Oil useage

Worth a read if you are concerned about oil consumption
http://workshop-manuals.com/bmw/z_series_e85/z4_2.5i_m54_roadst/1_service_information/0__maintenance_and_general_data/2_si__arguments_concerning_engine_oil_consumption_bmw_mini/
(next page available far bottom right of each page)
 
I wasn't over concerned with the oil consumption but had a read anyway.

The main two things I note are:

  • For BMW spark-ignition and diesel engines, the maximum permissible engine oil consumption is 0.7 l/1000
    km. (Because of their increased power output and torque, M engines have a maximum permissible oil
    consumption of 1.5 l/1000 km).
  • (Reading the dipstick) the difference between the two marks corresponds to about 1.0 - 1.5 litres.

For reference 1000km is about 620miles.

Every car is different and will have to be monitored so you know how frequently you need to top up. Also dependant on driving styles and ratios. i.e. short journey v. long journeys. So it's good to know it's "normal" to have some extent of oil consumption.
 
Just did a 1L top up tonight on my 57 plate 2.5si, now at 62k milage. It has done 3306 miles since the last one. Previous 1L top ups without being interrupted by oil changes were March 2018 (4039 miles) and November 2016 (4947 miles) so oil usage is increasing so it would seem as the routine manner of my life remains the same............
Hope this helps,
Robert.
 
Roberltd2 said:
Just did a 1L top up tonight on my 57 plate 2.5si, now at 62k milage. It has done 3306 miles since the last one. Previous 1L top ups without being interrupted by oil changes were March 2018 (4039 miles) and November 2016 (4947 miles) so oil usage is increasing so it would seem as the routine manner of my life remains the same............
Hope this helps,
Robert.
Click to expand...

Which oil?
 
When I bought this Z4 it required a service as it had been a while since the last one although still within the time interval the car was showing.

About 1 month before it was serviced it wanted 1L of oil as it said it was running low.

As I change the oil every year no matter the mileage / time / recommended time I've not had any further issues with the car needing more oil.

I only put Millers Nanodrive in mine with either Mann or Mahle filter usually from Opie Oils.

Which oil? Which filter? How much oil is being put in the car?
 
Forgot all about this thread. Some oil consumption is normal... wouldn’t worry too much about quantity, so long as you’re keeping on top of it.
 
Roberltd2 said:
Hi Martin,
The oil I use is Petronas Syntium 5000 XS
Robert.
Click to expand...
Thanks. It must be 5W30 ?
I had Shell/BMW twin power turbo 5W30 in my 2,5si, and it used 0,5-0,75 liter per 1000km.
Now i use Castrol Magnatec 5W40, and after 1000km i cannot see any consumption.
Both C3 LL4.
I will stick with Castrol.
/Martin
 
If your engine isn't using oil or as some have found the level fluctuates or even rises above max, this piece by Total explains why fuel dilution in to oil could be the explanation and is on the rise. This presumably is why levels can drop dramatically after a 'hot' run as fuel and moisture evaporate out from the oil. For me it hammers home the importance of regular oil changes and good fuel.
https://www.lubricants.total.com/fuel-dilution-engine-oil-causes-and-effects
 
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