Hello. Your OM642 will work with 0w30/5w30/5w40. Most importantly is if your oil meets the specs which are 229.50/51/52. .52 is the latest formulation for the cars. Now, since yours is a 2008, it does not have the aftertreatments for your emissions. To which you can run a any full saps oil that meets the 229.50 spec and you'll be fine. Your transmission will either take the red fluid or blue fluid, but I'm guessing it's the red one. Go with MB original fluid or Amsoil transmission fluid, both are very good and will last. Generally transmission fluid will last anywhere between 75k and 100k miles. However, depending on driving style and conditions, that interval should be shortened to 50k to 75k miles. Change your transmission fluid every 50k miles and you'll be fine. I think the spec is 236.14/15 for the fluid. You will have to check with your dealer or if you're using an online store, call them to verify with your vin.

fcpeuro.com is highly recommended as they have lifetime warranty on everything, even fluids. GL.

 

Hello. Your OM642 will work with 0w30/5w30/5w40. Most importantly is if your oil meets the specs which are 229.50/51/52. .52 is the latest formulation for the cars. Now, since yours is a 2008, it does not have the aftertreatments for your emissions. To which you can run a any full saps oil that meets the 229.50 spec and you'll be fine. Your transmission will either take the red fluid or blue fluid, but I'm guessing it's the red one. Go with MB original fluid or Amsoil transmission fluid, both are very good and will last. Generally transmission fluid will last anywhere between 75k and 100k miles. However, depending on driving style and conditions, that interval should be shortened to 50k to 75k miles. Change your transmission fluid every 50k miles and you'll be fine. I think the spec is 236.14/15 for the fluid. You will have to check with your dealer or if you're using an online store, call them to verify with your vin.

fcpeuro.com is highly recommended as they have lifetime warranty on everything, even fluids. GL.

 

15w40 CK-4 oil. 229.xx oils are for gasoline engines ONLY

 

Hello. 15w40 oil was reformulated and now they recommend any engine that runs aforementioned oil, should use 5w40, with same and added benefits. As far as your 229.xx oils and gasoline only, depending which spec you go with, you can use the same oil for BOTH gasoline and diesel. It's up to the customer to decide which route he takes. GL.

 

Thanks for the thoughtful reply. I was thinking along the same lines with you in terms of the transmission fluid change interval. I have to go back through my service records and see where I stand.

 

And I love the fact that I don't have to mess with urea with my 2008!

 

I second the idea of buying from FCP Euro, I return my used oil change kits for a full credit all the time. Seems too good to be true but its not. They sell quality products as well.