I've been having a oil problem from some time now and I haven't figured out what it could be. A few weeks ago I changed my oil and just the other day I checked my oil level cause the truck seemed to be a little sluggish the oil level was below add so I added some oil drove around for a few days truck started feeling the same way checked oil level and there was no oil on dipstick at all I've checked everything imaginable but still haven't figured out the problem oil pressure is right where it needs to be oil pan gasket has no leakage rear main isn't leaking. No leaks around oil filter either. Truck has very very little to no blowby.. Truck does not leak a drop of fluid anywhere. Need to know if anyone has any thoughts on my problem and how I could fix it. Thanks

 

Check for oil in exhaust, the turbo could have a bad seal and pushing out the exhaust. If that's clean, pull the front side of the turbo discharge hose off and look there.

 

Just got done checking there. I removed the down pipe and did not see any oil in the exhaust. I have pulled the turbo discharge pipe off and did not see anything there either..... I'm wondering if it could be bad piston rings but that would cause considerable amount of blow by correct?? Could my valves have anything to do with it. I'm just completely confused as to where all my oil is going. It's not blowing burnt oil smoke nor does my truck blow smoke at all it burns very efficient I average around 15-21 mpg but since this oil problem started up it's been hanging around 12-13 mpg.... I do want to state that I have an early 06 before all the emissions stuff was put on. All that is done to the truck is 4" strait pipe and cold air intake truck has 325/65/18 tires/wheels and 3" lift. Other than that it's bone stock. No tuner or programmer.

 

To check blow-by, as the truck is idling take off the oil filler cap, turn it upside down (make sure it's clean) and set it back on top of its hole. If there is excessive blow-by, it will blow the cap off. Keeping in mind, the shake of the engine could just wiggle it off....you want to see if the blow-by pushes it up and off.

 

How does low oil result in a sluggish truck????

The lifters are solid not hydraulic.

Does a blue cloud follow you everywhere you go? Then you're burning it. If you're not burning it, or dripping it, your neighbor is draining it and laughing at you trying to figure out where your oil is going....

 

I haven't seen a blue cloud behind the truck. But today i noticed a licht knocking sound seemed like it was coming from the valve cover. I was guessing maybe a broken valve spring or somethin not sure but I suppose I'm just gonna have to take it to a shop and have them evaluate the problem not really what I wanted to do but oh well I guess.