Cool thanks for the info. The reason I say what I did about 10-30 oil is because we use it on my dad's 87 mazda and my mom's 89 cadillac and used it also on my 86 cougar I had previous. The reason we used it was because of the resistance of a thicker oil. In fact my dad's truck has sticking valve lifters and we have to add marvel mystery oil along with the 10-30 to keep them from making that annoying noise.
89 190E 2.6