Actually they test well enough that makers of multimillion dollar machine tools use Mobil Vactra to protect the machine warranty.
I have worked in and traveled to dozens of high tech CNC shops in the US, Singapore, China, Germany and UK. Machining centers in those shop have dozens to hundreds of machines. Some of those machines cost several million dollars. Most of the time Mobil Vactra oil is the lube recommended by the machine tool manufacturer to protect the warranty.
Use anything you want but there are multibillion dollar aircraft plants using equipment most of you can't imagine. They don't use Amsoil or Lucas.
EDG
Dear EDG, The OP was about discovering that someone else's "gun lube" was actually just bike chain oil. I stated that I bought some for a buck a bottle. When I tried it I was somewhat surprised to see that it actually made my guns rack a bit more easily. BUT THE WHOLE POST HAS BEEN MOSTLY TONGUE AND CHEEK. That is why I deliberately made up such ludicrous numbers. ALL IN FUN. Not intended to cause angst.
EDG: just because my Hardinge Chucker has a data plate that says the Recommended lube is Mobil Vactra Oil doesn't mean that is the only thing that works. Mobil Vactra oil is sticky stuff, so is the Amsoil. It is also not that readily available. My local Mobil Dealer wanted $240 for a 5 gallon bucket of the stuff and another $150 to ship it in from LA,(which was ridiculous!!!) and the last time I checked with him was 25 years ago! There are no smaller quantities. A Quart of Amsoil lasts me for many many years.
Mind you I don't use this stuff in my cars or Jeep. Just the machine tools. I do have an Amsoil Oil Filtration System on my Cummins powered Jeep engine, and their filters are as good as it gets. But I run whatever the dealerships put in in my two cars. I think they use Castrol Synthetic.
I used to run Mobilgard 1 SHC which is Synthetic Boat Motor Oil in my Cummins Powered Truck with a 20K change interval but that same distributor did the same thing to it with the $250 for 5 gallons and $150 shipping from LA. It is 60 miles to the Mobil distributor in LA from Oxnard!
I now use Mobil 1 15/50 I buy from Walmart which is $22.88 for 5 quarts. My truck engine takes two of them.
I have been using the Mobil Racing Oil in my machines for 30+ years and they all look pretty much like new. My Chucker was made in 1962! My old mill was made in 1956 and I rebuilt it completely. My new mill was bought at Westec in 1992 and has always had it. The chrome ways aren't even polished yet.
When I took my Chucker Carriage apart to replace some parts I had to literally drill the oil passages out to get the Black Solidified Vactra Oil out of them. It actually looked like the stuff was burnt. This machine came from Statham Industries in Oxnard and was well maintained and had always had Vactra oil in it. Now when you pull on the oil pump, oil actually flows to the carriage and ways.
I never did like that stuff. The only reason why it is recommended by Machine Tool Mfg's is because it is the only oil that says it is specifically for way lubrication. I think it is essentially non detergent 30 wt Motor oil.
YMMV
Randy
"It's not how well you do what you know how to do,,,It's how well you do what you DON'T know how to do!"
www.buchananprecisionmachine.com
For those that are interested Amsoil produces specifically produces for, firearm care, air tool & compressor oils, Hydraulic, gear lube and greases. I have very limited experience with their products so this is not Amsoil specific. Based on many years machine rebuilding and having to deal with the sludge Randy is referring from natural oils I will only use synthetic oil for any application that has a sump or a tank.
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BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
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GC | Gas Check |