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Date: Thu, 18 Feb 1999 19:33:02 GMT
From: ThisIsnopsamagestopping.net
Subject: Re: Is 20/50 any good for a 87 900s


Perhaps more information than that is necessary. Does your car use or leak oil? Sometimes a heavier oil can help mitigate small problems of that sort. Some folks claim that an xW-50 oil is too heavy to be used in any turbine enywhere ever. While that statement itself is obviously too sweeping on its face to be strictly correct, it may or may not be true of some of Saab's turbos. New (American) 9-3 turbos call for 20W-50 above 60 degrees (F). Other people say a heavier oil is necessary to protect turbo bearings since they experience very high temperatures and stresses. I think one is best served by sticking to the recommendation in the owner's manual. I think it a reasonable assumption that Saab knows more about the requirements of each of their models than other entities do. I will say that, if your book does not warn against it, and if you have a minor oil consumption/leaking problem, you can probably give it a try for one drain and see whether it helps. If it doesn't, I'd switch back to the manual's recommendation. HTH. --Eoin On Thu, 18 Feb 1999 12:58:51 -0500, way2xtreme-NOSPAM-nopsamcom (w e i) wrote: >on the same topic, i'd like to ask you guys opinion on using heavy oil for >an older car (87 900s) > >as i was changing oil last nov, the station guys recommand using heavier >oil instead my case of mobil-1 5/30. he said it is better for older car. > >is it true? > >pros and cons? > > > > >thx in adv

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