I just bought a 1984 euro 280e.
The car has 88,400 miles on it and the PO used castrol oil.
I have a w124 diesel that I use mobil 1 oil and am really happy with the oil.
I wanted to get recs for mobil 1 in my w123 as I wanted superior flow with the twin cams but did not want the engine to start leaking.....

any thoughts would be appreciated....

thanks for reading