air gun oil

crosman pellgun oil is not a petroleum distillate, and they caution you against using any such oil on the seals of their airguns. I would never use 30 weight oil in my airgun....
 
You can use whatever you want but I am telling you what it is.Do a search for what is pellgun oil.It is a well know fact and has been for quite some time.
 
from Crossman air gun forum

Pellgun Oil Substitute
May 14 2008 at 2:33 PM douglas phillips (Login jdphill)
Crosman Forum Member
from IP address 70.241.70.158


Response to Crosman Pellgunoil
We have all heard the same stories of ND motor oil etc. If you put one drop of ND motor oil between your thumb and index finger and SLOWLY pull them apart, you will see how far your fingers separate before the oil drop breaks apart. 20 wt. oil will separate sooner (closer together) than 50 wt.
Now try that with Pell gun oil and note the relative viscosity (distance)before the lubricant column breaks apart. Keep in mind that the distances involved are going to be small and requires a Steady hand. But after awhile you will notice differences.
Now get your hands on some type of 'STP' or 'Motor Honey' oil additive (for high mileage motors) and try the drop viscosity test (now you know why they call it motor "honey").
Now get some ATF Dexron (red) and test.
OK! one is way too thick and the other is too thin in relation to our benchmark Pell Gun Oil 'viscometer' (your finger tips).
Now mix approx. 50% STP and ATF (automatic trans fluid) and see how close you can match the Pell gun oil. Keeping in mind that Both products you are mixing are Non Detergent and seal friendly, red in color and have that same distinct fell of 'stickiness' that Pell gun oil has.
Nothing else I have ever felt has that same 'stickiness' (Long chain Molecular weight) that 'STP' and 'Pell gun oil' BOTH have.




History IS the Preview of the Future, don't Forget any!
doug,P.
 
That's silly. To protect your seals, use ONLY silicone lubricant for the piston and breech seals (on a springer, or any seals on any pellet gun). You can lube your spring and follower VERY lightly with moly grease.
 
Redlight35 said:
from Crossman air gun forum

Pellgun Oil Substitute
May 14 2008 at 2:33 PM douglas phillips (Login jdphill)
Crosman Forum Member
from IP address 70.241.70.158


Response to Crosman Pellgunoil
We have all heard the same stories of ND motor oil etc. If you put one drop of ND motor oil between your thumb and index finger and SLOWLY pull them apart, you will see how far your fingers separate before the oil drop breaks apart. 20 wt. oil will separate sooner (closer together) than 50 wt.
Now try that with Pell gun oil and note the relative viscosity (distance)before the lubricant column breaks apart. Keep in mind that the distances involved are going to be small and requires a Steady hand. But after awhile you will notice differences.
Now get your hands on some type of 'STP' or 'Motor Honey' oil additive (for high mileage motors) and try the drop viscosity test (now you know why they call it motor "honey").
Now get some ATF Dexron (red) and test.
OK! one is way too thick and the other is too thin in relation to our benchmark Pell Gun Oil 'viscometer' (your finger tips).
Now mix approx. 50% STP and ATF (automatic trans fluid) and see how close you can match the Pell gun oil. Keeping in mind that Both products you are mixing are Non Detergent and seal friendly, red in color and have that same distinct fell of 'stickiness' that Pell gun oil has.
Nothing else I have ever felt has that same 'stickiness' (Long chain Molecular weight) that 'STP' and 'Pell gun oil' BOTH have.




History IS the Preview of the Future, don't Forget any!
doug,P.
Click to expand...

ATF non detergent ???????????? Now I have heard it all.
 
Redlight35 said:
Now that I think about it, you're right... it's probably the highest detergent oil out there!
Click to expand...

Didng ding ding...we have a winner !!!!! Yes , ATF has the highest amount of detergents, to keep everything nice and clean. Actually when I clean engines from sludge residue, I would run ATF instead of engine oil and run the engine(not drive the car) for 10-15 min than drain. ATF will remove so much gunk just bcs of its high detergent contents.
 
The issue I believe, is not viscosity nor is it the amount of detergents in the oil.

I have been cautioned not to use petroleum based oil on airguns, if the oil can get into the air cylinder.

Reason is, I have been told, is that petroleum based oil will act as a hydrocarbon fuel and will burn (combust) in the airgun's chamber/cylinder much like diesel fuel will burn in a diesel engine combustion chamber.

This will make your air rifle a firearm:) I don't know if it will survive the experience, however, considering the much higher pressure of combustion.
 
easyrider604 said:
The issue I believe, is not viscosity nor is it the amount of detergents in the oil.

I have been cautioned not to use petroleum based oil on airguns, if the oil can get into the air cylinder.

