How to Check Oil correctly

Think ideally is to check when it is cold to get the best result for the oil level coz it is where the oil has really fully rested.

If you need to check the engine when warm ( assuming u hv just driven the car ) then ensure you let the car engine cool off for awhile say prob 10mins or so and then you can do the oil check.

IMO, both ways are the same and good.
Never do it when when engine is v hot or it has just been turned off.
 
erm jack,

actually for E46, at least for the non-M cars, best is to check when the engine is at optimum temperature. Meaning the engine has been running around for 5-10 mins, and has at least reached 100deg, or temp needle at the needle.

switch off the engine and check dipstick. if it's already in between the 2 marks, even if it's closer to the lower than the higher, dont fill up. only fill up if the level drops beyond low.

There are several different ways of checking oil level, for different makes of cars. some recommend cold, some recommend optimum temp, some recommend when the engine is still running (!!! yes, i'm serious)

best is to check our manual. for bmw, it's written inside. maybe we can bookmark this thread coz this qn has been asked quite a few times.
 
Just had my car serviced yesterday and was told by my CSA that I only need to top up the oil when the lights come on on my dashboard.......? :thinking:
 
yes thats what our sensors are for....... unless sensors koyak. hahahah Generally, lady drivers like BMW coz you dont have to open bonnet for 25000km at all unless you want to top up wiper water.
 
i'm not sure. it depends on how you drive. some car manuals do state how much oil is eaten by the engine, eg 0.5L/1000km. i've not read the BMW one in detail to see if it contains any oil-eating stats, but i believe normal city driving can see you through the entire 25000km service interval.
 
Oil comsumption if different across the range of the e46s...
have even seen M3s need to top up 1 bottle of oil for every 20k km...
 

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