Is this coolant level behavior normal on a 2009 Pajero?
I have a 2009 Mitsubishi Pajero 3.5 V6 . I've noticed the coolant in the overflow reservoir rises to around the MAX mark when the engine is fully warmed up, then drops back to about the middle between MIN and MAX after it cools overnight.
I haven't experienced any overheating, the temperature gauge always stays normal, and I don't see white smoke or milky oil. However, I feel the reservoir level has dropped by about <5% over the last month.
Is this considered normal due to coolant expansion or slight evaporation, or should I be looking for a small leak? Has anyone experienced something similar with their Pajero?