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My detroit diesel DD15 has 586,000 miles. In the last 40,000…

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My detroit diesel DD15 has...
My detroit diesel DD15 has 586,000 miles. In the last 40,000 miles the oil consumption has gone from zero to 1 gal. every 2000 miles. No visible leaks underneath. Fuel mileage is poor at 5.4 mpg. the engine is in a 2007 Freightliner Columbia. This is an alarming amount of oil consumption in such a short period of time. The engine also has a tendancy to raiswe the coolant temp to 200 when accelerating from a stop sign or on ramp. It also heats up to 200 when idling. Any help on the oil consumption?
Submitted: 10 years ago.Category: Medium and Heavy Trucks
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Answered in 4 hours by:
5/25/2012
Technician: Cat Man, Cat Engine Expert replied 10 years ago
Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 10,344
Experience: I am ASE Master Truck Certified.
Verified

Hi. Thanks for using JA! I will try and help you out.

 

It sounds like your engine is burning the oil. I have seen this before. If you have no leaks on the engine, it is most likely being burned in the cylinder due to piston and ring wear and possibly valve guide wear.

 

Please let me know if you need more help or have more questions.

Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 10,344
Experience: I am ASE Master Truck Certified.
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