Unleaded fuels, moisture, and engine "blow by"

[BOBISTHEOILGUY]

I ran across this and thought this was interesting and maybe someone could elaborate more on this.

quote:

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Bi-Metal Aluminum Alloys - Plated and Unplated

Unleaded fuels, moisture, and engine "blow by" introduce many contaminants into the crankcase. Aluminum bearing materials provide outstanding resistance to the corrosive effects of these substances, and are the product of choice for most current original equipment vehicle manufacturers. The modern bi-metal aluminum bearing contains silicon. As a result of using silicon, the alloy resists seizure and dramatically reduces or eliminates bearing wear. This contributes to today’s extended vehicle life. Aluminum is often the best material for a daily driven vehicle. Adding an overplate to an aluminum bearing will further enhance embedability and conformability. Continued efforts to remove lead from our environment guarantee that aluminum will become the preferred bearing material for most applications.

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Now, question is, would this silcon show up in oil analysis reports as silcon, and thinking it is either dirt ingestion or detergents now it would seem to be a possible bearing material?

 

[Terry]

Yes it is Bob. Known as AL leachate. Kind of like Magnesium sumps in small airplane engines. Will give high MG readings.

You can ID the specific silicon but it is way to expensive and not really needed unless we do a forensics test.

 

[robert]

Terry -

Would appreciate if you would scroll down to the "Does anyone have info on M1 Supersyn" thread. Vader posted some stats for M1 and I asked you for your opinion on the stats. Thanks!