How can i screw up an oil change

[JoeMadoo]

I changed my oil and filter this morning (4.5 quarts). My engine runs alittle rough and when i opened the oil filler cap, there is some smoke coming out. And there are some bubbles on the dip stick.

How can i screw that up?

[nukeduster]

fumes comming out of the crank case fill up isnt unusual under any circumstances really if the motor is hot.

they spark realy easily though, be careful letting too much vent when the engine is running/hot.

what kind of oil you running on how many miles?

what kind previously?

[BMWJNKY]

I'm pretty sure your car takes more than 4.5 quarts with a filter change. My 325i takes 5 liters with a oil change with filter which is about 5 1/4 quarts. Did you change what weight oil you used from the last time you changed the oil?

[Rfitz25]

Hey Joe,

yeh, I think my i motor took 5.25 - 5.50 quarts with new filter.

Sounds like your short on oil.
But dont you have an eta, not sure what that takes.

If you leave the cap off (vacume leak) you u can get the smoke effect and rough running.

..though Ive never done that. LOL

check for vacume leaks maybe.

wonder if your oil pump is screwing up?

oil cooler?

good luck

what oil you using anyway ?
I'm using Castrol GTX 10W-40 (dino oil) for now.

[Numark318i]

Jus tchanged my oil. 5.4 quarts in a 4cyl. So im guessing ur 4.5 wasnt enough.

If u think its the oil then change it to Castorol GTX 10-40w..its what im using to...works wonders.

[gotKRAUT]

use mobil, castrol sucks, breaks down way faster than full synthetic Mobil..15w/50 extended performance...if its good enough for race cars its good enough for me

[JoeMadoo]

The bently said it takes 4.5 quarts with a filter change. But when i started it up the oil light was on, and it was barely at the low line on the dip stick. So i added another .75 quarts, and let it sit for a while. Initially the car wasnt hot btw. But the second time it worked fine, with no bubbles or smoke or anything. So i guess i fixed it

[bimmerguy82]

Originally Posted by gotKRAUT

use mobil, castrol sucks, breaks down way faster than full synthetic Mobil..15w/50 extended performance...if its good enough for race cars its good enough for me

+1, Hell Yes!

[91 325ix]

well reading this post I really think the guy at the autopart went overboard by telling me that this car holds 6.5 quarts of oil. BTW its a 91 325ix, I did the oil and filter change by myself and after pouring the 5th quart I took the stick out to see if it was true, well the stick looked like it could hold more, so I poured the 6.5 quarts on it. The car runs the same as before, no leaking, no hesitation, no smoke, so I think he wasn't so wrong.

what you guys think?