car engine oil in compressor used as vacuum pump for laser

[star882]

Can the oil in a small refrigeration compressor be changed to regular car engine oil if the compressor will be used as a vacuum pump for a CO2 laser? A friend is asking me that because he wants to build a CO2 laser cutter for precision cutting plastic and etching metal. (He works at a computer store and he wants to add a "professional" case modding service.)

[Abe]

Marc

Pse confirm that we can use car engine oil in refrigeration

[Snowman123]

Turns into brown sludge in the compressor, fridge oil in cars makes them smoke well bit like james bond

[Abe]

I was told in college its all to do with the oil wax

Car engine oil will wreck the fridge compressoe , as Snowman says will become thick sludge , porridge......

I saw someone do it once, put it into a Prestcold Semi.........

Stopped the motor in its tracks.......

Compressor was wrecked