reduced oil contaminants when filters are replaced at appropriate intervals.

Key features and filtration efficiency

• High-flow synthetic media supports efficient oil flow while maintaining robust filtration
• Heavy-duty metal housing designed for durability in tough operating conditions
• Filters out dirt, metal, and debris to help maintain oil cleanliness and engine protection
• Works with synthetic, conventional, or blended oils for flexible maintenance
• 25 micron at 99% efficiency rating for strong debris control

Fitment, interchange, and maintenance

This filter is built for Ford 6.0L Super Duty lineup and the 6.4L series, covering F250, F350, F450, and F550 models from 2003–2010, plus the 6.0L Excursion from 2003–2005. It interchangeably replaces several popular filters, making it a versatile choice for fleets and individual owners alike.

• Interchange: Motorcraft FL2016, Wix 57312/33963, Baldwin P7235, Premium Guard PG5526, Purolator L45526

Real-world use cases and benefits

In daily use, the D5526 aims to deliver consistent filtration during long drives, heavy loads, or extreme conditions. A well-maintained filter can contribute to cleaner oil, potentially supporting smoother engine performance and more predictable maintenance costs. Benefits are described as possibilities based on filtration design and compatibility, rather than guarantees.

Installation and replacement guidance

Follow your vehicle manufacturer’s warranty and service recommendations. Typical replacement intervals for filters are around 5,000–7,000 miles, with a maximum range of 10,000–15,000 miles depending on driving conditions and oil type.