Pentosin 202 vs 11s PSF

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What's the difference between these two? My 2005 Saab 9-5 seems to take the 11s, but '06 and on Saabs take the 202. Is the 202 a newer, better fluid?
 
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202 and 11s are interchangeable and can be mixed with no problems. The 202 is supposed to be better.
 
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Originally Posted By: ET16
What's the difference between these two? My 2005 Saab 9-5 seems to take the 11s, but '06 and on Saabs take the 202. Is the 202 a newer, better fluid?
The most observable difference is in the low temperature performance where CHF202 is about 1400cP at-40C wheras CHF11S is about 1100cP at the same temperature.
 
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Whitewolf is right that 11S was a bit better at extreme cold temps compared to the new 202. The 202 isn't a "better" fluid, just the most recent version. I've converted my A6 from 11S to Amsoil PSF and have had no problems. Even last winter when we had weeks of sub-zero temps, the power steering pump never said a word. Plus the Amsoil stuff was much cheaper.
 
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