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My 2007 c15 acert cat is burning oil. 1 gallon per 400 miles.

My 2007 c15 acert cat...
My 2007 c15 acert cat is burning oil. 1 gallon per 400 miles. No real smoke just the norm when you shift a little puff. Blow by is ok. We got low oil pressure light running it the other day we can't make the pressure go down again. Think it could be a diesel in the oil thing??
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Answered in 4 minutes by:
7/29/2015
Technician: Cat Man, Cat Engine Expert replied 7 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 asking your question and requesting me. I will try and help you out.
Yes it's very possible you could have fuel in the oil. I have seen this many times. I like to take an oil sample to verify.
If there is fuel in the oil. It can come from two places. It could be an injector leaking or the fuel pump seal.
If there is no fuel in the oil. You may have cylinder wear causing the oil consumption. These engines can wear in the cylinders and consume oil and not show any blowby.
Please reply back if you need more help or have more questions. I am happy to assist.
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Customer reply replied 7 years ago
Ok we are taking an oil sample to cat today. The motor only has 400k on it. I was hoping for an easy fix. Truck runs really strong and builds 55lbs of boost. I have had tuned to heavy haul program
Technician: Cat Man, Cat Engine Expert replied 7 years ago
Sounds good.
Yeah taking an oil sample is the best thing to do. Hopefully it's nothing serious.
Please reply back if you need more help or have more questions. I am happy to assist.
Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 10,344
Experience: I am ASE Master Truck Certified.
Verified
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