Low oil pressure

Mopar Tim said

O weight oil is used to get MPG up. It does flow faster in cold weather, BUT these engines are engineered to use this weight oil. VERY close tolerance in bearings. And the plastic intake is very useful, lighter for one, and it makes more power then aluminum, it stays cool. The rest of the plastic is there to reduce weight to get mandated MPG. I think OP could rebuild that engine but more then likely, it will last a long time as is. And one more thing, you do realize most new cars dont have a oil pressure gauge? I think people would be scared to see how low oil pressure is in these engines.

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Tim I was going to stay out of this from my last post but this is incorrect. The first number in a multi viscosity oil is the weight the oil is when it is cold. Not cold weather, but when the oil is below normal operating temperature. After the oil reaches normal operating temperature, then it changes to the second number, so 0w20 weight is 0 weight when cold and when it reaches operating temperature it is 20 weight.

If what you said about mileage were true, it would need to be 0 weight all the time, not just when cold.

The reason we are seeing all these really low cold operating weights is so that the engine can get the light weight oil pumped through it very quickly to help avoid oil starvation on startup. That's all.

I've had enough of the bickering. It's getting the OP's thread off base. So yall can keep on arguin. I am done.