Penetrating Oils....best and home made...

oldyellr · Nov 24, 2012

Any type of ATF. It's just that ATF is the thinnest oil most people have handy.

Slab · Nov 24, 2012

A bit off topic but an old time method was to use heat and wax. Heat a rusted nut and the melted wax would get drawn into the threads and break them loose.

LD1 · Nov 24, 2012

Slab said:
A bit off topic but an old time method was to use heat and wax. Heat a rusted nut and the melted wax would get drawn into the threads and break them loose.

Never heard of that of even tried it on nuts/bolts. BUT, that is a common method on removing pipe plugs from engine blocks. Like the three oil galley plugs above the cam bearings at the rear of the block. And it does work surprisingly well on those pipe fittings. Because the nature of pipe fittings forming a seal, other penetrants dont work very well.

Orange 08 · Nov 24, 2012

Most of the gunsmith supply places sell Kroil. Try Brownells. It can also be ordered direct from Kanolabs. It is expensive but the oil, not the aerosol, can be used in a oil squirt bottle and just a drop or two will work and the can will last a long time, a gallon will last a lifetime at home.

sixdogs · Nov 24, 2012

Orange 08 said:
Most of the gunsmith supply places sell Kroil. Try Brownells. It can also be ordered direct from Kanolabs. It is expensive but the oil, not the aerosol, can be used in a oil squirt bottle and just a drop or two will work and the can will last a long time, a gallon will last a lifetime at home.

He's not kidding about the one drop. I think that is all I have ever used on something stuck. If you buy a gallon, make a note in your will.

DEWFPO · Nov 25, 2012

oldyellr said:
Any type of ATF. It's just that ATF is the thinnest oil most people have handy.

Makes sense. About 30-40 years ago I hears I heard that Ford Type F ATF was basically a 10 weight oil with antifoaming additives and red dye. The new stuff (Dex Vi and others) appears even lighter now (but same red dye).

DEWFPO

BuilderML · Nov 29, 2012

I have a can of what you guys call Kroil. Its an orange can and the name on the can is actually AERO-KROIL. I got the can when i was a machinist back in the day. Have never seen it since on any store shelf. Yes this stuff is the king of all penetrating oils. Spray something at night come back in the morning and its like magic. I did have to use heat with it one time on the shock bolt that was frozen to the bushing on the shock. I didn't want to wait over night so i used heat,spray, and an 8 lb sledge but it worked.:cool2:

EddieWalker · Nov 29, 2012

I have been using PB penetrating oil with pretty good success and forgot about Kroil until reading this thread. I'm going to keep my eye open for it and pick some up when I see it. Can you get it at Home Depot or Lowes?

I don't think I'm going to try the mixing it myself approach. Looks like there might be to many issues to deal with if I get it wrong. To me, it's not worth the effort to mess with it.

I love WD40 for cleaning. It gets nasty stuff off my hands better then anything else, and it's also great for getting glue off of glass. Really a great cleaner, but it leaves an oily film, so it has to be cleaned up with windex after using it to remove glues.

Eddie