Hi,

I am doing the first oil change (first by me) on our 94 e320 and from the maintenance log of the car the previous service entries show use of various makers (Pennzoiol, Castrol, Valvoline, etc.) of 15w-40 oil. My question is...is that the correct oil type to use?

background info...94 e320, about 74,000 miles, full maintenance history (all entries show 15w-40), reside in Jacksonville, FL, driven by wife in non enthusiastic driving style, 3500 mile oil change intervals

I use 10w30 in my Miatas, non synthetic, change at 2500 miles mainly because I like wrenching on the Miatas