Originally Posted By: Kuato
Originally Posted By: ChrisD46
According to March 2013 PQIA studies , Pennzoil Ultra has a NOACK of 6.6 which is almost half of other leading synthetic oil brands ! Interesting to note that as DI engines become more popular it appears Pennzoil Ultra's future may be in jeopardy ...Your thoughts ?
Half? As in other synthetics are at 13+?
Amsoil SS 5w30 is NOACK 6.9, 10w30 is under 6 so your source is incorrect.
I calculated it, both PU and Amsoil SS 5w30's NOACK is on average about 38.7% lower than other motor oils tested in the
PQIA's synthetic oil round up.
I guess we can consider 11.3% away from half (50%) "almost half" as the OP mentioned.
Also PU 10w30 NOACK is 4.8% which is also under 6% as with Amsoil SS 10w30.
Both Amsoil SS and PU SN are exceptional oil's. PU was easily accessible until recently where almost every store chain decided to start clearing them out.
While both exceptional, Amsoil SS and PU products are not easily accessible for the everyday consumer at common brick and mortar retail stores.