Can someone tell me thick to thinnest

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Out of Mobil 1 0w30, Mobil 1 Truck and SUV 5w30, Mobil 1 5w20, Pennzoil Platinum 5w30, and Pennzoil Platinum 5w20 which is the thickest and which is the thinnest?
 
Well winter is just around the corner and the lowest temp it will get in Anchorage is -26F and summers here can get up to 86F.

BTW I am driving an 02 Acura MDX.
 
You have to specify a temperature to compare viscosities. The rank order might be different depending on what temperature you're looking at.

For example, if you compare them all when they're stone cold, Mobil 1 0w30 might be thinnest. If you compare them all when they're hot, one of the 5w-20 oils might be thinnest.
 
A 0w-xx would be better for winter than a 5w-xx because it will have better cold flow properties.

Between a 5w-20 and a 0w-30....does you owner's manual specify 20 or 30 for the second number? I would pick an oil with the recommended second number and a 0 for the first number.
 
I dont think Castrol 0w30 is really a 0w if you extrapolate the curve from 100cst > 40cst, its 40cst is much higher than many 5w conventionals.
 
Originally Posted By: dsmith41
A 0w-xx would be better for winter than a 5w-xx because it will have better cold flow properties.

Depends on how cold you're talking. A 0w30 will only be thinner than a 5w-20 in the absolute coldest temperatures. Above that, it'll be about the same or thicker.


Originally Posted By: dsmith41
Between a 5w-20 and a 0w-30....does you owner's manual specify 20 or 30 for the second number? I would pick an oil with the recommended second number and a 0 for the first number.

Agreed.
 
Originally Posted By: ARCOgraphite
I dont think Castrol 0w30 is really a 0w if you extrapolate the curve from 100cst > 40cst, its 40cst is much higher than many 5w conventionals.

(Assuming you meant degrees C instead of cst)

The winter rating is measured well below 40 degrees C.
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