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Brucelee · 07-02-2005, 08:36 AM

In San Jose, I would certainly stick with the 15-50.

If I lived in Chicago or Boston, the 0-40 would certainly be the way to go in winter.

The heavier oil will create more friction and heat but that is not an issue in warmer climes.

Using 15-50 in a Chicago winter would be ill advised for sure.

07-02-2005, 08:36 AM	#6
Brucelee Registered User Join Date: Jun 2004 Location: Des Moines, IA Posts: 8,083	In San Jose, I would certainly stick with the 15-50. If I lived in Chicago or Boston, the 0-40 would certainly be the way to go in winter. The heavier oil will create more friction and heat but that is not an issue in warmer climes. Using 15-50 in a Chicago winter would be ill advised for sure.