Perkins 4GM - Coolant Specification

TPD1327E Chapter 5
Page 45
Coolant specication
The quality of the coolant which is used can have a
great effect on the efciency and life of the cooling
system. The recommendations indicated below
can help to maintain a good cooling system and to
protect it against frost and/or corrosion.
If the correct procedures are not used, Wimborne
Marine Power Centre cannot be held responsible for
damage caused by frost or corrosion, or for loss of
cooling efciency.
The correct coolant/anti-freeze to use is ‘Extended
Life Coolant’.
Extended Life Coolant
Qty: 5 litres – Part No 60061
Qty: 25 litres – Part No 60062
The coolant mixture must be a 50/50 mix with clean
water.
‘Extended Life Coolant’ has a service life of 6000
service hours or 6 years which ever is sooner.
‘Extended Life Coolant’ should not be mixed with
other products.
Unlike many protective coolants, ‘Extended Life
Coolant’ does not coat components with a protective
layer to prevent corrosion. Instead it uses virtually
non-depleting corrosion inhibitors.
An alternative to ‘Extend Life Coolant’ is Havoline
(XLC) Extended Life Coolant/Anti-freeze.
Using a coolant/anti-freeze which coats components
with a protective layer to prevent corrosion may
impair t.he efciency of the cooling system and lead
to the engine overheating.
An anti-freeze which contains the correct inhibitor
must be used at all times to prevent damage to
the engine by corrosion, because of the use of
aluminium in the coolant circuit.
If frost protection is not necessary, it is still extremely
important to use an approved anti-freeze mixture
because this gives a protection against corrosion
and also raises the boiling point of the coolant.
If combustion gases are released into the coolant
circuit, the coolant must be renewed after repair of
the fault..