Originally Posted by ZeeOSix
Maybe it has a magnet or two put in the material. That would give an addef bonus of more ferrous particle capturing.
Right again!!!!!
Here is one implementation:
The Lava Oil Filter Shieldâ„¢ is made from a Heatshield Products proprietary volcanic rock material that can withstand temperatures of up to 1,200 degrees of continuous heat, and 2,000 degrees of intermittent ambient heat. Installation is simple: slip it over the installed oil filter. It is held in place by industrial-strength magnets, and a pull ring on the bottom of the shield allows for easy removal for oil changes and other engine service. Currently, the Lava Oil Filter Shieldâ„¢ is available for most popular American V-8 filters, with more applications coming soon.