Fluids Capacities and Specifications

Engine Oil Capacities
Crankcase
4.3 L	4.5 quarts	(4.3 L)
5.7 L	5.0 quarts	(4.7 L)
6.5 L	8.0 quarts	(7.6 L)
7.4 L	6.0 quarts	(5.7 L)
Cooling System Capacity
Cooling System
4.3 L	13.8 quarts	(13.1 L)
5.7 L	15.5 quarts	(14.6 L)
7.4 L	22.5 quarts	(21.2 L)
6.5 L
Motorhome	24.7 quarts	(23.4 L)
Commercial	25.0 quarts	(23.5 L)
Fuel Tank Capacities
Fuel Tank
Standard	40 gallons	(151 L)
School Bus (B3D or B3M)	30 gallons	(113 L)
Motor Home
Standard	40 gallons	(151 L)
Optional	60 gallons	(227 L)
Optional	80 gallons	(303 L)
(178, 190, 208 or 228 inch wheel base)

Many people saved thousands of dollars by doing some technical service procedures for their 1999 GMC Trucks Forward Control Chassis by themselves. The easiest type of technical maintenance is changing engine oil, axles oil, manual and automatic transmission oil. Changing break fluid in 1999 GMC Trucks Forward Control Chassis is also is a simple task. If you want to change engine oil, for instance, by yourself and save a couple of bucks you need to know how much this fluid engine oil is needed for 1999 GMC Trucks Forward Control Chassis. If you fill engine or axles of your car with oil to the brim it may damage your vehicle engine or axles and void manufacturer warranty. Good news! We have this information and we give it to you for free.

Note: all capacities are approximate. When adding, be sure to fill to the appropriate level, as recommended in user manual for your 1999 GMC Trucks Forward Control Chassis. Keep in mind that all information here is provided “as is” without any warranty of any kind.

Note: not all air conditioning refrigerants are the same. If the air conditioning system in your vehicle needs refrigerant, be sure the proper refrigerant is used. If you're not sure, ask your dealer.

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