From: clifto on 28 Mar 2007 01:57
> clifto wrote:
>> samstone(a)aol.com wrote:
>> > The change industry are the ones suggesting the 3000 mile
>> > interval. Through commercials they've gained believers.
>> I was taught 3,000 mile intervals long before there were companies that
>> specialized in oil changes.
>> I have a friend who changes his oil every 2,000 miles. I would rather
>> buy one of his used cars than any new car, for quality reasons (though
>> the price wouldn't hurt either).
> Using synthetic oil would be far more sensible actually.
The past few years, he has. Mobil 1 every 2,000 miles. Must be nice to
"This, then, is the essence of Gore's complaint:
there are too many humans and they are too well off."
-- Robert Tracinski
From: Eeyore on 28 Mar 2007 03:07
John Henderson wrote:
> SMS wrote:
> > The 3000 mile interval was back in the days before
> > multi-weight detergent motor oil. These older oils had too
> > high of a viscosity when cold, and could not suspend
> > particulates.
> We were using multi-grade detergent/dispersant oils back in the
> 60's. That's what VW specified for their engines, with a 3000
> mile change interval. I worked for the Australian VW importers
> at the time.
I always recall VW specifying plain 30SAE for the air cooled engines.
From: John Henderson on 28 Mar 2007 04:13
> I always recall VW specifying plain 30SAE for the air cooled
Before my time, I'm afraid. Or they may have had different
recommendations for different markets.
From: Tim.. on 28 Mar 2007 05:02
"C. E. White" <cewhite3(a)removemindspring.com> wrote in message
> Most major automakers agree: The adage that you should change your car's
> oil every 3,000 miles is outdated, and even 5,000 miles may be too often,
> The Associated Press reported.
> Ford Motor Co. became the latest manufacturer to extend its oil life
> guidelines, making public that it is raising the recommended oil change
> interval from 5,000 miles to 7,500 miles on its newly redesigned 2007
> models and all subsequent redesigned or new models, AP said.
Here in the UK, several manurfactuers- Renualt, Citroen, Vauxhall (GM) have
been on 20,000 mile (or 2 years) oil changes for some while!!!
Thats using semi synthetic- not full synth!!!
From: John Henderson on 28 Mar 2007 05:06
> Before my time, I'm afraid. Or they may have had different
> recommendations for different markets.
It looks like there may have been differences. I've just found
my 1968 copy of the VW "Without Guesswork", which says:
"This booklet contains measurements, clearances, and other
important details for the complete range of VW products from
the introduction of the 30 bhp engine in December 1953. It
should be carried by every VW specialist and not just put into
a drawer somewhere."
I had it in a drawer. Interestingly, it covers things like
octane requirements, but not oil specs. We certainly
recommended multi-grade detergent oil very strongly back then.