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internal88
internal88, Auto Mechanic
Category: Kia
Satisfied Customers: 2488
Experience:  Import car specialist for over 10 years.
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2013 kia rio 5 door - 94000km -I change the oil every 4000

Customer Question

2013 kia rio 5 door - 94000km -I change the oil every 4000 km and am getting black oil. it seems deluted . what could be the cause
Submitted: 4 months ago.
Category: Kia
Expert:  Randall C replied 4 months ago.

Hello, sorry for the delay. what brand and type of oil do you use? what type of filter? just gathering information, thanks

Customer: replied 4 months ago.
10W30 and kia type oil filter
Expert:  Randall C replied 4 months ago.

brand?

Customer: replied 4 months ago.
correction : oil is shell 5w20 and filter is car quest premium
Expert:  internal88 replied 4 months ago.

This is normal for the GDI GasolineDirect injection system on the newer car.

Gasoline Direct Injection engines are considered an important source of carbonaceous nanoparticles; they produce higher levels of soot as the process of fuel vaporisation and gas-phase mixing remains essentially incomplete. The soot is mixed with the clean oil therefore you are seeing black color oil.

This is perfectly normal.

Please rate me positive, thank you!