Should have given you info on thermostat as well, if I remember correctly it is 76 degrees C you could have done a "service" job with that too before starting the engine.
No worries whenever you get time remove the t/stat, first do the needful cleaning you can do then keep 2 small pots handy, in one fill water and put it to boil, in the second keep ATF. Once the water comes to a near boil immerse the t/stat and see it has opened fully remove with long pliers and dip it into the room temp ATF. repeat this two or three times and you have a perfect almost new t/stat that wont bother you for a long time.
