1998 Peugot 306 automatic. Car was running cool. Changed thermostat. Car now runs at temp, no overheating. Water was spotless before the thermostat was changed. Now lots of oil in the water. Is this causal or am I just unlucky? Local mechanic advised disabling the oil cooler – thinks it might be cracked inside. Does this make sense?
new thermostat causes oil in water?
Keywords:oil in coolant