Contents Wiring diagrams Section: Cooling System (Mechanical) All sections

Cooling System Specifications Buick Roadmaster VIII

CAUTIONWhen battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.
ApplicationSpecification
Coolant Replacement Interval30,000 Miles
Coolant Capacity (1)
2.0L (VIN H)11.7 Qts. (11.1L)
2.2L (VIN 4)
"A" Body7.6 Qts. (7.2L)
"L" Body9.5 Qts. (9.0L)
All Others11.7 Qts. (11.1L)
2.3L (VIN A, D & 3)9.5 Qts. (9.0L)
3.1L (VIN T)14.0 Qts. (13.2L)
3.3L (VIN N)13.0 Qts. (12.3L)
3.4L (VIN S & X)13.0 Qts. (12.3L)
3.8L (VIN L & 1)13.0 Qts. (12.3L)
4.3L (VIN Z)
With Heavy Duty Radiator13.2 Qts. (12.5L)
With Normal Radiator12.6 Qts. (11.9L)
5.0L (VIN E)
With Heavy Duty Radiator17.3 Qts. (16.4L)
With Normal Radiator16.7 Qts. (15.8L)
5.7L (VIN P)15.3 Qts. (14.5L)
5.7L (VIN 7)14.5 Qts. (13.7L)
Pressure Cap
"L" Body18 psi
All Others15 psi
Thermostat Opens
Bonneville, Eighty-Eight, LeSabre, Ninety-Eight & Park Avenue
Starts196°F (91°C)
Fully Open223°F (106°C)
Corvette
Starts185°F (85°C)
Fully Open217°F (103°C)
Riviera
Starts196°F (91°C)
Fully Open219°F (104°C)
All Others
Starts189°F (87°C)
Fully Open207°F (97°C)
(1) Specification is approximate and includes heater capacity.
(1)Specification is approximate and includes heater capacity.

COOLING SYSTEM SPECIFICATIONS