I picked up a VW Jetta 1996 with a 2.0 i did an oil change and the oil that came out was horrid, looked 5 years old, the PO said he cant remember when the oil was last changed, it was black like coffee and like water, i put in Shell R T5 10-40 and after 15 miles, yes 15 miles the new oil is gray and thin as all [censored]. It does not even look like oil. The car seems to run fine. No strange noise at all.
I think im going to change it again.
I think im going to change it again.