A Valvoline tech just told me:
Quote:
The American Petroleum Institute (API) will not consider any oil with seal conditioners an Energy Conserving Oil.
This surprised me. Any opinions on this--true, false, or why? It doesn't make sense to me. Why would simply having seal conditioners be the basis for a prohibition on even testing for the EC certification?
Quote:
The American Petroleum Institute (API) will not consider any oil with seal conditioners an Energy Conserving Oil.
This surprised me. Any opinions on this--true, false, or why? It doesn't make sense to me. Why would simply having seal conditioners be the basis for a prohibition on even testing for the EC certification?