986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post

Brucelee · 01-06-2005, 06:33 PM

As I understand it, as oil ages, its ability to handle the higher vis needs degrades. Ergo, a 0-40 weight oil will fairly quickly devolve towards 0. Apparently, this happens MUCH more slowly with a 15 or 20W-50 oil.

Hence, my comments about the redcap for the warmer climes.

01-06-2005, 06:33 PM	#5
Brucelee Registered User Join Date: Jun 2004 Location: Des Moines, IA Posts: 8,083	As I understand it, as oil ages, its ability to handle the higher vis needs degrades. Ergo, a 0-40 weight oil will fairly quickly devolve towards 0. Apparently, this happens MUCH more slowly with a 15 or 20W-50 oil. Hence, my comments about the redcap for the warmer climes. __________________ Rich Belloff