New member first post. I've been working in the industrial field since 1980 and was greasing cars and trucks since age 13 using the old huge single cylinder lift.
I did do a search.

Topic should read disadvantages of multi weight oil. What qualities does the oil forfeit to become multi-weight?

I know about cold starting and flow capability of multi-weight. I always allow my engines to warm up, before raw-hiding them.

Any links welcome.
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