I have no idea when the oil change was done. So I changed the engine oil and the oil filter.

This is a Jeep’s drain bolt which is 27mm diam.

Look at that dirty oil!

The right filter is the old one,

and replaced to the new one.

In this time, I chose this Castrol MAGNATEC DIESEL 10W-40, because white smoke is coming out of the muffler.

Filling the oil.

I think the white smoke reduced a little bit.

I THINK.