if its non-turbo then,
Fit a Turbo KIT in it & then you will get: MAX 12-16km/Litre Diesel but only
IF it is perfectly tuned engine with proper air intake system.
while the TURBO compress it becomes HOT, so to install Intercooler KIT is another addition to the system which is excellent idea, but only if you live a very HOT country; 50+ Degree Celsius, otherwise intercoolers are not necessary.
Use get best mileage use a SYNTHETIC oil accordingly to the temperature of your country/city.
10w50 is universal mostly!
but if your country is not so HOT, use 10w40
if your country is cold and goes below -10, use 5w30
I get 25 - 28 mpg in mine.
They averaged around 25 mpg.
It depends on what model. But the 2016 model has an average of 25 mpg.
About 25-30mpg on average.
A 2011 BMW X3 is boasted to have a City MPG of 19 MPG and a Highway MPG of 25 MPG.
25 mpg
17 mpg city, and 25 mpg highway.
25 to 40mpg
What year is it and does it have an auto or 5 speed? Mine is a 1985 with 5 speed and I get 25 mpg.
I get 25/33 mpg
about 25 mpg
25 gallon. 13- 15 mpg