<VV> mobil 1 user

[Dave Morris]

It doesn't tell you anything.  It's called "Anecdotal evidence" in the 
world of science, and it is a footnote.  It's nice to hear, but it's not 
scientifically valid.  The only real evidence is a wear vs time curve for 
synthetic and dino.  Everything else is emotional hyperbole.

Dave Morris


At 03:46 PM 7/5/2005, you wrote:
>I use Volkswagen's own brand semi-synthetic 'Quantum Synta' in my 84 Golf 
>GTi, and I and the previous owner have been using this since 1989, when he 
>bought it with 50000 miles on the clock. Quantum Synta costs $10 a gallon, 
>and we have both changed the oil every 5000 miles (at $10 a gallon this is 
>no hardship - Mobil 1 here costs $45 a gallon!).
>
>It has now done 230000 miles, and it has no bore or bearing (or any other) 
>wear, and the only engine work it has ever had was valve stem oil seals at 
>210000 miles (that's how I know there's no bore wear - it's a head-off job).
>
>Does this tell me that VW's semi-synthetic is great oil, or that more 
>expensive synthetic oils are a waste of money, or that fully synthetic 
>isn't worth bothering with over semi-syn, or that it was a good idea to 
>buy a car whose interior and exterior fitments, and its wheel bearing and 
>driveshafts, etc (3 out of 4 bearings and all the CVJs are still original, 
>despite our stringent inspection regs) were of the same quality as its 
>mechanical ones (so that everything else can last as long as the engine - 
>which is is doing) - or just that VWs are incredibly well-engineered?
>
>I kind of figured that a company with a reputation for durability like VW 
>has would not put oil in its engines from new and at services unless it 
>was exceptionally high quality - and I seem to have been right. So far, 
>anyway - I am shooting for at least the 1/4 million mile mark, and I would 
>like to get to half a million!
>
>Cheers
>
>Alan
>
>
>
>----- Original Message ----- From: "Dan Roraff" <corvair at bevcomm.net>
>To: <virtualvairs at corvair.org>
>Sent: Tuesday, July 05, 2005 7:31 PM
>Subject: <VV> mobil 1 user
>
>
>On more letter on synthetic oil.
>My first new car was an 85 Ford Tempo, used Mobil One from first oil 
>change. Nine years latter was time to retire it.  Engine was still good 
>but everything else was failing.
>Changed oil twice a year, (10,000 miles).  Only needed to add oil once in 
>between oil changes from when it was new to when it had 180,000 miles.  It 
>had lots of one mile trips in Minnesota  winters.  My Neon was similar but 
>over 215,000 miles and the car was in much better shape.  Now would cheap 
>Wal Mart oil have given me the same results, no way to know with out a 
>scientific double blind test.  So which oil to I use on my new car?  I 
>just don't know. My conclusions are people change oil way to often and
>there is now way to tell quality of motor oil until it's too late.
>
>Dan
>65 Monza Convertible
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