I run Mobil 15w50. No leak problems from the oil heat exchanger. I don't think I would run 10w40 oil except in the bitter cold of winter. Chris. Wysłane z iPhone'a Dnia May 25, 2011 o godz. 22:40 Max Wellhouse <dimwittedmoose@CFU.NET> napisał(a): > FWIW, I had been running Mobil 1 in the engine since 5k after its > rebirth, but I've had several instances where the Oring seal at the > oil cooler was leaking. It was doing it again last winter and into > the spring, until I changed oil and returned to Castol High mileage > 10/40 oil. The leak, if not totally stopped, is much, much less for sure. > > Since the O ring seal is black and presumably not Viton, and since > full synthetics love/demand Viton seals, could this be a coincidence, > or something more?? > > Does such a thing as a Viton Oil cooler seal exist?? An argument > could be made that the oil filter seal is not Viton and normally > doesn't leak, but I am at a loss to explain this in another logical fashion. > > TIA > > DM&FS |
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