GMC Safari (USA / CAN)
Coolant capacity & service interval
GMC Safari (USA / CAN) coolant capacity ranges from 12,8 to 15,5 liters. Service intervals occur every 240000 km or 60 months. The data covers 4 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Safari 4.3 V6 (2004-2005) |
|
| Safari 4.3 V6 (2002-2003) |
|
| Safari 4.3 V6 (1999-2001) |
|
| Safari 4.3 V6 (1993-1998) |
|
Additional Notes
- The GMC Safari 4.3 V6 cooling system holds 12.8 liters as the standard fill capacity across all model years from 1993-2005, representing the baseline volume for vehicles without a rear heater circuit.
- When a rear heater is installed, the total coolant capacity rises to 15.5 liters, a difference of 2.7 liters that accounts for the additional fluid volume circulating through the rear heating circuit and its associated plumbing.
- The rear heater configuration adds roughly 21 percent more coolant volume compared to the standard fill, which is a meaningful distinction during a full drain-and-refill service to avoid underfilling the system.
- The specified change interval under normal use conditions is 240,000 km or 60 months, whichever comes first. The 60-month ceiling means a vehicle covering low annual mileage still reaches a mandatory coolant change at the five-year mark regardless of distance traveled.
- The 240,000 km distance threshold is consistent with long-life coolant formulations, which rely on extended-life additive packages designed to maintain corrosion inhibitor effectiveness over that distance under normal operating conditions.
- All four model year groupings spanning 1993-2005 share identical capacity and interval specifications, meaning no variation in coolant service requirements was introduced across the full production span of the 4.3 V6 in the Safari.