Hot viscosity difference between Magnatec and QSUD 5W30 and 10W30.

Joined
Dec 30, 2006
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How big a difference is this in reality?

QSUD 5W30-11.60
10W30-10.76
Magnatec 5W30-10.46
10W30-11.6

Weird the QSUD's 5W30 is thicker than their 10W30,while Magnatec's 5W30 is thinner than their 10W30.
 
What would be the viscosity between the parts? The numbers indicate they are in the 30 range.
 
What you also need is the HTHS values.

The higher the HTHS for the lowest KV100 points to an oil that has a low polymer VII load, and so less shear and it should therefore hold its viscosity better as the oil is used.

I know it’s hard to get HTHS values, but I like to compare the ratio HTHS (cP) / KV100 (cSt)
 
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