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In Reply to: Oil Consumption posted by RANDY on April 29, 2001 at 17:53:41:
I too am experiencing excessive oil consumption. I have already replaced the PCV/Check valves. No luck. The TIS mentions vacuum leaks as a possible cause of oil consumption. I have checked with a vacuum gage, and all seems well. Mine does not appear to burn oil except when under full throttle and transmission upshifts. Other than that, it appears the cat converters work very well. (at burning oil) The gas vapor system also has vacuum applied to it, I am wondering at this point if perhaps the vacuum is escaping through there. My engine definitely does not have any vacuum in the crankcase, as it should, if the system were intact. Hope this provides some insight.
Andrew
Kurt:
As you and I have spoken before, I had my oil changed a week ago since this last Friday. I went about 650 miles and the monitor said to check the engine oil level. One quart of 20w-50 was added today and that puts me about half way between the two lines on the dipstick. Once again, the engine runs great, there is no smoke; however, I tend to go 80-100mph on the highway w/o thinking about it. Kurt, even if there is excessive valve clearance, or worn valve guides, do I realistically need to either rebuild the engine, trade it in, or could I simply add oil and change the plugs more often if necessary and simply go about my business without hurting anything? There is no smoke and no funny noises.
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