What is the application of Motorcraft FL820S?

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Professional Motorcraft FL820S Cross Reference Oil Filter FL820 FL-820-S L24651 PL24651

Q: Which is better Motorcraft or Fleetguard oil filter?

O Applicable scenarios
If the vehicle is a Ford brand (such as Focus, Edge, etc.), MOTORCRAFT is a more suitable choice as it is developed according to Ford's technical specifications.
If diesel engines, heavy-duty trucks, construction machinery, or commercial vehicles such as Cummins are used, Fleetguard has more advantages, especially its LF, FS series are widely used in harsh working conditions.
O Filtering accuracy
Fleetguard offers different precision models (such as LF670 for coarse filtration and LF777 for fine filtration), which can be selected according to needs.
MOTORCRAFT focuses on comprehensive protection (cleanliness+wear resistance), but does not clearly distinguish between coarse/fine filter grades.

Q: How often should I change FL 820S?

Normal driving conditions: Replace every 10000 to 15000 kilometers or 12 months, whichever comes first.
Adverse driving conditions (such as frequent short trips, dusty environments, heavy loads, etc.): It is recommended to replace every 5000 to 8000 kilometers.
Reference vehicle manual: It is usually recommended to change the oil and filter of Ford F-150 (Raptor) and other compatible models every 12 months or 10000 kilometers.

Q: What is better, 5 microns or 40 microns?

In oil filters, the filtration accuracies of 5 microns and 40 microns have their own applicable scenarios, and it cannot be simply said which is better. The key depends on the vehicle type and engine operating conditions.

Based on authoritative public information, the following recommendations are recommended:
• Ordinary naturally aspirated engines (such as most family cars):
Recommended filtration accuracy: 20-40 microns
Reason: The working environment of the engine is relatively mild, and larger particles and impurities can be effectively intercepted, while ensuring smooth oil flow and avoiding premature clogging of the filter element.

• Turbocharged engines (such as high-performance cars, turbo models):
Recommended filtration accuracy: 5-20 microns
Reason: Turbocharged engines have high engine speeds, high temperatures, and stricter requirements for oil cleanliness. Small impurities can easily cause wear on bearings or fuel injectors, requiring finer filtering.

Special Note:

5 microns ≠ definitely better: If used in a regular engine, a 5 micron filter element may increase oil flow resistance due to its small aperture, affecting lubrication efficiency and even causing frequent opening of bypass valves, which in turn reduces protection effectiveness.
40 microns ≠ insufficient filtration: For ordinary engines, 40 microns can effectively intercept most harmful particles, with lower cost and longer lifespan