Ok thats nice it means you have just purchased it and its your routine to replenish engine oil after every 3000kms. Now carefully follow this:
- immediately at earliest put oil 10W-40.
- Monitor it by checking the dipstick after 1st 500kms and then every 1000kms till oil change at 3000/3500kms. (If you won't need any considerable top up oil i.e. greater than 500ml then proceed to step 3.)
- Now put 10W-30 monitor the same for 3500kms, if the conditions remain satisfactory you can continue with 10/30 eyes closed as your car will be on OEM spec lube oil.
Note:
1. Every engine in the Auto world consumes oil (some times its negligible not detected on the dipstick) even some manufacturers mentions in manuals that generally a 4L oil capacity engine can consume upto 1/2 liter of oil in 5000kms change interval depending on the driving conditions.
The car is at 190K kms and we don't know the previous history so switching to 5W-30 is tricky. Even 10W-30 withstand the cold whether -18C so continue with it.
For this engine R18A 5W-30 if used since 0 meter is the best even above this mileage but not applicable in your case.
