TIAGO

GENERAL

FUEL, LUBRICANTS AND COOLANTS

FUEL (DIESEL)

Normal grade BS IV compliant diesel conforming

to IS1460 or EN 590 or equivalent is

recommended to be used as fuel.

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. Ratio for

mixing of supplementary fuel and diesel are

shown in the table.

Ambient

temperature

Summer

Supplementary

up to Deg. C

Percentage

Summer

grade

diesel

Supplementary

fuel

Up to 0

100

0 to -10

-10 to -15

Care should be taken that diesel and

supplementary fuel are thoroughly mixed before

filling.

Ambient

temperature

Summer

Supplementary

up to Deg. C

Percentage

Winter

grade

diesel

Supplementary

fuel

Up to -15

100

-15 to -20

-20 and below

WARNING:

Do not mix gasoline or alcohol with diesel. This

mixture can cause explosion.

Do not use premium diesels available in the

market for example extra premium / Turbojet etc.

NOTE:

Where oxidation catalytic converter is fitted, it is

mandatory to use Diesel fuel with Sulphur

contents as under. Use of any other diesel fuel

can increase the pollutants.

Recommended Fuel Specification for engine

Parameter

Unit

BS III

Cetane Number

(min)

Sulphur content

mg/kg

350

Lubricity (HFRR)

micron

460

FUEL (PETROL):

Unleaded regular grade petrol conforming to IS

2796:2008and BS IV specification and RON not

less than 91 is recommended. It is always

recommended to use correct fuel to get optimum

emission performance.

NOTE

Always use petrol of a correct specification in a

vehicle fitted with catalytic converter. Even single

fill of leaded petrol will seriously damage the

catalytic converter.

LUBRICANTS AND OILS:

Please use only recommended grades for

good performance.

DO NOT mix grease of different brands and

optional grades. Replace old grease completely.

The oil change periods recommended in

maintenance schedule should be adhered.

Coolants Qty:

1. Approx. 4 Liters for Petrol

2. Approx. 5 Liters for Diesel

Presence of dirt in coolant chokes up passages in

radiator, cylinder head and crankcase, thereby

causing overheating of engine.

To prevent rust formation and freezing of coolant

inside the passages of radiator, crankcase and

cylinder head use premixed coolant as

recommended.

It is recommended that the entire cooling system

should be drained and filled with fresh premixed

coolant.

Engine coolant antifreeze coolant as per class

II/JIS K2234.

NOTE:

We strongly recommend refilling your car’s engine

coolant only at a TATA Authorised service centre.