Royal Purple05000 Maxfilm High Performance Multipurpose Synthetic Penetrating Spray Lubricant - 11 oz.

2ND CONTAINER. THE FIRST WAS EXCELLENT.

Good stuff. Worked well on my garage door rollers even though dry lube is recommended

This is the best dry lube ever, bro! I use it on everything that needs lubing (if you know what I mean). Just in case you don’t know, let me clear it up: doors, rv slides, other things. This is neat.

The headline shows what I find most impressive. I've always had issues with my sliding screen door sticking and spray grease/WD 40 works for what seems like minutes. The other day I went to use the screen door months after applying Royal Purple and accidentally threw the screen door hard into the jam because I anticipated heavy resistance and instead it flew open without any problem. Similarly I was having issues with the key in my front door getting stuck. I honestly thought the key was bent but decided to give a quick spray in the keyhole. Since then my key meets zero resistance -- again months after application.A couple times I've used this on areas I couldn't find the source of a squeak - a desk chair that rocks and my trucks parking brake pedal (just the pedal - not the brake!). I sprayed RP on these and disappointingly the squeak was still there. After a period of time had passed I suddenly realized the squeaks were gone! Even though the issue wasn't resolved immediately the lubricant made its way through the components and ultimately resolved the issue! Though expensive, it's totally worth it for the DIY home owner.

Some of the best lubricant spray I’ve ever used and I have been through a bunch

Excellent penetrating juice that provides super lube characteristics. Many other products will "free up" moving parts, but this provides a superior level of lubrication as well. I've used it on several projects, including 2 La-Z-Boy chair mechanisms that were very stiff and had some rust; the chairs had been unused for 20 years. They work like brand-new now! I've used just about every penetrating/lubricating product on the market in the last 40 years. I'm a retired automated printing press mechanic/technician, and I wish I had this stuff available years ago - would've saved countless hours on the job trying to free-up sticky parts that were difficult to reach. Although the cost is high, a little goes a long way. The only improvement would be to use a screw-on nozzle instead of the push-on "straw" which tends to fall off if you bump it. However, the quality of this Royal Purple far exceeds this inconvenience. (From what I understand, WD-40 was developed as a Water Displacement product for ignition & electrical systems - hence the name "WD". It provides minimal lasting lubrication, and needs to be re-applied frequently.)

Had never used RP products before. Had decided to try some RP high performance grease for my HF spring compressor, and saw this advertized. After reading the reviews I decided to give it a try too. Must say I have never really been happy with WD-40 as a penetrant/ long term solution for anything.I have an old Stanley spokeshave tool I acquired at a garage sale I wanted to fettle up for use. It has a metal body which was was pretty rusty and with a couple of very tight rusty screw type blade adjusters. I sprayed it up with the RP maxfilm and left it sit a few minutes - very quick dissolution of the rust, and freed up the threads very nicely. Very impressive.I replaced the beat up old Stanley spokeshave blade with a wicked sharp Hock A-2 cryosteel blade and the tool is good to go to shape the neck for the ukulele I am making.Wont be buying any more WD-40 - this is way better.

This stuff on a chemical engineering level is the Impressive. The amount of punishment, and heat this stuff can take as metal borehole drilling lubricant is beyond anything WD40 could do.It is almost ridiculous to put something so strong into a commercial spray can for home use. This is what you would use on red-hot .50 cal machine guns to lube the slides, or while drilling through the center of the earth through feet of Iron.It simply IS the best mechanical lube in its class, by miles.Better than WD40, Liquid Wrench, and all the others. I don't even think royal purple has the best synthetic oil (it's really really good, not the best) but THIS is the BEST spray lube by FAR.