We drove about 200 miles on Monday.
I stopped to fill up and let the engine idle for 10 .minutes then fast idle speed for maybe 5 minutes.
When we left out the warning light was on.
First time ever.
We drove 45 minutes and arrived at our destination.
Engine and transmission temp s were normal.
Oil pressure was as usual.
There was some, maybe a pint of coolant on the fender.
The filler cap on overflow was not tight.
I removed and spin it on tight.
I sprayed with awsome and wiped clean.
We drove a few 100 miles today and no loss of coolant.
When I started engine this am the yellow cleared and stayed off.
When we stopped for breakfast and and idled a few minutes the yellow showed up.
I shut it down for breakfast.
Then started to run the last 100 miles.
The yellow stayed on.
Engine temps running 188 to 194 maybe
Transmission 190 or so.
On my mc1000
What should I be looking for ???
99 L 11. 500 hp ism