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Oil Consumption

Old Jan 6, 2005 | 09:40 AM
  #11  
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I keep one or two quarts in the trunk, but I keep it in the spare tire well and I keep it in a bag. That way at least if there is a small leak the bag will help out some.
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Old Jan 6, 2005 | 07:07 PM
  #12  
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Yeah, I had quart "magically" open in my trunk too. It had never been opened, and the lid was on normally. It basicly ruined the floor of my trunk.
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Old Mar 7, 2005 | 09:28 PM
  #13  
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98preludesh: what hose? the pvc/breather hose? If so that has nothing to do with the oil system - thats emmisions.

please enlighten us.
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Old Mar 8, 2005 | 07:49 PM
  #14  
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The hose that goes from the valve cover to the Intake, pop your hood and check it out.
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Old Mar 8, 2005 | 08:37 PM
  #15  
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yep its always common for preludes to burn oil when you drive in VTEC often
my old 98 burned through a qrt every 3000 miles
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Old Mar 8, 2005 | 10:57 PM
  #16  
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Originally Posted by prelude97
98preludesh: what hose? the pvc/breather hose? If so that has nothing to do with the oil system - thats emmisions.

please enlighten us.
It does have to do with oil. The vapor from the oil being spun around in the crankcase is vented out through here and burned in the intake manifold. The hose he is talking about is the one connected to the valve cover that runs to the intake pipe. It sucks oil into the hose, through the valve cover and out through the PCV hose to be burned in the intake manifold. So it goes in a complete cycle through the engine to make sure stale oil vapors are cleansed from the system to avoid contamination and excessive pressure. Get a catch can and you will see the nasty oil vapor being shot through that hose after just a quick drive around the block.
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Old Mar 9, 2005 | 05:31 PM
  #17  
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Originally Posted by Shmoo
It does have to do with oil. The vapor from the oil being spun around in the crankcase is vented out through here and burned in the intake manifold.
As a side effect it picks up small amounts of oil, this is not the intended purpose. Not to mention all cars have pcv valves, it is not a vtec/honda thing. Per http://www.leeric.lsu.edu/bgbb/7/ecep/auto/n/n.htm states:

P.C.V. Valve
Emissions controls were first installed on passenger cars and light trucks in 1962. This first emission control, the P.C.V. valve, is still used on present production vehicles. The acronym P.C.V. stands for Positive Crankcase Ventilation. The valve of this system regulates the flow rate of crankcase blow-by gases into the intake manifold, thus burning these gases again. These gases contain large quantities of unburned hydro-carbons and some carbon monoxide. Flow rate through the valve is inverse to intake manifold vacuum. The higher the vacuum (i.e., at idle and low cruise speeds) the lower the flow rate. At wide open throttle when crankcase blow-by pressure is greatest the P.C.V. flows at the maximum rate (See Figures 1, 1a, 1b, and 1c ). A malfunctioning P.C.V. may result in a hard starting engine, surge at cruise, and hesitation on acceleration. P.C.V. malfunctions lower fuel economy since it is a vacuum device
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