i think Is really difficult to read the optra/Nubira oil dipstick, for oil
checking level (i think dipstick is inaccurate), normally in service
manual, is write that you check engine oil level when engine is warm
after 15 minuts stop. When i check the oil level (always in the some
parking place), after 15 minutes, one day the oil level is in full
position, i check the following day and oil level is betwen MIN and FULL,
i check still the following day and is still in full position!
I also noticed that when you put the oil dipstick for checking oil ( MIn
and FUll mark towards engine block) and when you put the oil dipstick
(MIN and FULL mark towards radiator) the oil level on the dipstick is not
the same!! For example if your oil level in the dipstick is on FULL
(towards radiator), is between MIn and FUll (towards engine block)!!
