Zinc Level of the Two 15W-50 Mobil 1 Products

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-	What's the Zinc Level of the Two 15W-50 Mobil 1 Products?
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-	Applicability of Synthetic Motor Oil in a 2003 Chevrolet Impala
-	Judging Viscosity Ranges of Multi-Grade Oils
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-	Long Drain Intervals in a BMW
-	Mobil 1 vs Mobil Delvac 1 for a Gasoline Engine
-	Switching From Conventional Motor Oil to Mobil 1
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-	Protecting an Infrequently Used Engine
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Question:

What's the Zinc Level of the Two 15W-50 Mobil 1 Products?

Hello, I read your answer about ZDDP and phosphorus levels. You even list the phosphorus level in your table, but you show no listing for the level of zinc. Other oil companies also list their zinc level. I would like to know the zinc content in your 15W-50 oil. I would like the level for the gold cap and the silver cap separately. I drive a car that is over 20 years old and the answer is important to me. Thank you, Jerry

-- Jerry Baer, Hollywood, FL

Answer:

The important element here is the phosphorus since it is the active antiwear additive. That's why we show phosphorus instead of zinc. The zinc content of both products is in the range of 0.12 - 0.13 weight percent (1200 - 1300 ppm).


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