How do I fill a 300SDL (6 cyl) with coolant?
I Drained my '87 300SDL 6 Cly Diesel for a flush and new coolant and I can't seem to refil it. It only took about 1 1/2 gallons. I idled the enging until it was hot but no hot water went into the radiator. I loosened the top hose from radiator but only cold water came out.
Whats the secret? My older 300SDs always filled easily.
P E H