WTD, I feel certain you have made the right choice in VI of the oil epecially with the SS oil,Was a synthetic in it before?
PS I like those neck of the woods you live at,close to Eureka right?
A Bud of mine stopped by yesterday,he has been using the 5/30 All Climate oil in his truck since it was new,,I showed him this board,then showed some copies of various data sheets for cP crank reasons and viscosity at 100 C told him the why's of the 5/30 and EPA and CARB,well long story short,he left me with a check to order 7 cases of Sheaffers 10/30 from Bob.
He took my papers to show his friends and relatives the benefits of a good flowing 10/30 full syn or syn blend over a 5/30 dino