Some maintenance actions such as changing the engine oil may seem evident and very important, while others such as changing the gearbox oil from its Kia Niro may seem to be less automatic. However, make no mistake, changing the gearbox is just as essential as changing the engine oil. This guideline will explain the function of the gearbox oil, then, why it is essential to replace the gearbox of your Kia Niro, and at last, how to replace the gearbox oil of a Kia Niro .


Role of gearbox oil on a Kia Niro

So we start our guideline with the function of gearbox oil on a Kia Niro. The objective of this short introduction is to make you understand the interest of this fluid which guarantees the good performance of your car. The gearbox of your car has the mission to demultiply the power transferred by the engine and send it back to your wheels . It is done up of pinions and gears that will allow the wheels to rotate at different speeds depending on the curves and the gear engaged. It will work with the help of an axle and a differential. All these parts will need to be strongly lubricate to objective correctly, limit friction and tolerate the high temperatures produced by the engine and friction. Your transmission oil has a high viscosity and will prevent the formation of filings or gear breakage, so it is fundamental to the proper performing of the gearbox.

Why changing the gearbox oil from a Kia Niro?

Now we’ll discover what’s the point of draining the gearbox oil of your Kia Niro?

Interest of gearbox oil changing Kia Niro

There are some interests to replace the gearbox of your car regularly, we will list them and detail them below:

  • As time passes, the oil will lose its viscosity because of friction and temperature rise, which will cause less lubrication of the gears and pinions and therefore risk to break some of them.
  • Same as viscosity, time and temperature rise will lower the oil resistance to the engine temperature, So it will fluidize much more easily when the engine heats up, which is not good for your gearbox.
  • Accumulation of metallic residues: Finally, even if you constantly have a quality oil, a gearbox is an component that wears out and produces iron filings with friction, the oil will pick them up and if it gathers up too much these residues can get into gears and break them.

When to do the gearbox oil replace on a Kia Niro?

Whether you want to do an automatic or manual gearbox oil change on Kia Niro or strong> the process is not similar, nevertheless, dealers do not give mileage recommendations to replace the oil in your gearbox, nevertheless when you do an intervention on the gearbox it is advisable to replace it, otherwise here are the reasons to make you think about doing this oil replace.

Oil replace for manual gearbox Kia Niro

  • Gears are jumping: you are most certainly missing oil and you may possibly have a gearbox oil leak, please discover our content on gearbox leaks on Kia Niro for more info.
  • The gearbox cracks when you switch gears: The oil has absolutely lost viscosity and is too fluid, so the gears get stuck.
  • Difficulty to shift gears: Same problem as just before, the oil is absolutely too fluid.

Automatic gearbox oil replace

  • A slow start from the neutral position to the first one: generally a viscosity problem.
  • Difficulty or even impossibility to shift gears: Lack of oil


How to replace gearbox oil of a Kia Niro?

At last, to end this content, we will explain you how to empty the gearbox oil of your Kia Niro , it’s less difficult than you might believe, here are the few steps to follow to do it correctly:

  • Heat your Kia Niro for about 10 minutes to get a fluid oil, place it flat on 4 stands.
  • Install a drain pan under the drain plug, open it, and clean it well because it will most certainly gather filings.
  • Let all the oil run out until it’s all gone.
  • Replace and tighten the cap, then fill with a syringe through the filler cap with the manufacturer’s suggested dose

If you wish more tutorials on the Kia Niro, go to our Kia Niro category.