Catch can to solve oil drinking?
08-23-2010, 01:48 AM
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2011 Ultima GTR
Catch can to solve oil drinking?
Was speaking to a local tuner here in AUS and he was telling me (he owned a C63 before) that he thinks its best to install a catch can on a C63 to help it stop drinking so much oil.
His theory/explanation went along the lines of.
- The car drinks oil
- Its breather system is not that great and it puts a lot of oil into the intake manifold, to burn it
- The manifold gets oily, car burns oil, results in the smoke/soot from exhaust and obviously drinking oil
- Fix this by fitting a catch can/breather can to condense the oil vapors...
Results in improved performance (Overnight oil from the intake manifold settles in at the bottom, gets "sucked" into intake a some point or when car is turned on) and less/no more oil drinking.
Having spoken to another tuner, they've mentioned that they havn't done or heard of this before, and they even have a CLK63 as a track car.
So, anyone got experience/feedback/information on installing a catch can on a C63. Yay or Nay?
His theory/explanation went along the lines of.
- The car drinks oil
- Its breather system is not that great and it puts a lot of oil into the intake manifold, to burn it
- The manifold gets oily, car burns oil, results in the smoke/soot from exhaust and obviously drinking oil
- Fix this by fitting a catch can/breather can to condense the oil vapors...
Results in improved performance (Overnight oil from the intake manifold settles in at the bottom, gets "sucked" into intake a some point or when car is turned on) and less/no more oil drinking.
Having spoken to another tuner, they've mentioned that they havn't done or heard of this before, and they even have a CLK63 as a track car.
So, anyone got experience/feedback/information on installing a catch can on a C63. Yay or Nay?
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08-24-2010, 05:16 PM
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2012 C63;1971 280SE 3.5(Sold);2023 EQS 450 SUV 4 Matic (Wife's)
Thanks for the information. This is not a must do mod on an NA motor but not a bad mod to do either. A build up of oil inside the intake is not ideal and can lead to some problems and perhaps even a little knock if bad enough. This is a more necessary mod with FI when rings wear and blow by increases causing even more oil to be pushed into the intake.
My Chev 6.0L truck has been turbocharged for 5 years and 54000km and it still gets by fine without a catch can. As long as the rings are sealing well it is not too much of a problem.
As Boost Gomez says these engines seem to seal up pretty well after 10000 miles or so when the rings are fully seated.
I don't think there is too much of a performance advantage to adding a catch can to the PCV system if your engine is in good shape otherwise.
My Chev 6.0L truck has been turbocharged for 5 years and 54000km and it still gets by fine without a catch can. As long as the rings are sealing well it is not too much of a problem.
As Boost Gomez says these engines seem to seal up pretty well after 10000 miles or so when the rings are fully seated.
I don't think there is too much of a performance advantage to adding a catch can to the PCV system if your engine is in good shape otherwise.
