Can I use 20W50 oil year round?
I've looked through the oil discussions and didn't see the answer. If I missed it, please excuses the repetitive question.
I just bough my E320 1994 w/108,000 miles a few months ago. I'm using 20W50 weight Castrol and want to keep using it throughout the winter if it won't do any harm in the average 20 degree lows of our South Carolina winters.
I'd appreciate any opinions from this informative group.
Thanks in advance.