TATA Motors Indigo eCS Owner's Manual & Service Book page 149

FUEL, LUBRICANTS & COOLANTS
FUEL (DIESEL) :
Fuel BS-III : High speed diesel conforming to IS 1460 or
DIN 51601 or equivalent is recommended to be used as
fuel.
Fuel BS-IV : Normal grade BS IV compliant diesel
conforming to IS1460 or EN 590 or equivalent is
recommended to be used as fuel. It is always
recommended to use BS IV Compliant fuel to get optimum
emission performance.
Do not use premium diesels available in the market for
example extra premium / Turbojet etc.
Recommended Fuel Specification.
Parameter
1 Cetane Number (min)
2 Sulphur content
3 Lubricity (HFRR)
NOTICE
Where oxidation catalytic converter is fitted, it is
mandatory to use Diesel fuel with sulphur contents as
given above. Use of any other diesel fuel can increase
the pollutants.
Unit BS III BS IV
CN 51 51
mg/kg 350 50
micon 460 460
IMPORTANT INFORMATION
At very low temperature, fluidity of diesel may become
insufficient due to paraffin separation. It is therefore
necessary to mix supplementary fuel with summer or winter
grade diesel. The supplementary fuel to be used is
kerosene or aviation turbine fuel. Ratio for mixing of
supplementary fuel and diesel are shown in the table.
Ambient
Temperature Summer
upto Deg. C grade diesel
Upto 0 100
0 to -10
-10 to -15
Care should be taken that diesel and supplementary fuel
are thoroughly mixed before filling.
Ambient
temperature Winter
upto Deg. C grade diesel
Upto -15 100
-15 to -20
-20 and below
WARNING: Do not mix gasoline or alcohol with diesel. This
mixture can cause explosion.
Percentage
Supplementary
fuel
0
70 30
50 50
Percentage
Supplementary
fuel
0
70 30
50 50
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