Royal Purple15000 Maxfilm High Performance Multipurpose Synthetic Penetrating Spray Lubricant - 11 oz. (Case of 12)

I've used a lot of spray lubricants over the years. I use spray lubricants for anything from lubricating hinges on home/auto doors to helping me break bolts free. I had a really squeaky door in my house that I've tried everything to fix. I put motor oil on it, I put WD40 on it, I put PB Blaster, moly grease. I'd come to my wits end with it, but I used some of this Maxfilm and the door does not squeak. It worked so well in fact, the door now wouldn't stay open on its own due to there being zero friction. It lasts forever also. I am definitely a loyal user of this spray lubricant for anything that I need a spray lube for. It really does shine in breaking old rusted bolts as well.

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.

Well like everyone else I have used WD40 for years but was never satisfied with how long the lubricant lasted. So after changing my car's oil to Royal Purple I decided to give the spray a chance. The first place I used it was on the pistons of my storm doors that were pretty rusty and squeaking a bunch. I applied the spray as soon as the spray arrived and the doors are still working better than ever before and the lubricant shows no sign of being displaced or wearing out. After such good experience on storm doors I started hunting out the squeaks around the house and have used it on hinges and the gas filler door on my car as well as all 5 doors and through rain storms etc. the Royal Purple just keeps working and working well. Now I am pretty much sold on Royal Purple products and would highly recommend them to anybody.

Works great.

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.

I started using this product maybe 10 years ago and swear by it. I had old brass door hinges on my house from the 1920’s and a little of this makes them quiet, fly open with ease and lasts a long time. Pontoon boat door hinges…. Same result, no binding or noise at all. Great product!

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