Quote:
Originally Posted by mramay
My 560SEL is running R134 and is acceptable in the Las Vegas oven period (summer) only because I removed the engine fan and put in a dual electric fan setup on the radiator. That made a significant difference.
One of my SECs and a friends 560SL are running R12 and I keep them cool by using R290 (propane!) as the topping off refrigerant. When those two cars get a little low on refrigerant and don't cool acceptably well, I add a little R290. R290, as y'all know, is used in Japan and the EU as an automotive refrigerant, and is MORE efficient than R12, plus is completely compatible with R12 seals and lubricants. It costs me around $2.00/Lb at the local hardware store.
Be Cool,
Mike R.
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I've been using hydrocarbon based refrigerants for years, Dura-cool, enviro-safe etc. and have been very pleased. I never heard of using R290 before. Do you buy it the same way I do for my home barbeque, by the 20 lb. cylinder? If so what kind of hookup did you use to go from the 20 lb. cylinder to your gauge/charging set? I'd love to know.
One of the vehicles I changed over was my 94 Chrysler which came from the factory with r134a. Performance was marginal until I charged it with Dura-cool, now if blows at 36 degrees!
04-23-2009, 04:37 PM
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