They don't list it on their spec sheets. Specifically looking at the synthetic 5w20 and 5w30.
And can anyone explain the rather large flash point difference between 5w20 at 308 degrees vs. 5w30 at 420 degrees?
http://www.lucasoil.com/images/medialibrary/synthetic_5w30.pdf
http://www.lucasoil.com/images/medialibrary/synthetic_5w20.pdf
And can anyone explain the rather large flash point difference between 5w20 at 308 degrees vs. 5w30 at 420 degrees?
http://www.lucasoil.com/images/medialibrary/synthetic_5w30.pdf
http://www.lucasoil.com/images/medialibrary/synthetic_5w20.pdf