Fuel Reauirements
The ratio of Methanol to gasoline
Use only ‘Premium unleaded
meetina ASTM standard D 439:
must not exceed 3% plus
additional cosolvents.
The
number (posted at the
Using mixtures of Ethanol and
pump) must be 91 min. It is an
Methanol is not allowed. Gasohol,
average of both, the Research (R)
which contains 10% Ethanol and
octane number and the Motor (M)
90% unleaded gasoline, can be
octane number:
+
This
used.
is also known as ANTI-KNOCK
These blends must also meet all
INDEX.
other fuel requirements such as
Unleaded gasoline containing
resistance
knock, boiling
oxvaenates such as Ethanol,
range, vapor pressure etc..
TBA can be used
ed the ratio of any one of these
oxygenates to gasoline does not
exceed 1
MTBE not to exceed
15%.
Gasoline Additives
A major concern among engine
manufacturers is carbon build up
caused by gasoline. Mercedes-
Benz recommends to use only
quality gasoline containing
additives that prevent the build up
of carbon deposits.
After an extended period of using
fuels without such additives,
carbon deposits can build up
especially on the intake valves
and in the combustion area,
leading to engine performance
problems such as:
l
warm-up hesitation,
l
unstable idle,
l
knocking/pinging,
misfire,
power loss.
Do not blend other specific fuel
additives with fuel. They only
result in unnecessary cost, and
may be harmful to the engine
operation.
115
Damage or malfunctions resulting
from poor fuel quality or from
blending specific fuel additives are
not covered by the Mercedes-
Benz Limited Warranty.
Summary of Contents for 190E 2.3 1993
Page 1: ... A A ______ __w c Mercedes Benz Owner s IManual 1993 ...
Page 11: ...11 ...
Page 119: ...Index ...
Page 124: ...NOTES 127 ...
