>From the 2008 C-Class Owner's Manual
Commercially available diesel may contain 5 % bio-diesel. This proportion
will not affect vehicle performance or wear.
Using diesel fuel that does not comply with EN 590 requirements (or
comparable standards) can lead to increased wear, engine damage and damage to
the
exhaust system. Do not use the following:
•
Marine diesel
•
Bio-diesel
•
Vegetable oil
•
Petrol
•
Petroleum
•
Kerosene
•
Heating oil
Do not mix fuels such as these with diesel fuel. Do not use any special
additives. For exceptions, see "Low outside temperatures, flow improvers". The
use
of such non-approved fuels and/or fuel additives will result in a restriction
of your warranty entitlement. Do not start the engine if you accidentally
refuelled with the wrong fuel. Otherwise you risk engine damage. Have the fuel
system emptied completely.
Do not use gasoline to refuel vehicles with a diesel engine. Never mix diesel
with gasoline. Even small amounts of gasoline result in damage to the
injection system. Damage caused by adding gasoline is not covered by the
warranty.
Bio-diesel (VME fuels, oil methyl ester) and vegetable oil
Your vehicle is not suitable for use with bio-diesel or vegetable oil. The
use of bio-diesel or vegetable oil may lead to increased wear or engine damage.
If you use bio-diesel/vegetable oil or mix diesel with bio-diesel/vegetable
oil, your warranty entitlement will be restricted. Bio-diesel is sometimes
referred to as fatty acid methyl ester (FAME).
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