I have changed the oil in the 1985 300D twice now and have gone with Delo 400 both times. Yesterday I took a day off from work and adjusted the valves and replaced one of the motor mounts and one shock - will do the other one after I get another shock. The valve adj. eliminated approximately 85% of the vibration that I was experiencing during idle and quietened down the car alot. I am going to replace the timing chain and tensioner within the next few weeks. I am no longer getting oil in the bottom of my air filter housing and after using Gunk and pressure washing the engine it looks great. I have a leaky fuel injector that I will be addressing later this week.
Jim
'85 300D
'95 E320
'97 CRV (wifes)