[gusc]

Before you get carried away try a liquid crankcase stop leak, cheap and easy and well worth a try.

I always go this route before I do any serious work!

 

[gusc]

I've used it for 50 years including in my RV PS system with never a problem.

Unlike cooling system leak stoppers it is a solvent that swells seals, if anything it makes oil thinner. It does not plug holes.

 

[gusc]

Your call, but oil stop leaks are not any way harmful and sometimes they work.

I've had both poor and good results, but it is a cheap and easy first effort.

It will not, repeat, will not plug any holes anywhere - it is much thinner than the oil.