Does Moly "plate up" on aluminum cylinder walls?

[jsharp]

It's not just that small power equipment engines are smaller. It's the lower stress levels that come from them having low specific output. Their life expectancies aren't all that high either if the EPA emissions life can be used as a measure...

 

[Tremo]

Argh, Chevy Vega. My ex GF had one, it consumed a LOT of oil. I walked through a service bay once and saw one in there with the head off the block, and looked down to see one piston cocked sideways in the bore.

Aluminum bores on a car motor? No thanks.

 

[GMorg]

The mechanisim of protective film formation from Mo-based and Zn-based additives appears to be similar. You may find the following link useful:

http://theoildrop.server101.com/cgi/ultimatebb.cgi?ubb=get_topic;f=4;t=000560