Originally Posted by P.E.Haiges

adrenelin,

Mobil 1 15W50 has kept my 300SD running well for 165,000 miles. It now has 275,000 and runs about as good as ever. Always changed oil every 10,000 miles.

I have used Mobuil 1 Truck and SUV oil since it came out but I'm waiting for the Mobil TurboDiesel oil to become available.

P E H