640if13 oil burning

[hart07]

Hello everybody on my Bmw 640i I had to add oil I mean 0,1 gallon in January
Before I never add some oil, I just change my oil when I have to do the service oil change

Now we are in end of April and I have an indicator oil at the minimum level
So I add 0,18 gallon of oil
I put bmw twin power turbo 5w30

Its normal or not?
My car has 138000 kms and first registration from 08/2012
Regards

[bravo261]

my 650 takes 2 litres of oil every 6000km, and i know that isn't normal. your car does not sound too bad, but if its asking for oil when it used to never ask for oil, it must be leaking or burning somewhere

[Angry Ketchup]

Originally Posted by bravo261

my 650 takes 2 litres of oil every 6000km, and i know that isn't normal. your car does not sound too bad, but if its asking for oil when it used to never ask for oil, it must be leaking or burning somewhere

BMW might actually call that normal. I can't remember exactly, but I thought something (absurd) like 2.5L/3000mi was still in-spec.


I top-off my 650i about every 1500mi with a litre of lube.

[hart07]

You think it's normal for my car?
I add 0,7litre yesterday and now the oil level is max so no problem
But you think I got a leak or something is burning or its quiet normal?
Regards

[hart07]

You know if there is a oil separator in the n55 engines mounted on the f13 640i?

[drmlee]

Originally Posted by bravo261

my 650 takes 2 litres of oil every 6000km, and i know that isn't normal. your car does not sound too bad, but if its asking for oil when it used to never ask for oil, it must be leaking or burning somewhere

i have to always fill 2 quarts in mine also, somewhere after 4000-5000 miles the light will always come on asking to add 2 qts. i think its "normal" for the n63/tu engines.

[Alan Surrey]

Hi guys. I have only just joined the group. I have an 2008 M6 convertible and my car seems to use quite a lot of oil, it’s this a normal thing ?

[Angry Ketchup]

Originally Posted by Alan Surrey

Hi guys. I have only just joined the group. I have an 2008 M6 convertible and my car seems to use quite a lot of oil, it’s this a normal thing ?

Probably. How much does it burn?

[hart07]

Today I got oil minimum level warning
The car has 142600kms now
Is it normal the last time I got this message it was in April with 138000kms

[hart07]

I add just 200ml oil but the system oil diagnodtic ask me 1 liter.
Is it normal?
What's your experience with the n55 engine twin turbo 3,0l
Regards

[hart07]

Now with
162000 kms I got the message need to add some oil
Recently I changed the gasket oil filter housing.

[iamvanja]

Oil burning issues are associated with the V8, not the I6.
Definitely not normal.

[hart07]

My car is running well don't know what's going on.
I just changed the oil filter housing gasket cause little leak but it's a common issue on the 6 series.

[hart07]

You have idea for oil consumption?
I got no smoke color in the exhaust tip
I mean no blue color or black smoke in the exhaust
My car is running fine no problem but I have to add oil
I have just to change the gasket oil filter housing in February

[hart07]

History I bought the car in 2016 at 117000 kms
It's a bmw 640i f13 from August 2012

At 138640kms in 2018 I add 0,7 liter oil 5w30 bmw twin power turbo in February 2018.

On September 2018 the car got 142600 kms I add
0,5 liter 5w30 bmw twin power turbo

March 2019 I add 1 liter oil 5w30 bmw twin power turbo

November 2019 the car got 156000kms I add 0,5liter 5w30 helix shell


December 2019 the car got 157880 kms I add 0,4liter shell helix 5w30

February 2020 I change the gasket oil filter housing cause I see some oil on it. (it was a leak)

End of March 2020 the car got 162200kms I add 0,4liter shell helix 5w40

12th June 2020 the car got 163368kms I add 0,5liter oil shell helix 5w40

I use mainly this car for downtown
I got no problem on the car
No colored smoke on the exhaust

Why this bmw n55 eat oil?

Thks

[hart07]

Any help or advices
Thks

[hart07]

I have heard that ccv or pcv was guilty in some cases.
Or gasket cover.
But I see no leak on the floor.
What I have to do to research a leak eventually?
Where are the locations to see if there is a leak?

[hart07]

I think it's not pcv valve cause I got no noise

[Thewrench86]

I'm sure its quite a frustrating situation trying to figure it out. If u can't see any oil its either being burnt or it is dripping on a very hot part thats burning it off. Due to the cover under car unless its a catastrophic leak u dont usually see anything on the floor of ur drive etc. Possibly take it to a reputable mechanic that can do further testing for you. Good luck.

[hart07]

But ccv and pcv how to see its the problem or not?

[hart07]

I use my car mainly for city perhaps it's the reason why I burn oil

[hart07]

Perhaps the gasket oil drain under the car
I did the 2 last oil change by myself (in February 2017 and June 2019) perhaps I tighten the bolt too much.or perhaps the oil drain gasket is broken or damaged, don't know
But how to see a leak under the car with the round plastic cover to access the oil drain plug?