Group III oils bridging the performance Gap to Group IV?

[PalmerWMD]

http://www.machinerylubricatio...d=533

Fred..

[Q45tech]

"0W-20 and 0W-30 engine oils, with their extremely low temperature performance requirements, will continue to be dominated by PAO-base fluids for the next few years"

Regardless of what the article says the best Group 3 are still 10-20% lower performance than the PAO .........look at their own graphs!

In the 3,750-4,000, even 5,000 over 90 days intervals the oil is still fine. It's the dirt particles in it that need changing [removing].