Who was it who mentioned Fram oil filters and dropping oil pressure?
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From: Vic Smith on 13 Dec 2009 19:59 On Sun, 13 Dec 2009 18:55:42 -0600, jim <"sjedgingN0Sp"@m(a)mwt,net> wrote: > > Here is a question for you to ponder. How is the "qualified mechanic" >going to determine if the little blue haired lady's car needs more >frequent oil changes? Is the Jiffy Lube guy a "qualified mechanic?" How about the "qualified mechanic" whose business is slow? I think she's gonna need more frequent oil changes. --Vic
From: dr_jeff on 13 Dec 2009 20:13 Vic Smith wrote: > On Sun, 13 Dec 2009 18:55:42 -0600, jim <"sjedgingN0Sp"@m(a)mwt,net> > wrote: > > >> Here is a question for you to ponder. How is the "qualified mechanic" >> going to determine if the little blue haired lady's car needs more >> frequent oil changes? > > Is the Jiffy Lube guy a "qualified mechanic?" > How about the "qualified mechanic" whose business is slow? > I think she's gonna need more frequent oil changes. > > --Vic > > How should a qualified mechanic know how often to change oil, other than following the recommended change intervals by the engineers who designed to the car? Mechanics are trained to fix things and do preventive maintenance. They don't have the training in organic chemistry, metallurgy or engineering to make better recommendations than the car makers.
From: C. E. White on 13 Dec 2009 20:18 "Vic Smith" <thismailautodeleted(a)comcast.net> wrote in message news:ga3bi5to666iv7beavqlo38trchhjt88rl(a)4ax.com... > On Sun, 13 Dec 2009 18:55:42 -0600, jim <"sjedgingN0Sp"@m(a)mwt,net> > wrote: > > >> >> Here is a question for you to ponder. How is the "qualified mechanic" >>going to determine if the little blue haired lady's car needs more >>frequent oil changes? > > Is the Jiffy Lube guy a "qualified mechanic?" > How about the "qualified mechanic" whose business is slow? > I think she's gonna need more frequent oil changes. I like the GM system for determining oil change intervals. It is not perfect, but it does at least attempt to modify oil change intervals to compensate for varations in the vehicle usage. I had a Saturn that used it. I never actually waited until the oil change light came on, but with the light providing a stop point, I felt a lot better about extending the oil change interval. For most of my life I have been a 3000 mile oil change guy. But after seeing how well things went for people I know who change at longer intervals, I decided to go for longer intervals as well. I figure for everything I own, 5000 miles is a good interval. Changing oil too often is not cheap insurance if there is no benefit. Ed
From: jim on 13 Dec 2009 20:24 dr_jeff wrote: > > Vic Smith wrote: > > On Sun, 13 Dec 2009 18:55:42 -0600, jim <"sjedgingN0Sp"@m(a)mwt,net> > > wrote: > > > > > >> Here is a question for you to ponder. How is the "qualified mechanic" > >> going to determine if the little blue haired lady's car needs more > >> frequent oil changes? > > > > Is the Jiffy Lube guy a "qualified mechanic?" > > How about the "qualified mechanic" whose business is slow? > > I think she's gonna need more frequent oil changes. > > > > --Vic > > > > > > How should a qualified mechanic know how often to change oil, other than > following the recommended change intervals by the engineers who designed > to the car? Mechanics are trained to fix things and do preventive > maintenance. They don't have the training in organic chemistry, > metallurgy or engineering to make better recommendations than the car > makers. Most mechanics have working eyeballs. Do you think these engines could use more frequent oil changes? http://delanytowing.com/candiscorner/media/blogs/a/oil-sludge.jpg http://www.schleeter.com/images/oil%20sludge%2098%20BMW.JPG
From: dr_jeff on 13 Dec 2009 20:31
jim wrote: > > dr_jeff wrote: >> Vic Smith wrote: >>> On Sun, 13 Dec 2009 18:55:42 -0600, jim <"sjedgingN0Sp"@m(a)mwt,net> >>> wrote: >>> >>> >>>> Here is a question for you to ponder. How is the "qualified mechanic" >>>> going to determine if the little blue haired lady's car needs more >>>> frequent oil changes? >>> Is the Jiffy Lube guy a "qualified mechanic?" >>> How about the "qualified mechanic" whose business is slow? >>> I think she's gonna need more frequent oil changes. >>> >>> --Vic >>> >>> >> How should a qualified mechanic know how often to change oil, other than >> following the recommended change intervals by the engineers who designed >> to the car? Mechanics are trained to fix things and do preventive >> maintenance. They don't have the training in organic chemistry, >> metallurgy or engineering to make better recommendations than the car >> makers. > > Most mechanics have working eyeballs. Do you think these engines could > use more frequent oil changes? > > http://delanytowing.com/candiscorner/media/blogs/a/oil-sludge.jpg > http://www.schleeter.com/images/oil%20sludge%2098%20BMW.JPG Obviously, they do. However, the vast majority of engines do not build up sludge like that. And, the parts shown are not visible from the outside of the engine. How often should the engine had its oil changed? What you're making is a straw man argument. You have yet to explain how a mechanic is supposed to know how often to change oil. It is obvious when there is a bunch of sludge in the engine that it should have been more often. But you haven't said how to determine how often. |