Motor oils usually contain detergent. And detergent makes it easier for the
oil to absorb water. This isn't a problem in cars, where it gets good and
hot each time it's run. But in a cold application like a compressor, it can
absorb and hold the water.

--

Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.com


"IdaSpode" wrote in message
...
On Thu, 02 Dec 2004 21:46:43 GMT, "Cooper" wrote:

snip

Have an Emglo that is about 13 yrs. old. Book stated straight 30W. During
the colder months I had the same problem. Switched to 10W-30 year round,
no
problem.
snip

My Porter Cable manual specifically states not to use a multi-vis oil.
What's up with that, any idea?

DJ