| Hard to say. I had the disappearing oil experience a couple times. The same thing with no blue smoke. I changed a couple things. One, I went back to OEM oil filters or Fleetguard becuase they both have the the anti-drainback valve. I have two filters which lie on their sides, so it makes a big difference. I also always allow the engine to run for at least 5-10 minutes and then shut down and wait 5 minutes or fill with fuel and then check. Also, try to make sure you are on dead level ground. With my rig a little slant can make a big difference on the dip stick.
Of course it could be bad news and your front main seal is shot. Hope not. Try keeping a regular eye on it - check a couple times a week or every few hundred kms. Ivf it is the front main seal, don't delay in replacing it. Just like fresh oil and filters, seals are cheap - rebuilds aren't. |