Oil Flow Question

Hello;

When running 30 weight motor oil, what is the smallest gap in thousands it will pass between to effect good lubrication? Will it lubricate a .0015 gap?

Thanks
 

Ofcourse..has been for Years..!!

What matters is just "How long" it takes the Heavier 30 wt to Pressurize the Bearing with oil.. ( Dry Starts)..

Lighter oil flows much better when Cold...something to consider..
 
You'd be waaaaay better off with a 10W-40 or 10W-30 oil than a straight 30 weight. You're the guy who's complaining of " thumping" of the engine until oil pressure builds up?? ..... 30 weight in anything but above 60 degrees is too heavy.
 

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