Oil Consumption Mystery
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So my car has been burning oil for the past 30k miles, i put in 1.5qts every 2 weeks. Had a compression leakdown test done yesterday and compression was 150 across all 6 cylinders. There is no visible oil leak. Car has a slightly rough idle, was worse before the spark plugs were changed. Car blows out light gray smoke during city driving. Im wondering what else could be causing the OC and smoking? Valve covers/gasket were replaced by Infiniti about 25k miles ago, did not help the OC problem.
Mods are: ztube/popcharger, 5/16 spacer, aam hfc, FI cat back exhaust, Osirus Tune.
BTW car was denied a longblock by Infiniti due to pop charger and cat back exhaust, 2 yrs ago
Mods are: ztube/popcharger, 5/16 spacer, aam hfc, FI cat back exhaust, Osirus Tune.
BTW car was denied a longblock by Infiniti due to pop charger and cat back exhaust, 2 yrs ago
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^ Compression ratio on pistons has nothing to do with oil consumption or making this engine run better. Stock piston ratio would be fine.
You need a leak down test. That will tell you how much is getting past the rings.
You need a leak down test. That will tell you how much is getting past the rings.
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Wait a minute.....you have been having oil issues since 2009?
Looks like you have already had tons of info thrown at you. You just have to get it taken care of.
https://my350z.com/forum/na-builds/4...ing-motor.html
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https://my350z.com/forum/na-builds/4...ing-motor.html
Last edited by Lee R; 05-06-2012 at 09:27 PM.
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That sounds about right + or -.
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