My wife picked up 2 cases of Mobil 1 0W-40 oil today for my 98 E320. Thanks to Kuan, who listed several sources of Mobil 1 0W-40, I purchased it from Boncosky Oil Company in Elgin Il (847)741-2557. They are located 30 minutes from my house and only sell by the case at $4.22/qt.

I noticed that the Mobil 1 0W-40 label states "superior sludge and wear protection under severe, short trip operation" which the Mobil 1 15W-50 does not state. Last winter I used non-synthetic 10W-40 weight oil in the winter and noticed that on short trips in freezing temperatures that a white sludge would form under the oil cap.

Time will tell how the Mobil 1 0W-40 will perform on short trips in freezing temperatures.

Any one have experience with synthetic oil on short trips in freezing temperatures?

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Ray
1998 Mercedes E320, 200K Miles
2001 Acura 3.2TL, 178K Miles
1992 Chevy Astro, 205K Miles