Mitsubishi S6R S6R2 / S6R- S6R2 — Change coolant
Maintenance · Cooling system
For the Mitsubishi S6R S6R2 / S6R- S6R2, from the Mitsubishi operator's manual.
Applies to: Mitsubishi S6R engine, Mitsubishi PS6 engine
Before you start
- Do not allow hot coolant to contact skin
- Dispose of drained coolant according to local regulation
Procedure
- Start the engine and operate it until coolant temperature is 70°C to 80°C; stop the engine.
- Remove the radiator filler cap after the cap is cool enough to remove.
- Loosen engine and water pump drain plugs and remove radiator drain plug; drain coolant.
- Remove drain plugs of the air cooler pipes and drain.
- Flush the cooling system with cleaning solution and clean water.
- Fill the radiator with LLC and soft water at the specified concentration.
- Operate the engine until coolant temperature is 70°C to 80°C; stop and check level.
Specs & values
- Change coolant every 2 years
- LLC concentrations 30% to 60%
Source: Mitsubishi operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.