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A stupid question : can I use R134 oil in my R12 system??

HamadUP on Sat June 23, 2007 3:53 PM User is offline

Year: 1971
Make: Chevrolet
Model: Corvette
Engine Size: 454
Refrigerant Type: R12
Country of Origin: Qatar

I know I know! Its a stupid question, but I am going to ask anyway!

I am rebuilding my A/C system right now and its a R12. It happened to have a new can of R134 oil in my garage (it says : HFC134a ND-OIL 8), can I just use it for my A6 R12 A/C compressor? It should be backward compatible, right? Can I use it at least to soak rubber seals for fitting purposes?

Thanks in advance,,,


TRB on Sat June 23, 2007 6:37 PM User is offlineView users profile

I would not use a SEC PAG with R12.


When considering your next auto A/C purchase, please consider the site that supports you:

iceman2555 on Sat June 23, 2007 7:01 PM User is offlineView users profile

Agreement goes with TRB. SEC PAGS will be destroyed by the chemical construction of R12. PAG should not be used as a lubricant for orings or absorbs moisture.

The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.
Thomas Jefferson

NickD on Sun June 24, 2007 7:23 AM User is offline

With that car, may want to use R-12 oil with R-12, where in the hell is Qatar? Must have played hooky that day in geography class. Can you still get R-12?

bohica2xo on Sun June 24, 2007 4:15 PM User is offline


Your question has already been answered, but I have to ask how many 1971 Corvettes there are in Doha?


Qatar is a (comparatively) small country in the Persian Gulf. It is a peninsula that extends from the coast of Saudi Arabia. Quite an interesting place really. Very foreward thinking politically, with very friendly and tolerant people. I spent a bit of time there (pre-9/11).

"Among the many misdeeds of the British rule in India, history will look upon the act of depriving a whole nation of arms, as the blackest."
~ Mahatma Gandhi, Gandhi, An Autobiography, M. K. Gandhi, page 446.

HamadUP on Thu August 30, 2007 6:01 AM User is offline

bohica2xo : Sorry for the very late response! I just noticed your reply. Thanks for the nice words about us!. From '96 to now soooo many things have been changed (to the better of course) and if you have any oppourtinty to come here again, please do.

There are only one '71 Corvette here in Qatar, which is mine, however, I saw 3 '72s and one '69 .. all but one of the '72s are big blocks. but I am the only one that uses it as daily driver.

Regarding the A/C in my car, I am now using a R134 and its working flawlessly in Qatar's summer heat.


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