The problem with the "free" oil changes is that the dealership will not use the right oil in them.
You need oil that is "CI-4 PLUS" rated for the CRD. The minimum spec in the manual is not, and is the wrong oil for that engine, however it is what the dealer will use for the free oil changes....
Which brand of oil, I don't care - as long as it is API Service Category CI-4 PLUS.
Here, I will recycle an old post of mine - just so I don't have tp retype it..
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The manual specs a minimum of CF rated oil. However, you want a
CI-4 PLUS rated oil.
Here's why:
The API Service Ratings
info here:
http://api-ep.api.org/filelibrary/API_MotorOilGuide_2004.pdf
info here:
http://api-ec.api.org/printerformat.cfm?ContentID=99EAFC66-2882-41BB-84BCFB52B25D4CA3
specifically say:
API CI-4 oils are superior in performance to those meeting API CH-4, CG-4 and CF-4 and may be used in engines calling for those API Service Categories.
That clearly states that CI-4 rated oil meets and exceeds the specs for CF oil.
Now, the CRD is a HIGH PRESSURE turbocharged DIRECT INJECTION diesel engine with an EGR system.
The CF rating is for:
off-road, indirect- injected and other diesel engines including
those using fuel with over 0.5% weight sulfur.
The CRD is direct injected, and does not use high sulfur diesel.
The CI rating is:
For high-speed, four-stroke
engines designed to meet 2004 exhaust
emission standards implemented in 2002. CI-4
oils are formulated to sustain engine durability
where exhaust gas recirculation (EGR) is used
and are intended for use with diesel fuels
ranging in sulfur content up to 0.5% weight.
Additionally the service rating for CI states:
Can be used in place of CD, CE, CF-4, CG-4,
and CH-4 oils. Some CI-4 oils may also qualify
for the CI-4 PLUS designation.
The CI-4 PLUS designation is "extra" to the CI-4 rating:
the “CI-4 PLUS” designation identi-
fies oils formulated to provide a higher level of protection against soot-related
viscosity increase and viscosity loss due to shear in diesel engines.category to maintain performance.
Shell Rotella T Synthetic, Mobil 1 Truck & SUV (or whatever it is called now), and Mobil Delvac 1 all are CI-4 PLUS rated, and not only
may be used in place of the required CH rating as stated in the manual, they
exceed the performance of the CH rated oils - and are specifically designed for the type of motor that the CRD is.