My son drives my 2007 ML CDI with the particulate filters.
The car has 260,000 miles
Between Mobil One oil changes sometimes you get a CEL message that says " oil a bit low top off at next fueling" or something like that.
So my son stops and buys Mobil One 5 w 30, but not the ESP formula, spec 229.xx.
He added a quart and drove about 100 miles with it.
Does anyone think that this mistake will jeopardize and clog the emissions system?
I ask because coincidently a new CEL came on today. I will have it read.
I had him change oil to the correct stuff today as he was close to the 10,000 miles anyway.
Any thoughts are appreciated.
thanks


jz