Mitsubishi Sigma (EU)
Coolant capacity & service interval
Mitsubishi Sigma (EU) coolant capacity is 8 liters. Service intervals are 50000 km or 24 months. The data covers 2 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Sigma 3.0 (1991-1996) |
|
| Sigma 3.0 24V (1991-1996) |
|
Additional Notes
- The Mitsubishi Sigma (EU) coolant system holds 8 liters across both the 3.0 and 3.0 24V engine variants, an identical capacity figure that reflects a shared cooling system architecture between the two configurations.
- An 8-liter coolant capacity is a moderately sized fill for a 3.0-liter V6 engine, consistent with the volume needed to circulate coolant through a larger displacement engine block, cylinder heads, and associated passages.
- The service interval for both variants is set at 50,000 km or 24 months under normal use conditions, meaning whichever threshold is reached first would trigger a coolant change.
- A 24-month time limit alongside the 50,000 km distance interval reflects the fact that coolant degrades chemically over time regardless of mileage, making calendar-based replacement a relevant factor even for lower-mileage vehicles.
- Both the 3.0 and 3.0 24V variants share the same 50,000 km/24-month interval, indicating no differentiation in coolant service scheduling between the standard and higher-specification 24-valve engine across the 1991-1996 model years.