Depends on your summer driving habits and where you live.

I run 10w50 year round in Michigan, mostly highway driving, engine runs cool.
https://www.amazon.com/TOTAL-QUARTZ-RACING-Engine-Oil/dp/B00NVCEWF8

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Thomas Casal
Sent: Tuesday, April 14, 2020 4:12 PM
To: vanagon@GERRY.VANAGON.COM
Subject: winter weight oil

Hello Wise One's,
When should I change this winter weight oil 5w50? I'm guessing now but
didn't really put any  miles on it. Feels like a waste. cheers tom