[MBZ] Collective Oil Wisdom, Pls...

[Chuck Landenberger]

 I spoke w/Arizona Petroleum that is a local distributor of most  
brands of motor oil to see if they had any Mobil1.  "Very little" and  
"no 15W/50" was the answer.  But, they do have Castrol Full Synthetic  
5W/50 in ample supply.   I was told Castrol Full Synthetic (Syntec?)  
is Mercedes-Benz approved...

What's the collective opinion of this for my two cars...  '86 190E  
2.3 16V and '92 500E???  Cost is about $39 for 6 quart case.

TIA,

Chuck
Phoenix, AZ