How hot should my 5.9 Cummins run?
190 Degrees Fahrenheit (1999-2009 2013 Cummins) 200 Degrees Fahrenheit (2010-2012 Cummins)
What is considered high mileage for a 5.9 Cummins?
Like the Duramax, Cummins diesel engines can be expected to last a long time. Between 350,000 and 500,000 miles is usually considered high mileage on a Cummins diesel.
What is the normal operating temperature of a diesel engine?
The traditional thinking is that the “normal” sustained operating temperature range of oil in diesels is between 210 and 230 degrees Fahrenheit when towing.
What temp should a 12 valve Cummins run at?
1998, quad cab, 12 valve, 4×4, auto converted to 5 speed, engine out of a 98 freightliner truck (still 12 valve 5.9L CTD) pacbrake exhaust brake, Runs on waste vegetable oil. The Automotive service manual we have to study for the engineers exam says normal operating temp is 180-210 F which would be 82-99 C.
Is 100k high mileage for a diesel?
According to Prosource Diesel, anything over 350,000-miles is considered high mileage for a used diesel pickup with a Cummins or Duramax engine under its hood. Anything over 350,000-miles is also regarded as high mileage for a Powerstroke diesel engine.
How long will 5.9 Cummins last?
So, the general consensus seems that a Cummins engine’s life expectancy is from 300k-400k miles, but if you follow the correct steps, you could, and should have some sort of control over the life span of your engine, and we don’t think crossing your fingers will really suffice.
What degrees does the thermostat fully open?
The fully open temperature is normally 12-15 degrees above the opening temperature. To test a thermostat, it is common practice to put it into a pan or kettle of water and bring this boil, observing that the disc valve goes from open to closed.
What temperature is 15W40 good for?
“Diesel has the widest performance range with 5W40,” says Mark Betner of Citgo. “Its starting temperature range is down to minus 22 F (compared with 15-plus with 15W40) up to 122 degrees F (same as 15W40).
How hot is too hot for a diesel engine?
You can run up to 220°F all day long without any problems. The fluid will last a long, long time at that temperature. You can run up to 250°F for up to a half hour at a time. Above 250°F you should find a safe place to stop and idle or fast idle in park or neutral to cool the trans.