On Wed, 28 Mar 2007 19:40:31 -0700, "Daryl Bryant"
Don't forget that Beetle only had a 5 PINT capacity and was
air cooled with large cylinder clearances by todays
standards allowing tons of combustion by-product
contamination of the oil. It needed changing every 2K or
less. That old Beetle engine also had valve adjustment
recommended every 2K miles making an oil change convenient
at that time. Many of us including myself have owned Beetle
and have fond memories but, they were not in the same league
as modern cars when it come to reliability and durability.
In the late 60's, I did all the oil maintenance testing for
several seagoing vessels in our group. I also threw in
samples from shipmates vehicles from time to time as a favor
and because comparisons were needed for calibration
purposes. At less than 1K miles on average, the Beetles
were invariably over limits allowed for our Diesel main prop
engines which never had the oil changed unless it was found
to be contaminated. My '63 Falcon w/260 V8 with 90k miles
on the clock could make it to around 2k miles. My Mach I
would easily top 4K miles and be in specs as would all of
the other late 60's cars I tested. I went to a 5K change
interval using dino oil and good quality filters more than
25 years ago and still get more than 200K with no problems
on an engine. I think that may still be too often but, it
is easy to keep up with. Once a car or light truck of mine
gets past 200K miles, I consider it free mileage.
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