I was reading in Popular Mechanics online that the New Grand Cherokee CRD "5W-30 low-ash engine oil" Anyone know anything about this oil? Sounds like it is an emissions thing so I imagine it will be in all of the CDI, CRD engines? I'm very excited about these new engines and the efficiency and power of them. I am fearing though that they are going to be expensive gadgets. I love my 124 but somewhere down the line I want a D.C. product with one of these marvelous engines, provided they don't prove to be duds.


MB sheet 229.31 approved oils; LA "low ash" Oils
Mercedes pioneered this new spec for passenger cars with diesel engines with EURO 4 or Bluetec exhaust particle filters, e.g. W211 E200 CDI, E220 CDI. The spec was introduced 7/2003. They are called LA "low ash" or "low SAPS" oils, low on sulfated ash, phosphorus and sulphur to limit exhaust particle filter pollution. In 2004 the ACEA introduced the new C3 spec (mid SAPS, normal viscosity) based on it. Change intervals extend to 15,000 km.


Looks like Amsoil is the only oil that meets that spec right now. I wonder if Mobil will make a new oil to that spec or we will see the Castrol Euro synthetic diesel oil here. I assume as the G.C. and 320 CDIs get out there we will see this oil on the shelves.

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My Daily : 96 E-300 Diesel with 195,000 miles
Retired: 92 300D 2.5 T 345K miles and for sale
Retired: 95 E320 157K miles and currently parked with blown engine

Both retired cars are for sale as is my w124 shop inventory