Youve done your homework on all this oil stuff. You do agree that Redline is one of the best out there because it doesnt sheer back that much, right? BUT I read this:

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">10W30 - Reduces turbo lag and provides more power and economy in a properly functioning engine, while providing thicker bearing oil films than a petroleum 10W40.</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Does this mean that its AS thick as a 10W40 oil? Then why is it a 10W30 oil. That would be why it doesnt seem to sheer back so far if it starts out at a viscosity equal to a 40 weight. Am I right in my thinking?

 

What they are basically saying is that the synthetic has a higher film strength than the dino oil, so it will offer the same level of protection with a thinner viscosity. Because Redline has such a strong base oil, it does not get squeezed out as easily under stress like a conventional oil can. Redline also uses the barrier protection of moly, so in the rare cases it does get squeezed out, the moly prevents metal to metal contact. The moly also provides protection against metal to metal contact on a cold start too. A lot of oils are now starting to add moly, even the new Mobil 1 SuperSyn has a little bit of it now!

Redline's 10w30 is still definitely a 30wt, as it's 11.0cst at 100c. It would have to be between 12.5 to 16.3cst at 100c to be a 40wt.

 

Thanks Patman. I ordered some of the 10W30 and was just curious <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />