Royal Purple oil filters can extend change intervals up to 12,000 miles. Vehicles still under warranty should follow the vehicle manufacturer’s recommended filter change intervals.

Royal Purple's brochure brags about an oil film "3 to 4 times as strong as any comparable lubricant," which means fewer metal‑to‑metal introductions under big load. The same handout states ...

If your vehicle uses a cartridge oil filter rather than a spin-on oil filter, then the Fram Extra Guard is another solid pick. It is rated to last up to 10,000 miles with media that features a ...

Read about the chemistry behind motor oil from Mark McFann of Royal Purple Motor Oil, only at Chevy High Performance Magazine.

I'm assuming a fair number of you like to change your own oil, so our first deal today is a no-brainer. All you have to do is buy a container of highly-rated Royal Purple oil, and you'll get the ...

We also opted for a Royal Purple oil filter, which uses a 100 percent synthetic micro-glass filtration media that filters out particles as small as 25 microns, more than 10 times smaller than a ...

Leading wear-control specialist Filter Focus launched the Royal Purple premier lubricant brand into the South African market at a Speed Week media event in August, held at The Rock Raceway in Benoni, ...

Royal Purple’s BioMax EAL products are suitable for use with marine hydraulic systems and gears, as well as stabilizers, rudders, thrusters, controllable pitch propellers and azipods. “Royal Purple is ...

Pose and click! Click here to try the filter for yourself, and check out all of CBSLA's royal wedding coverage here. Don't forget to tag us! We can't wait to see your best royal selfies!

The Skeptics Designer‑water jokes and eye-rolls aside, the purple jug isn't cheap. Expensive oil is often a waste of money and a 5‑quart jug of Royal Purple can run $5 to $15 more than Mobil 1 ...