1993 Cadillac DeVille Owner's Manual - Page 296

NOTICh: When using concentrated washerfluid, follow the qanufacturmr +tructions for adding water. )on%mix water with ready-to-use washer fluid. Water can cause the solution to freeze and damage your washer fluid nk and other parts the washer system. Also,water of esn' !le; as .. - as er fluid, washer fluid tank only 3/4 full when it's very cold. This allows for expansion, which could damage the tankif it is 0- --1plete':-full. pill ya us adiator antifreeze in your wind - .ield washer. It can damageyour washer system and paint. HEADLIGHT WASHERFLUID (EXPORT ONLY) To Add: t - i" 3 . Open the cap labeled "WASHER FLUID ONLY." Add windshield washer fluid until the bottleis full.