Excessive Oil Use With ST

CeeWhizzle · 10-05-2017, 11:34 AM

So I have a DOC Race 6466 kit - Before running the motor for the first time I put in a full 7L of Redline 5w40.

When I went to test drive it at only 18psi I did about 2-3 hard pulls in 2nd - 3rd gear. Everything was smooth and no leaks were found. The next day I took it to work and drove normally, but on the highway the low oil light came on - Ok. So I added 1L. Later that day I drove home and same thing.. Another 1 L... 2 days later.. yet again another 1L.. I checked my charge pipe to inspect for any oil and it has the typical amount that you would see. However I'm thinking there is probably a large amount in my intercooler now. I'll be pulling that this weekend to check it out, but aside from all of that - What is causing all this blow-by? I'm currently running my PCV vent to atmosphere since I have still yet come up with how I want to route it (Im guessing it could be due to this). Also have the RB PCV.

TheeGovernor · 10-06-2017, 12:28 PM

Quote:

Originally Posted by CeeWhizzle

So I have a DOC Race 6466 kit - Before running the motor for the first time I put in a full 7L of Redline 5w40.

When I went to test drive it at only 18psi I did about 2-3 hard pulls in 2nd - 3rd gear. Everything was smooth and no leaks were found. The next day I took it to work and drove normally, but on the highway the low oil light came on - Ok. So I added 1L. Later that day I drove home and same thing.. Another 1 L... 2 days later.. yet again another 1L.. I checked my charge pipe to inspect for any oil and it has the typical amount that you would see. However I'm thinking there is probably a large amount in my intercooler now. I'll be pulling that this weekend to check it out, but aside from all of that - What is causing all this blow-by? I'm currently running my PCV vent to atmosphere since I have still yet come up with how I want to route it (Im guessing it could be due to this). Also have the RB PCV.

If you were really using that much oil you would see a leak or a cloud of smoke. Look into your oil level sensor.

Rob@RBTurbo · 10-06-2017, 12:49 PM

Do you still have the flapper assembly intact on the high ventilation side?

R.G. · 10-06-2017, 01:10 PM

Quote:

Originally Posted by TheeGovernor

If you were really using that much oil you would see a leak or a cloud of smoke. Look into your oil level sensor.

This. Make sure you're not overfilled at this point.

Jeff@TopGearSolutions · 10-06-2017, 01:53 PM

Quote:

Originally Posted by CeeWhizzle

So I have a DOC Race 6466 kit - Before running the motor for the first time I put in a full 7L of Redline 5w40.

When I went to test drive it at only 18psi I did about 2-3 hard pulls in 2nd - 3rd gear. Everything was smooth and no leaks were found. The next day I took it to work and drove normally, but on the highway the low oil light came on - Ok. So I added 1L. Later that day I drove home and same thing.. Another 1 L... 2 days later.. yet again another 1L.. I checked my charge pipe to inspect for any oil and it has the typical amount that you would see. However I'm thinking there is probably a large amount in my intercooler now. I'll be pulling that this weekend to check it out, but aside from all of that - What is causing all this blow-by? I'm currently running my PCV vent to atmosphere since I have still yet come up with how I want to route it (Im guessing it could be due to this). Also have the RB PCV.

Perhaps a bad oil level sensor? At this point you may be over filling the oil pan with oil, it would be very hard to use that much oil without a significant and obvious leak.

Also with that potential overfill of oil it can have catastrophic effects on the engine.

I'd consider a complete drain and fill and inspect for obvious leaks. If no oil out the exhaust and nothing excessive in the charge pipe it's likely attributed to a bad oil level sensor. (That's my guess).

CeeWhizzle · 10-06-2017, 03:00 PM

I just started to get an Oil condition/Level sensor code today. My guess is also on this. I'll be draining the oil this weekend and ordering a new sensor. Thanks for the info guys. Will update further on once complete.

Jeff@TopGearSolutions · 10-06-2017, 07:18 PM

Quote:

Originally Posted by CeeWhizzle

I just started to get an Oil condition/Level sensor code today. My guess is also on this. I'll be draining the oil this weekend and ordering a new sensor. Thanks for the info guys. Will update further on once complete.

AK. · 10-09-2017, 02:24 AM

Same issue happened to me. 6466 as well. Oil was consuming lots of oil. Turbo was sent back to Precision for inspection/warranty and they said nothing was wrong... I'm assuming it's because of the lack of crankcase ventilation? Just had the heads tapped/plugged and installed RB PCV routed to a Mishimoto OCC. Hope that should do. I did my oil pan gasket and oil level sensor recently as well. Will post for updates.

10-05-2017, 11:34 AM	#1
CeeWhizzle Lieutenant 77 Rep 538 Posts Drives: 2009 E92 335i Join Date: Feb 2014 Location: Regina, SK iTrader: (1)	Excessive Oil Use With ST So I have a DOC Race 6466 kit - Before running the motor for the first time I put in a full 7L of Redline 5w40. When I went to test drive it at only 18psi I did about 2-3 hard pulls in 2nd - 3rd gear. Everything was smooth and no leaks were found. The next day I took it to work and drove normally, but on the highway the low oil light came on - Ok. So I added 1L. Later that day I drove home and same thing.. Another 1 L... 2 days later.. yet again another 1L.. I checked my charge pipe to inspect for any oil and it has the typical amount that you would see. However I'm thinking there is probably a large amount in my intercooler now. I'll be pulling that this weekend to check it out, but aside from all of that - What is causing all this blow-by? I'm currently running my PCV vent to atmosphere since I have still yet come up with how I want to route it (Im guessing it could be due to this). Also have the RB PCV.
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10-06-2017, 12:49 PM	#3
Rob@RBTurbo Lieutenant Colonel 387 Rep 1,571 Posts Drives: '08 335I AT, '14 M6 DCT Join Date: Jan 2008 Location: St. Louis, MO iTrader: (5)	Do you still have the flapper assembly intact on the high ventilation side?
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10-06-2017, 03:00 PM	#6
CeeWhizzle Lieutenant 77 Rep 538 Posts Drives: 2009 E92 335i Join Date: Feb 2014 Location: Regina, SK iTrader: (1)	I just started to get an Oil condition/Level sensor code today. My guess is also on this. I'll be draining the oil this weekend and ordering a new sensor. Thanks for the info guys. Will update further on once complete.
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10-09-2017, 02:24 AM	#8
AK. Lieutenant 137 Rep 589 Posts Drives: E90 M3/E92 M3 Join Date: Jan 2015 Location: California iTrader: (3) Garage List 2010 E90 335i [10.00]	Same issue happened to me. 6466 as well. Oil was consuming lots of oil. Turbo was sent back to Precision for inspection/warranty and they said nothing was wrong... I'm assuming it's because of the lack of crankcase ventilation? Just had the heads tapped/plugged and installed RB PCV routed to a Mishimoto OCC. Hope that should do. I did my oil pan gasket and oil level sensor recently as well. Will post for updates.
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