Half a quart of oil every thousand miles
#1
Half a quart of oil every thousand miles
120k on the truck, has new and properly functioning pcv also plenum is fixed. takes half a quart every thousand miles. 15 year old truck i dont expect it to be perfect but is this normal for our 5.9's? no leaks on the ground or anywhere on the motor. thinking just tired rings maybe?
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To fix a rear main seal u gotta seperate the trans and motor from each other. I never noticed any puddles just a few drops on on the front if the bell housing. What does the inside of your exhaust look like. If u rub your finger in the end of your exhaust does it come out all black?. Also check your radiator make sure it's not going there. Check your timing cover also for oil coming out there. Bad cam seals will leak out there
#7
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#8
My concern is that u don't know where it's goings. Its insettleing. Half a quart is kinda alot. A leaks I wouldn't worry about. As long as u check your oil. A plenum I'd get fixed. Blow by from bad rings I'd get fixed. If u can figure out where the oil is going then u can determine if it needs fixed or not. Oil just doesn't disappear. If it's 100% completely dry underneith then u need to look else where for a leak. Then determine if your compresson is good. Vaccume test compresson test then report back.
#9
#10
You can chalk a quart of oil every thousand miles as typical for a high mileage engine. I wouldn't really consider 120k high mileage. But half a quart is nothing to fret over.
Probably a combo of slightly leaking valve covers and valve seals. Valve seals get old from shear age. Especially if the truck sat for 5 years without moving a lot. As these old brutes are want to do.
As long as you got good power i wouldn't lose any sleep over it.
Probably a combo of slightly leaking valve covers and valve seals. Valve seals get old from shear age. Especially if the truck sat for 5 years without moving a lot. As these old brutes are want to do.
As long as you got good power i wouldn't lose any sleep over it.