Engine oil is missing and it has no leaks undeneath it

Asked by Nov 28, 2009 at 12:52 PM about the 2007 Ford F-150

Question type: Maintenance & Repair

I did an oil change cause I checked deep stick and found no oil so I put new oil and filter, I didn't think anything bad cause is not overheating, about 3 weeks later I checked again and there was no oil or signs of water, I looked for leaks couldn't find any it was completely dry, I checked the water reservoir and it look kind of brown and it felt like oily, that's any one know what might be the problem? is been like that for few months and it has never overheated at all.
2007 F-150 58000 miles

4 Answers

6,665

sounds like its burning the oil.

1 out of 1 people think this is helpful.
8,580

Usually the only thing that will cause oil to leak into the cooling system is a cracked block or a leaking head gasket. If you head gasket is leaking you can see or hear air bubbles in the top of the radiator sometimes. If you don't see water in the bottom of the oil pan then you might have a leaking transmission cooler contaminating your coolant.

1 out of 1 people think this is helpful.
15

burnin oil

it could be a crack block, or this rare does he have an oil cooler built in to the radiator? some vehicles with a hitch have it.

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