November 2011

Long-Term Test of NanoLube: Itty-Bitty Diamonds Slick Guns

Tiny synthetic diamonds in oil are spherical, and once they are embedded into the base material of whatever youíre trying to lubricate, such as guns, they greatly reduce friction.

Over the past few months weíve been testing a product that one of our readers suggested to us. The product is called NanoLube, and itís a registered trademark of the NanoLube, Inc., company, with website at The product is a combination of incredibly small, 0.1 to 4 nanometer, rounded diamonds in suspension in a light 5W oil. The tiny synthetic diamonds are spherical, not jagged, and once they are embedded into the base material of whatever youíre trying to lubricate, they provide a slick surface with greatly reduced friction. So says DiamondLube Treatment Systemís inventor, Chris Arnold.

The evidence given by the reader and by the manufacturer fired our interest. The testimonials in favor of this product are many and varied. One stunning example was a video of two bearings side by side, one of which had normal oil and the other, NanoLube. The two bearings were spun by a blast of air, and then allowed to coast to a stop. The NanoLubed bearing spun far longer than the other. There are many testimonials of the use of this product on the company website, including its use in the bearings of over-the-road tractor-trailer drivers, who have seen significant improvements in longevity of their trucks as well as better mileage. Some of the companyís claims and testimonials were in this productís use on firearms. These included drastic reduction of trigger pulls, better function of semiauto handguns, and slicking of the bore that made cleaning the barrel easier.

To assess these claims for what we considered to be a rather costly product, we obtained two samples from the maker. One was called NanoLube NDN70-ATM+P (7 milliliters, list price $37.50, + $3.50 domestic shipping, or $5 international). The other was a smaller bottle labeled Quicken Weapons Lubricant MIL 30-CLP. (We could not clearly determine its price from the company website, but our best guess is itís a three-milliliter sample, which goes for $22.50.) We tried these oils in a vast array of comparative before-and-after tests on items ranging from firearms to tractor engines. Please be informed that our conclusions are empirical, not scientific. This, however, is in keeping with previous tests of metal-preserving oils that we put on bare steel and left outside to see how well they worked. We got some definite ideas from those tests, and the same is true in the case of NanoLube and Quicken.

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