Originally Posted By: pjc360
I see Amsoil makes a 0w-30 oil in thier signature series brand but the Mobil 1 would be a lot cheaper through wal-mart. And I am still on the fence about running a 30 or 40 weight oil. The 40 weight will bring better oil pressure, does that mean a longer lasting engine?
The 5.9 called for 30 weight from factory. A 0w-30 would not be a bad way to go in the winter if your seeing -30 degrees in the morning, I have run Amsoil 0w-30 in my 5.9 Durango for years, great oil!
I see Amsoil makes a 0w-30 oil in thier signature series brand but the Mobil 1 would be a lot cheaper through wal-mart. And I am still on the fence about running a 30 or 40 weight oil. The 40 weight will bring better oil pressure, does that mean a longer lasting engine?
The 5.9 called for 30 weight from factory. A 0w-30 would not be a bad way to go in the winter if your seeing -30 degrees in the morning, I have run Amsoil 0w-30 in my 5.9 Durango for years, great oil!