Alfa Romeo Giulia-GTA Owner's Handbook Manual page 5

SCHEDULED SERVICING
Correct maintenance of the car is essential for ensuring that it maintains its performance and its safety features, its environmental friendliness and low
running costs for a long time to come.
WASHING THE CAR IN A ROLLER AUTOMATIC CAR-WASH
The car should never be washed in an automatic roller and/or big brush car wash. Wash the car by hand only, using pH-neutral detergents.
For more details about washing the car, refer to the "Preserving the Bodywork" section of the "Maintenance and Care" chapter.