Originally Posted By: ZZBottom
Still haven't found any info at all on what test caused the severe scuffing in the one case. Did they put sand in the oil? Seems the smooth side is something any good oil would give you anyway.
As usual for Castrol, they have snatched defeat from the jaws of victory with half arsed advertising...start-up was the same.
Positive that Oz has more "detail" on what the artists impression is supposed to mean, so rushed out to my stash to find an Oz bottle (it's empty, more on that later).
FRONT
BACK
In otherwords, they beat the Sequence IVA wear test (start-up wear, cold enigne/oil at full flow lube and rev levels) by a factor of 4, and this is an artist's representation of the relative roughness.
Every licenced oil has beat the sequence IVA by some margin, so how this compares to another oil is moot (although Valvoline's adds post Katrina were pretty specific)....
I'm also tendering those photos, from my stash as eveidence, so that next time I'm accused of recommending 20W50 in a 3.8V-6, I've got evidence...that was last OCI on my L67 Caprice. Currently got Magnatec 5W40 A3/B4, and my mileage computer is reporting a 1.7 drop in mileage over the economy ILSAC 5W30.