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Old 07-18-2026, 07:51 AM
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Quote:
Originally Posted by vertigto View Post
Didn't Valvoline reformulate the VR1 10w-30 recently and lower the zinc content? That was part of the reason I've moved to Driven HR5, although it is a bit expensive these days.

I thought I remember the zinc/phosphorus levels being higher than 1100/1000 that the specs now say.

https://sharena21.springcm.com/Publi...d-48df3793b338
Yes they lowered zinc in the 10-30 vr1 but that happened several years ago. Unless theyve lowered it again? Wouldn't surprise me. The 20-50 has had more zinc content than the 10-30 for quite a while now. The straight weights are also still high zinc formulas.
Our Napa still stocks shelves full of VR1 Valvoline in all viscosities.

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