It was made for those who are "semi" convinced.

As eluded to above, it's a little like mid-grade fuel. If the low-end unleaded isn't up to snuff, then use the high-end; not the "semi" stuff.

By the way Jack, I still think you need to keep your 260. Forget the problem-prone latter model you're considering.

I smell an oil war coming on and I've likely just pissed off a bunch of 104 owners.

Oh well..............

__________________
Mike Murrell
1991 300-SEL - Model 126
M103 - SOHC
"Fräulein"