Reason is, I have been told, is that petroleum based oil will act as a hydrocarbon fuel and will burn (combust) in the airgun's chamber/cylinder much like diesel fuel will burn in a diesel engine combustion chamber.

This will make your air rifle a firearm:) I don't know if it will survive the experience, however, considering the much higher pressure of combustion.
Click to expand...

Yes. The term is "dieseling" and it describes the scenario very well. Petroleum products will combust in the conditions present in an airgun therefore, always avoid it. Is pellgun oil really that expensive that we are looking for substitutes? I have had tubes last for years and years......
 
I've had it happen , loud bang and some smoke. Gun was still OK afterwards, but I wouldn't try it too many times. They don't recommend petroleum based products as it will harden the seals and they will end up cracking and not sealing properly. They are OK to use on springs and trigger parts though.
 
easyrider604 said:
air guns = air tools....well, in a manner of speaking, yes.

but air guns operate at a much, much, much higher pressure than air tools' 100 psi or so.
Click to expand...

Not really....

And here's why I say that. Your normal back yard mechanic air compressor runs about 100psi with a max of about 150psi. Most industrial units found in large scale tire shops, heavy duty Mechanical shops etc run in the area of 180 to 250psi. They all use the same air tool oil as you do in your back yard shop. To propel a 10g paintball at 400 fps (as per mythbusters) you need about 200psi, well within the range that the oil works in.
 
Redlight35 said:
Not really....

And here's why I say that. Your normal back yard mechanic air compressor runs about 100psi with a max of about 150psi. Most industrial units found in large scale tire shops, heavy duty Mechanical shops etc run in the area of 180 to 250psi. They all use the same air tool oil as you do in your back yard shop. To propel a 10g paintball at 400 fps (as per mythbusters) you need about 200psi, well within the range that the oil works in.
Click to expand...

Perhaps paintball guns need only 200 psi, but air rifles, specially high powered air rifles, would operate at around 1,000-2,000 psi or more.
 
RE: oiling of C02 airguns, and only C02 airguns.

Air tools are completely different than a C02 airgun. For one, they run typically at 100-120 psi, they do not have any O-rings for critical 'air tight' sealing. Air tool oil is mainly used to lubricate bearings, moving metal surfaces, to prevent rust forming from water in the air, etc.

A number of years ago I purchased several airguns and had several re-O-ringed by an elderly gentlemen who is well known in the airgun community in Southern Ontario. His name is Noel Sedman. For a number of years Noel did most of the warranty/service repairs for Crosman.
Even back then (approx. 15 years ago) Pellgun oil was not available.
Noel told me that he uses ATF fluid to lightly lubricate the areas where O-rings sat/moved when he rebuilds a C02 gun. He even suggested placing a small droplet of AFT on the head of each C02 cartridge before placing it in the gun to lubricate the internal O-rings.

I have been doing this for years without any issues.

Do not use motor oil, as I can break down certain O-ring materials. Remember not all builders use the same elastomers/O-rings. Since C02 gun internals are completly sealed using O-rings, you want to treat/lube them all correctly.

High powered air springers are a completely different story. A Light coat of Moly lube only.

Although my PCP gun has O-rings, I am reluctant to lube them with anything, as I am dealing with 3600 psi or air, instead of 600 psi of C02.

That's my 2 cents!
 
blackacres said:
RE: oiling of C02 airguns, and only C02 airguns.

Air tools are completely different than a C02 airgun. For one, they run typically at 100-120 psi, they do not have any O-rings for critical 'air tight' sealing. Air tool oil is mainly used to lubricate bearings, moving metal surfaces, to prevent rust forming from water in the air, etc.
Click to expand...

Petroleum based oil will not diesel in CO2 rifles, therefore safe in CO2 rifles, because CO2 is a fire retardant/extinguisher and will not support combustion at all.
 
easyrider604 said:
Petroleum based oil will not diesel in CO2 rifles, therefore safe in CO2 rifles, because CO2 is a fire retardant/extinguisher and will not support combustion at all.
Click to expand...

I mentioned nothing about dieseling issues in a C02 gun!

Dieseling will occur in a spring gun, as the piston compresses the air, it will hit a pressure point and the air/oil will ignite, just like in a diesel motor. When this happens in a magnum air gun, you can basically kiss it goodbye.

The main concern with C02 guns and oiling, is that some petroleum oils can break down/attack the seals in a C02 gun, causing leaks. Try using a petroleum based oil, let's say WD40 and see how long your C02 gun will work! The O-ring break down will happen rapidly as WD40 is a light viscosity oil, other heavier weight petroleum oils just break down the O-ring elastomer more slowly.

Your automatic transmission is full of O-rings used as seals. How many O-rings are there in a car motor, or an air tool? I think I feel much more comfortable using ATF in my vintage C02 guns!
 
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