1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
Joined
·
17,320 Posts
Welcome to Allpar. As long as your engine is in good mechanical condition, you should be fine with 5W-30 year round. The slightly lighter viscosity may also afford you slightly better fuel economy. Lighter grades are great for colder temperatures.
The heavier grade 10W-30 0r 10W-40 may be good for reducing oil consumption or engine noise, if that is an issue.
The heavier grade 10W-30 0r 10W-40 may be good for reducing oil consumption or engine noise, if that is an issue.