At 03:38 PM 11/25/00, TLrydr@... wrote:
>I I got it from a test from MCN a few years back, it was on Relative
>viscosity retention comparisons among five different brands of auto and
>motorcycle oils,
Yes, I have read that test too, but how did you go from reading that
test to considering that oil should be changed at 800 or 1500 mile
intervals? That test did not evaluate the changes to oil properties
after the 1500 mile test (only Mobil 1 was run longer than that).
Also, if you check the latest oil test, some of the results are not as
clear, because they were testing for more items than just viscosity
retention. Not to mention that the viscosity retention of Mobil 1
seems to have been reduced significantly from the test results 6
years ago. It came in at the lower end of the chart. OTOH, Honda
HP4 seems to have improved significantly over the last 6 years.
But, at the same time, they showed poorly in other areas. This is
an oil that sells for $6/qt! You could probably do better with almost
anything that is on sale at your local Wal-Mart.
I think you have to take these test results as a good start for
comparison, but they are not exactly scientific and definitive. After
all, you don't really account for variations in riding styles of the Wing
club members that participated in the test. Even if you assume the
bikes are as identical as possible, there was no mention of what
range of mileage those bikes had, and how that was considered for
the test. I always give MCN the benefit of the doubt, because they
are probably the only really independent mag. But even their test
has it's limitations.
> The Synthethetic Mobil 1 beat every thing by such a wide margine
>I have sued it every since
Mike, if you sued Mobil over an oil you think is great, I'd hate to know
what happens to those you don't like...
YOilMV,
Gustavo