1996 Buick Roadmaster Owner's Manual - Page 167

Hydroplaning Hydroplaning is dangerous. So much water can build up under your tires that they can actually ride the water. on This can happen if the road is wet enough and you're going fast enough. When your vehicleis hydroplaning, it has little or no contact with the road. Hydroplaning doesn't happen often. But can if your it tires haven't much tread if the pressure in one or or more is low. It can happen if a lot of water is standingon the road. If you see reflections from trees, telephone can poles or other vehicles, and raindrops "dimple" the water's surface, there could be hydroplaning. Hydroplaning usually happens at higher speeds. There just isn't a hard and rule about hydroplaning.The fast best advice is to slow down when is raining. it Driving Through Deep Standing Water NOTICE: If you drive too quickly through deep puddles or standing water, water can come through your i n engine's air intake and badly damage your engine. Never drive through water that is slightly lower than the underbody of your vehicle. If you can't avoid deep puddles or standing water, drive through them very slowly. Some Other Rainy Weathe DS Besides slowing down, allow some extra following distance. And be especially careful when you pass another vehicle. Allow yourself more clear room ahead; and be prepared have your view restricted to by road spray. Have good tires with proper tread depth. (See "Tires" in the Index.) I/ 4-17