Fact or Myth: Synthetic Oil Causes Leaks
https://www.youtube.com/watch?v=v04QEj84Rv4
Specific esters, called seal swell agents (SSAs) blended into the oil help remove chances of shrinking seals. SSAs are seal conditioners that clean the seal, and the PAOs lubricate the cleaned seal.
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/
Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine)
5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE