You know, that's the exact same logic I used when I first switched
> from 5W-30 to 10W-30. Now because of information I learned about > cold
> start wear, I'm leaning back to 5W-30. (Better fuel economy, too, > in
> this age of $4/gallon gas.) It's all supposed to be the same
> viscosity when warm anyway, right? So cold starts should dictate
> which oil to use...???
>
> Michael
If you are in Sacramento, the difference is trivial. Worry about earthquakes, wildfires, and Arnold instead.