I have rebuilt engines of this vintage. There is no need to run a non-detergent motor oil. The lack of a filter will simply require a decrease in the change interval.
If it were my engine, I would run a 10W30. The Rotella 10W30 is a great choice.
Originally Posted By: fraso
The OEM bypass filters for 235s were add-on items...
You could either retrofit your car with a used bypass kit...
I've used toilet paper!
If it were my engine, I would run a 10W30. The Rotella 10W30 is a great choice.
Originally Posted By: fraso
The OEM bypass filters for 235s were add-on items...
You could either retrofit your car with a used bypass kit...
I've used toilet paper!