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  1. #1
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    What is this oil?

    I found an Australian web site that sells hydrocarbon refrigerants and it also has an oil listed that i haven't been able to identify.
    It is called SRO500
    Any ideas what kind it is?
    https://hychill.com.au/products/SRO500

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  2. #2
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    Compare viscosity of page 4 to page 6 of this msds
    http://www.nucalgon.com/assets/SDS/E...8D_SDS_ENG.PDF
    Honeywell you can buy better but you cant pay more

    I told my wife when i die to sell my fishing stuff for what its worth not what i told her i paid for it

  3. #3
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    So that is a pve oil. With iso viscosity of about 68. Are you saying wou think that hychill sro 500 is pve oil?

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  4. #4
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    Sro has 69* higher flashpoint and a higher viscosity index. So it is not the same exact oil but i wonder if it could be pve?


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  5. #5
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    Yes I was just pointing out the similarities I haven’t used either one. I haven’t heard of any other oil new to the market other than pve,but with the new refrigerants coming out daily I’m sure it’s just a matter.
    Honeywell you can buy better but you cant pay more

    I told my wife when i die to sell my fishing stuff for what its worth not what i told her i paid for it

  6. #6
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    I am thinking it must be pve. They shure claim it is the wonder oil for everything.

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  7. #7
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    One problem.
    Pve is 4 times more hygroscopic then Poe oil and sro 500 claims to be virtually non hygroscopic.
    It must be made by pressing snakes to extract the oil.

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  8. #8
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    If they are 100% hydrocarbon refrigerants - why wouldn't they play nice over standard mineral oils?

    What else is in these refrigerants that are not hydrocarbons?

    PHM
    -------



    Quote Originally Posted by R600a View Post
    I found an Australian web site that sells hydrocarbon refrigerants and it also has an oil listed that i haven't been able to identify.
    It is called SRO500
    Any ideas what kind it is?
    https://hychill.com.au/products/SRO500

    Sent from my rotary telephone using Tapatalk
    PHM
    --------
    The conventional view serves to protect us from the painful job of thinking.

  9. #9
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    They would work fine with mineral oil. I am just trying to figure out what that oil is because it claims to be synthetic not hygroscopic and compatible with r134a and all other avalible refrigerants.

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  10. #10
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    All of those refrigerants seem to be blends of r600a and r290

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  11. #11
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    Well i was so curious that i emailed the manufacturer and amazingly they replied.
    SRO 500 is polyalphaolefin (PAO)


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  12. #12
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    PAO is a group 3 synthetic AKA synthetic mineral oil. I wonder how miscible it actually is with hfc refrigerants.

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  13. #13
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    Wow; I'm not positive but I think that is what Mobil 1 engine oil is. <g>

    PHM
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    Quote Originally Posted by R600a View Post
    Well i was so curious that i emailed the manufacturer and amazingly they replied.
    SRO 500 is polyalphaolefin (PAO)


    Sent from my rotary telephone using Tapatalk
    PHM
    --------
    The conventional view serves to protect us from the painful job of thinking.

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