I have had some difficulty in buying R-12 mineral oil. Interdynamics has stopped making it. I bought the last qt. at Carquest (their brand, clear color) that had been sitting for at least 4 years; it should still be ok as it was sealed. The only thing available these days is Ester and Pag. I have had a qt. of Interdynamics mineral oil sitting around for years (red color) but decided not to use it because of age. Does anyone know if mineral oils are color coded?

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Dan
1981 240D
1987 300D Turbo
1973 220
Das Beste Oder Nichts

I finally got some at NAPA but I previously asked at at least 6 places (including that same NAPA) and most of them looked at me like I was from Mars. I know I'm ugly, but these places sell auto parts. You would think it was easier, no?

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'82 300SD - 361K mi - "Blue"

"Good judgement comes from experience. Experience comes from bad judgement."

listen, look, .........and duck.

I got my Castrol Premium refrigeration oil from Carlisle Auto Air in San Antonio.. I am sure they do mail order.. do a search with my name .. have posted their address and web address before....

"Does anyone know if mineral oils are color coded?"
Sorry, I don't, and I don't want to unseal my quart to find out....

The privately owned shops are where you are more likely to find it. I checked AutoZone and Discount Auto then went to Central Auto Parts in Orlando and they pulled out a quart without even batting an eye.

Check your local phone book and call around.

Danny

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1984 300SD Turbo Diesel 150,000 miles

OBK member #23

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www.ackits.com has the Castrol mineral oil, nice price too. I purchased my two quarts from there.

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1993 Mercedes Benz 300D 2.5 205K (ex wife's)
1984 Mercedes Benz 300SD 320K (SOLD)
2004 Mercedes Benz C240 75K
1995 GMC Sierra 2WD 5.7L 188K
1983 Mercedes Benz 300SD 239K (SOLD)
1987 BMW 325i 220K (SOLD FOR SALVAGE)

609 Certification

I went to the local drug store and bought a bottle of mineral oil. It's all the same stuff. Then used a syringe to inject it into the valve.

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Adam Lumsden
(83) 300D
Vice-President of the MBCA International Stars Section

http://64.233.187.104/search?q=cache:3HITdWEIGKEJ:www.centrogalileo.it/nuovaPA/Articoli%2520tecnici/INGLESE%2520CONVEGNO/Castrol%2520UK%252027June03.doc+castrol++refrigerant+oil+R12+mineral+oil&hl=en

Do NOT use drug store mineral oil!!!

It contains wax and impurities that will foul up your AC system.

You need a wax free cold flow mineral oil.

Danny

__________________
1984 300SD Turbo Diesel 150,000 miles

OBK member #23

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(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination

Adam will be turning 16 on the 25 of July....
He has time to learn these sorts of things....

Yup, and I'm all set to get my license. whunter was the one who told me about using the store oil.

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Adam Lumsden
(83) 300D
Vice-President of the MBCA International Stars Section

The problem is that every system is different... no two compressors are in exactly the same condition... and the cleanlyness of the tiny openings in the Txvalve.. etc... one might work forever and the next one have problems... all I know is that the MB FSM on AC specifies ' cold flowing oil' ... seems if the only criteria was that it be mineral oil it would have said that instead....