Some routine service actions such as changing the engine unit oil may seem evident and important, while others such as changing the gearbox oil from its Lexus GX may seem less natural. Nevertheless, make no mistake, changing the gearbox is just as necessary as changing the engine unit oil. This content will show you the role of the gearbox oil, then, why it is essential to change the gearbox of your Lexus GX, and at last, how to change the gearbox oil of a Lexus GX .

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Role of gearbox oil on a Lexus GX

So we start our content with the role of gearbox oil on a Lexus GX. The objective of this short introduction is to make you understand the interest of this fluid which guarantees the good functioning of your car. The gearbox of your car has the objective to demultiply the power transferred by the engine unit and send it back to your wheels . It is made 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 operate with the help of an axle and a differential. All these parts will need to be firmly lubricate to objective accurately, limit friction and tolerate the high temperatures built by the engine unit and friction. Your transmission oil has a high viscosity and will prevent the formation of filings or gear breakage, so it is essential to the proper working of the gearbox.

Why changing the gearbox oil from a Lexus GX?

Now we’ll discover what’s the point of draining the gearbox oil of your Lexus GX?

Interest of gearbox oil changing Lexus GX

There are some interests to change the gearbox of your car frequently, we will list them and outline them below:

  • Over time, the oil will lose its viscosity because of friction and temperature rise, which will lead to less lubrication of the gears and pinions and therefore risk to break some of them.
  • Same as viscosity, time and temperature rise will decrease the oil resistance to the engine unit 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 always have a quality oil, a gearbox is an element that wears out and creates 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 change on a Lexus GX?

If you want to do an automatic or manual gearbox oil change on Lexus GX or strong> the process is not the same, however, dealers do not give mileage suggestions to change the oil in your gearbox, however when you do an intervention on the gearbox it is advisable to change it, otherwise here are the causes to make you take into consideration doing this oil change.

Oil change for manual gearbox Lexus GX

  • Gears are jumping: you are most likely missing oil and you may have a gearbox oil leak, please discover our article on gearbox leaks on Lexus GX for more information.
  • The gearbox cracks when you change gears: The oil has undoubtedly lost viscosity and is too fluid, so the gears get stuck.
  • Difficulty to shift gears: Same issue as just before, the oil is most certainly too fluid.

Automatic gearbox oil change

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

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How to change gearbox oil of a Lexus GX?

Finally, to finish this article, we will show you you how to empty the gearbox oil of your Lexus GX , it’s less difficult than you might presume, here are the few steps to follow to do it accurately:

  • Heat your Lexus GX 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 likely 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 recommended dose

If you wish more guides on the Lexus GX, go to our Lexus GX category.