Al Joined Jun 8, 2002 Messages 20,224 Location Elizabethtown, Pa Jun 14, 2023 #1 Comparing multi-viscosity 20 wt. oils to 30 wt oils. Just have not found any.
D drtyler Joined Jan 4, 2006 Messages 2,509 Location GA Jun 14, 2023 #2 What exactly are you wanting to compare?