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Ask Mobil Archive -
Zinc
DateQuestionAnswer
04/26/2012
ZDDP Levels for Mobil™ Conventional Motor Oils
Hi. I have used Mobil 1™ products only in my cars for a decade. I have recently acquired a 1928 Ford Model A that only requires non-synthetic oil with 500-mile change intervals, but the engine also re...
All of our high-Zinc products are advanced full synthetic oils. As for the Zinc/Phosphorus content in Mobil Super High Mileage, we formulate this oil to meet the maximum Phosphorus content allowable t...
01/12/2010
Will Switching to a Motor Oil with More Phosphorous Adversely Impact a Ford Explorer?
I've been running Mobil 1 10W-30 in my Ford Explorer V6 SOHC for years now. Thought I would switch to Mobil 1 0W-40 for a variety of reasons. Is this oil OK with an OHC engine and will the change from...
Mobil 1 0W-40 is an outstanding product, and with the 40 grade high temperature viscosity it can help control oil consumption in higher mileage vehicles. As far as the higher phosphorus content and it...
10/06/2009
Correct Motor Oil Viscosity for Cars with Hydraulic Lifters
Will your Mobil 1™ 15W-50 give my '67 Corvette and my '62 Skylark with a recent rebuilt engine the proper lubrication for the hydraulic lifters sliding on the cam?
The short answer is yes. Mobil 1™ 15W-50 has a higher level of phosphorus (zinc) preferred for older sliding valve trains in higher performance vehicles.
05/05/2008
What's the Zinc Level Mobil 1 15W-50?
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 le...
The important element here is the phosphorus since it is the active antiwear additive.  That's why we show phosphorus as well as zinc.  The zinc content is in the range of 0.12 - 0.13 weight percent (...
10/15/2007
What to Use for Camshaft Break-in
I am an engine parts wholesaler and my customers are having trouble with camshaft break-in now that the zinc has been removed from the motor oil. I've been selling EOS & comp cams break-in lube but th...
We have a number of products with higher levels of phosphorus. Please refer to the attached table listing the phosphorous levels in our motor oils.
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