Call me backwards or whatever.... but I believe in changing the oil at 3000 miles.

Many lab tests do not reflect the adverse variables extant in real life.

For instance, the effects of condensation, sometimes mixed with fuel or other things.... I just think it is better to get fresh oil into the system rather than trust the filter to get out stuff which I don't even know how to measure....

I don't think the filter can get out acids which may have formed due to ( whatever )...

PEH, ok,,,, are you saying they are supposed to walk in the winter... or would you like to suggest which make of automobile you would recommend throwing to the Salt Devils.....?

PEH, What other things do you think are Crazy ?... (Just in case we need to Tweak your nose at some time in the future)....