May 2005 Issue

Letters: 05/05

Testing Oils
Let me start by thanking you for the unbiased testing and cautious enthusiasm you gave to our product, CamGuard. Your testing, while very much more severe than ours, showed directionally the same results.

I believe that corrosion is by far the leading cause of premature wear and in extreme cases, catastrophic component failure, such as cam or lifter spalling. I reached this conclusion while working for Exxon and participating in the research for their new piston aviation oil in the early 1990s.

Relating laboratory bench or engine tests to the real world is a difficult task. The goal is to increase severity while accessing the correct test regime. These res...

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