Posted: Dec 26 2010 at 9:26pm | IP Logged

Whats you thoughts on additives?

Dura Lube, Slick 50, Prolong, Z-Max?? Anybody use them...give us the scoop..

Posted: Dec 28 2010 at 7:01am | IP Logged

You can use OW-30 in your Frontier.  It is a thrity weight when warmed and a bit thinner than a 5W when cold.  Helps starting when it is very cold and circulates faster than a 5W.  The base stock of a 0W oil is probably a more robust synthetic as no "dino" oil can be made to give a 0W-30.  In my Fronty, starts are excellent at 10 F and the engine is very quiet at all temps.  Mobil 1 markets this as AFE (Advanced Fuel Economy) as it takes a bit less energy to pump around the engine when cold.  I changed from 5W-30 Mobil 1 to the 0W in late September and have about 3000 miles on it with no evidence of any oil consumption.  I'll change back to a 5W-30 in April.

By the way, at 0 F, all 0W and 5W oils are thicker than 30 weight at operating temps.  So you are never using anything that is below what the engine sees at operating conditions.