Do superior MRV and CCS make a difference in warm weather?

[Javed]

Does a premium high PAO 0W-30 with better MRV and CCS outflow an off the shelf 0W-30 at, say 60° f? Or the weather has to be super cold for better MRV and CCS to make a significant difference?

Thank you

 

[JavierH19]

On the subject of increased flow and more importantly pumpability at 60f technically yes but in reality no not really as the time difference between the two in the warm temp would be in the milliseconds and inconsequential but it would still perform better elsewhere. It would have to be well below 0f to start to see a difference.

 

[4WD]

Pump-able oil flows at the rate of the oil pump …

 

[Javed]

Pump-able oil flows at the rate of the oil pump …

I see. So cars that use really thick oils must have a strong oil pump.

 

[facility1]

now if more of the oil blenders / formulators just publish the legitimate MRV and CCU results per astm test results. many do not ,especially MRV, and also pourpoints are only a smaller usefulness in the engine at whatever temp in relation to starting and how rapid the engine gets fully lubricated even when up to operating temperature.

 

[Javed]

now if more of the oil blenders / formulators just publish the legitimate MRV and CCU results per astm test results. many do not ,especially MRV, and also pourpoints are only a smaller usefulness in the engine at whatever temp in relation to starting and how rapid the engine gets fully lubricated even when up to operating temperature.

I checked AFE 0W-30's Product Data and it says nothing, only pour point.

 

[Javed]

There is a guy called Ford Boss Me on Youtube. In his test Truck and SUV 5W-30 outflowed all other 5W-30 oils including Amsoil. But who believes those tests, it is Project Farm kind of stuff.

 

[JavierH19]

I see. So cars that use really thick oils must have a strong oil pump.

Not necessarily. Most engines can use any oil because there's a relief valve so it will relieve excess pressure

 

[Javed]

Not necessarily. Most engines can use any oil because there's a relief valve so it will relieve excess pressure

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0W-20 all the way to 20W-50. That's so crazy.

 

[Javed]

Not necessarily. Most engines can use any oil because there's a relief valve so it will relieve excess pressure

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Wish my owners manual said something like that.