Stop in for a cup of coffee

Mattax said
really the point of my post about the oil viscosity was that the most important factor is temperature.
On a regular Chysler engine from the 60s, a 5W-20 at normal operating temps is going to be really thin.
It only makes sense to use a 5W-20 with normal bearing clearances if the engine is running really cold.
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O here we go, using data and fact in place of emotionally charged hypothetical statements! Hah! I have woken up on the wrong thread again! Now Matt is trying to force me to think. I vote we just hand it over to Chris so we can watch it go up in smoke! Then I don’t have to think!