Oil grade for diesels? - Page 2 - Smart Car of America Forums : Smart Car Forum

Karlf · 10-19-2009, 07:23 AM

Quote:

Originally Posted by lebikerboy

The cdi doesn't use a particulate filter so in theory any MB 229.3 oil should do. However the cdi owner's manual states that MB 229.5 is required. I used to use Mobil 1 0W-40 but now use either Amsoil European Formula 5W-40 or Mobil 1 ESP 5W-40 both of which are MB 229.51 compliant and yes it's better for the EGR valve. In addition we fuel our smart with B50 biodiesel which really reduces the soot and makes the car run so much quieter.

Hi, just a quick question...
is "Mobil 1 ESP 5W-40 both of which are MB 229.51"
the same oil as "Mobil 1 Turbo Diesel Truck 5W-40". I'm trying to buy at walmart... Thanks

lebikerboy · 10-19-2009, 10:57 AM

No, they're definitely not the same. The Mobil 1 Turbo Diesel Truck 5W-40 is designed to be used in large displacement truck engines. I'd use the Mobil 1 ESP 5W-40 or any oil which meets the specs...