In my '91 Westy wasserboxer I used Mobil 1 15W/50 all year. In my current
TIICO I also use Mobil 1 15W/50. I'm in Salt Lake City with winter temps
down into the teens and summer up into the hi 90's, low 100's.

Bob

On Sun, 22 Dec 2002, 80 Westy Pokey wrote:

 > Is 20w5 Oil OK in Winter? I drive my van almost exclusively
 > in the summer and have always used Castrol GTX 20w50 Oil.
 > Now it is December, temperature is just below freezing, but
 > the roads in Toronto are free of snow and salt. I was
 > thinking of using the van to help in my move. I have to
 > change the oil nyway so I was wondering what weight I should
 > use in the winter months.

I'd follow the recommendations in the manual.  They won't lead you far
wrong.  It looks like 20W-50 is okay to a bit below freezing.

              _ _
   __ _ _   _| | |  | David M. Brodbeck (N8SRE)              Ypsilanti, MI
  / _` | | | | | |  +-----------------------------------------------------
| (_| | |_| | | | @ cyberspace.org
  \__, |\__,_|_|_| "To the optimist, the glass is half full.  To the
  |___/             pessimist, the glass is half empty.  To the engineer,
                    the glass is twice as big as it needs to be."

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