hi,
c/o the new oil (2days ago) from same car ML320 ( Mobil 1 0W-40) and use the new one " Mobil 1 Extended performance 15W-50 " ...test drive from LA to Long Beach and go up to Santa Ana then go back home.... the Car does feel BIG diff when you accelerate... Engine less noise and speed up faster.
bought two cases , used 8 Qts and it cost Total $84.31 @ Kragen. I love it. This is just my 3 cents feedback to let all of you know. will run this til 15000 miles then I may try to AMSoil They claimed their is better than Mobil 1. Only one thing it is trouble me is I can buy 'em from stores. I have to order and pay for shippment( which I don't like) .