Oil consumption
01-27-2008, 12:36 PM
#1
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Oil consumption
I’ve noticed my car is using about 1qt. of oil every 1000 miles. I do drive it hard, but I don’t know when I really am having a problem with consumption. The motor is built 408 low comp with about 10k on it. Any advice here would be appreciated.
02-04-2008, 12:44 PM
#5
Race Director
It it blow by in the manifold or is it blowing by the rings.
If it is blowing by the rings then it's a problem. Have you done a leak down test on your cylinders ?
If it is blowing by the rings then it's a problem. Have you done a leak down test on your cylinders ?
02-08-2008, 07:17 PM
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02-08-2008, 09:53 PM
#7
Race Director
Hope it isn't anything major. That's a real nice turbo system you have. 
02-09-2008, 05:55 PM
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St. Jude Donor '13-'14-'15
An LS1 has a horrible PCV system-That's why many people including myself have changed to a LS6 PCV valley and addded a catch can assembly--Take the T-Body off and look inside the intake manifold--You'll be shocked at the amount of oil in the manifold--chances are if your manifold is shiny and oily --the consumption is coming from there--
If it's coming past the rings or vave guide seals is a whole other story--Chances are that when your motor was re-bulit to a 408 all that stuff was replaced with new parts and should be OK--
Pull out a spark plug and look down into it with a magnifying glass and a light----down deep inside where the porcelain meets the metal andsee if there is any oil residue--usually a dark bubbly ring---This indicates oil getting into the combustion chambers badly--
If it's coming past the rings or vave guide seals is a whole other story--Chances are that when your motor was re-bulit to a 408 all that stuff was replaced with new parts and should be OK--
Pull out a spark plug and look down into it with a magnifying glass and a light----down deep inside where the porcelain meets the metal andsee if there is any oil residue--usually a dark bubbly ring---This indicates oil getting into the combustion chambers badly--