Raptor ran hot today in 50 degree weather fan was on the whole time and now run a high flow impellor and fluidyne radiator. Looked into the radiator and it was low, and also looked like soot was in it? Just checked radiator maybe a hint of fuel in the mix. Also looks like my oil dipstick is double what is should be and is a tan color. Another blown headgasket? That would be 5 in the last 2 years.