"Blind brand loyalty - this board is anti-Valvoline, thus the Pennzoil choice."
Now, now
MNgopher, there is nothing
blind about my (our) loyalty(ies).
You ended up saying so yourself in that last post of yours. The loyalties here are usually well-earned.
In fact, I wasn't a fan of Pennzoil until about a year and a half, maybe two years ago. I'm actually a convert. And until Valvoline repeatedly lied to me, I was recommending their stuff.
Yes, Pennzoil 5W30 will shear out of grade after 3,000-4,000 miles (depending, depending), but so will most 5W30s, even synthetic blends.
I don't think much of Group III oils masquerading as synthetics (especially with the improved PAOs out there these days) so I just don't think the $2.25US per quart is really worth it.
What about the pour points of the Pennzoil blends? Are they comparable? Similar base oil groups as the Valvoline blend, but at least you have extra barrier wear if/when it does shear. It's not just a moly thing. According to
Ed Hackett and others, Valvoline's additive package (ZDDP, mostly) has been generally on the skimpy side for a decade or more.
JonS, I take it you wouldn't consider the Schaeffer S7000 blend for $3 per quart? Royal Purple 5W30 is a blend ... but a pricey one. What about Mobil's blend's stats? I assume those have real PAOs in them ... but don't they also use a lot of Group I mineral?
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Bror Jace