Royal Purple Oil Filter FAQs:

Are Royal Purple Filters compatible with all conventional and synthetic oils?

Yes. All Royal Purple Premium Oil Filters are compatible with both types of motor oils.

Do Royal Purple Filters meet all original equipment requirements? What about my vehicle warranty?

Royal Purple Filters meet or exceed original equipment manufacturers’ requirements. All new car warranties remain in effect when using Royal Purple Filters.

How does the quality of Royal Purple Filters compare with other manufacturers’?

Royal Purple Premium Filters use 100% synthetic micro-glass media for superior particle removal with 99% filtration efficiency at 25 microns.

What is the efficiency rating and at what micron size?

99% efficiency at 25 or greater micron based on ISO 4548-12 multi-pass test methods.

What are the main features and benefits of Royal Purple Superior Protection Extended Life Oil Filters?

Features and Benefits:

• 100% synthetic micro-glass media for superior particle removal with 99% filtration efficiency.
• A high performance silicone anti-drain back valve that prevents dry starts, even in extreme conditions.
• An extra-heavy duty rubber base gasket that ensures a leak-free seal.
• Ultra-strength filter housing endures higher burst strength than conventional filters.

What function does the wire-backed media provide?

100% wire-backed synthetic media provides superior filtration while keeping low flow restrictions.

Are all Royal Purple Premium Oil Filters constructed with a silicone anti-drain back valve? Why silicone?

Yes, the silicone anti-drain back valve prevents dry starts by eliminating oil drain-back during shutdown. Silicone outperforms and outlasts standard rubber in both extreme cold and hot oil temperatures.

What are the beta ratios?

Average beta rating based on ISO 4548-12 multi-pass test methods:

• B25 = 100 (which means at 25 or greater micron; media is 99% efficient.)
• B20 = 75 (which means at 20 or greater micron; media is 98.7% efficient. Also considered absolute rating.)
• B10 = 5 (which means at 10 micron or greater; media is 80% efficient.)

Where can I get more technical data and information?

Call the Filter Hotline at 1-800-882-0890. Hours of operation: M-F (7a-7p CST); Sat (7a-5p CST).

What is the recommended change interval?

Vehicles under warranty should follow the vehicle manufacturer's recommended change intervals. Vehicles no longer under warranty and in good condition may extend filter changes to 12,000 miles if they are driven under normal operating conditions and are using Royal Purple motor oil or other major brand of synthetic motor oil. Vehicles driven in severe conditions should follow the change intervals recommended in their owner's manual; severe conditions are defined as racing or commercial applications, frequent towing or hauling, extremely dusty or dirty conditions, or excessive idling.