i keep on changing my oil and it gets dirty a few hundred miles after. it gets like really black dirty i dont know y it is happening. anyone have any clue why please tell me if u do.

 

Good chance that it's caused by burnt gasses getting past the rings.
A leak down test will show if the rings are bad.

 

Mine still does it and the motor is new. Maybe 5k on the motor. I ran synthetic for awhile and im not positive it ever broke in.

My rings better not be bad. That would be stupid...brand new GM goodwrench engine.

 

What kind of oil do you use? I've heard Penzoil and maybe a few others supposedly work so well, that it will get dirty pretty quickly.

 

i normally use syentec blend but i mean it does it with any oils i use

 

Im hoping my rings just havent set yet. And if they have GM crate motors blow.

 

PCV valve!

 

make sure your pvc system is working. you might want to consdier sending a sample to be tested too, cost is around 30 dollars. you may find out you have good oil that looks dirty.

 

isnt it normal for a new motor to do that for a certain period of time?

Maybe I should get a new breather and PCV valve just to see if it helps any.

 

And just for a precaution, next time you change the filter, check to see if the bypass valve is still intact within your filter mounting pad. With the filter off, stick a screwdriver in the small hole just off the main filtered oil orifice (the main filtered oil orifice is the one that is threaded for your oil filter. The screwdriver should only go in about 3/8" before stopping at the bypass valve. If the screwdriver continues through the hole without stopping, you have lost your bypass valve. If the bypass valve has dislodged itself (rare but it happens), your oil will take the easiest path through your oil system and will choose the bypass not the oil filter. Unfiltered oil will circulate through your motor until a new filter mounting pad is installed. This happened to me. I immediately changed the oil after the cam broke in. Then again 500 miles later. The oil got dirty within a few hundred miles and within 4000 miles the motor was junk.

 

hmm I will check that. I had to use my stock oil filter adaptor. I will check what your talking about. What if it is that? How do you install a new one?

 

is the oil high detergant? i noticed my mobil drive clean formula got dirtier much quicker then my 10 30 mobil 1, both are high quality but the drive clean has more deturgants i believe.

 

Yes...and if you used synthetic for the breakin..it will take even longer for the rings to seat. Use dino juice for breakin then go with the good stuff...how many miles on the new motor?

 

It is held on by two bolts that you will easily see when you remove the filter.

 

Oil is gonna blacken real quick in anything. Odds are, its just doing what its supposed to do...nothing to worry about (assuming you broke it in right using dino oil, not synthetic, so everything seats properly). But if you expected it to keep that spring fresh look after even just a few hundred miles...nope...it won't. And it doesn't neccessarily mean anything is wrong.

 

Maybe sludge in your Oil Pan? I would pull the pan and inspect it. You might just have a little build up of slime, sludge and other things.

 

Everyone has his/her own favorite lubricant, but my take on Pennzoil and Quaker State is not that they work so well, but have so much polymer additive that they ash very quickly. Chances are that the oil is cleaning up your engine. Perhaps you should try a flush with ATF and/or change more frequently. Maybe you could change a filter between regular changes to help clean thing up.

 

i used penzolil (spelling?) in my car its been 400-500 miles and still looks pretty fresh

 

Well I used dino oil for the first 500miles. Well I changed to mobil 1 synthetic after that for 2 changes. Well It wasnt breaking in so I switched bad to dino. Been about 2500miles on dino again. Its getting dirty real fast still.

But I dont think my rings have set yet because I get alittle blue smoke like Im still getting blowby.

I know what the oil pickup looks like. I had to use the one off my 305 and put it on my 350. Next change ill check that. I think It just needs more breakin in tho.