I myself would pull the pan, remove as much as possible and use 1 qt of ATF in lieu of 1 QT oil for the first few oil changes. I have done that for years. I have also used the 1 qt of diesel in the engine just prior to an oil change. With engine warm, add diesel, run engine for about 30 seconds, then shut off and let sit for a minute. Change oil often.

Then if the engine starts to rattle, re-build it.

The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me