Alfa Romeo GT Owner's Manual page 221

IMPORTANT
Engine oil
Should prevailing use of the car be under
one of the following specially heavy condi-
tions:
– trailer or caravan towing
– dusty roads
– short distances (less than 7-8 km) re-
peated and with external temperatures be-
low zero
– frequently idling engines or long distance
low speed driving or in case of a long term
inactivity
replace engine oil more frequently than re-
quired on the Scheduled Maintenance Pro-
gramme.
220
IMPORTANT
Diesel filter
The variety of the degree of purity of the
fuel oil in commerce may make it necessary
to change the fuel oil filter more frequently
than stated in the Scheduled Maintenance
Programme. If the engine is "sobbing" it
is a sign that the filter needs changing.
IMPORTANT
Air cleaner
Using the car on dusty roads change the
air cleaner more frequently than specified in
the Schedule Maintenance Programme.
For any doubts concerning the intervals be-
tween the engine oil and air cleaner re-
placement in relation to how the car is used,
contact Alfa Romeo Authorised Services.