What does it meen when idle is intermitedly surging 10-20rpm slightly probly half the time once warm

and when u pull dipstick at idle the engine starts to run rough?

On a n62

I will pull my ccv diaphrams this weekend, it has been -5'C the last 2 weeks

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04 black on sapphire 4.8is personally put 90,000kms
fully loaded minus the fold out trunk floor
-20' DUB X10 3 piece rims staggered setup
-LED angel eyes + interior lights + e70 style shifter
-AFE stage 2 intake system
-x-pipe/resonator delete
-UV coat windshield
-rebuilt Pano roof
-dynavin N6
-all front and rear end suspension parts and both front cv shafts replaced
-OEM hitch

And 2007 GSXR750