1998 GMC Safari Owner's Manual - Page 201

Hydroplaning usually happens at higher speeds. There just isn't a hard and fast rule about hydroplaning. The best advice is to slow down when raining. it is City Driving Driving Through Deep Standing Water NOTICE: If you drive too quicklythrough deep puddles or standing water, water can come in through your 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 standing water, drive or through them very slowly. Some Other Rainy Weather Tips I 0 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.) One of the biggest problems with city streetsthe is amount of traffic on them. You'll want to watch out for what the other drivers are doing and pay attention to traffic signals. 0