Originally Posted By: Shannow
tiredtrucker....
What's the HTHS of the 30 in your rig ?
what's the HTHS on an ILSAC 30 ???
What's the bearing dimensions and applied pressure (force over area) ?
Have asked these questions each time you pop up with the same meme...and you NEVER answer...
I didn't say that I have one of those 13L engines, what I have, or what I use.
I do know that all of the major HD engine makers from 13L thru 15L factory fill with 30w oils, recommend them, and I personally know many of the owners that have 500,000 or more miles on their engines using 30w oil in them with no evidence of a problem. Most of those oils have a minimum HTHS of 3.5.
But your arguments seem to be closely related to some that own these HD engines that feel that only a 40w should be used because of the work they do, yet the evidence doesn't support a 40w is needed. And I have seen a lot of UOA's on 10w30w oils that show shearing is far less than 0w40 and 5w40 oils over time and under stress.
tiredtrucker....
What's the HTHS of the 30 in your rig ?
what's the HTHS on an ILSAC 30 ???
What's the bearing dimensions and applied pressure (force over area) ?
Have asked these questions each time you pop up with the same meme...and you NEVER answer...
I didn't say that I have one of those 13L engines, what I have, or what I use.
I do know that all of the major HD engine makers from 13L thru 15L factory fill with 30w oils, recommend them, and I personally know many of the owners that have 500,000 or more miles on their engines using 30w oil in them with no evidence of a problem. Most of those oils have a minimum HTHS of 3.5.
But your arguments seem to be closely related to some that own these HD engines that feel that only a 40w should be used because of the work they do, yet the evidence doesn't support a 40w is needed. And I have seen a lot of UOA's on 10w30w oils that show shearing is far less than 0w40 and 5w40 oils over time and under stress.