Originally Posted By: dnewton3
Originally Posted By: Solarent
... Assuming ..... that no sacrifice in engine durability would happen ...
You've set a condition (no change in wear protection) that is already evident today in our lubes. 10w-30 protects every bit as well as 15w-40, yet personal preference for "thicker
How have you arrived at the above statement? Mfg's switching to a lighter lube as a factory fill are certainly not proof IMO. And the oil mfg's teardown studies don't show much other than an that larger diesel engines can make it to 500-750k miles, the time when typical when they come off lease.
I have not seen any end of life/failure testing when it comes to the thinner vs thicker debate so if I missed on please post a link to it. Not trying to be adversarial but please help me understand.
Originally Posted By: Solarent
... Assuming ..... that no sacrifice in engine durability would happen ...
You've set a condition (no change in wear protection) that is already evident today in our lubes. 10w-30 protects every bit as well as 15w-40, yet personal preference for "thicker
How have you arrived at the above statement? Mfg's switching to a lighter lube as a factory fill are certainly not proof IMO. And the oil mfg's teardown studies don't show much other than an that larger diesel engines can make it to 500-750k miles, the time when typical when they come off lease.
I have not seen any end of life/failure testing when it comes to the thinner vs thicker debate so if I missed on please post a link to it. Not trying to be adversarial but please help me understand.