Some maintenance actions such as changing the engine unit oil may seem obvious and very important, although others such as changing the gearbox oil from its Buick LaCrosse may appear to be less natural. However, make no mistake, changing the gearbox is just as necessary as changing the engine unit oil. This content page will describe the purpose of the gearbox oil, then, why it is important to replace the gearbox of your Buick LaCrosse, and at last, how to replace the gearbox oil of a Buick LaCrosse .

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Function of gearbox oil on a Buick LaCrosse

So we start our content page with the purpose of gearbox oil on a Buick LaCrosse. The objective of this short introduction is to make you understand the interest of this fluid which assures the good performing 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 work with the help of an axle and a differential. All these parts will need to be highly lubricate to objective properly, limit friction and tolerate the high temperatures generated 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 important to the proper performing of the gearbox.

Why replacing the gearbox oil from a Buick LaCrosse?

Now we’ll find out what’s the point of draining the gearbox oil of your Buick LaCrosse?

Benefit of gearbox oil changing Buick LaCrosse

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

  • Over time, the oil will lose its viscosity due to 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 lower 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 component that wears out and generates iron filings with friction, the oil will pick them up and if it builds up too much these residues can get into gears and break them.

When to do the gearbox oil replace on a Buick LaCrosse?

If you want to do an automatic or manual gearbox oil change on Buick LaCrosse or strong> the procedure is not the same, 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 wise to replace it, otherwise here are the reasons to make you take into consideration doing this oil replace.

Oil replace for manual gearbox Buick LaCrosse

  • Gears are jumping: you are almost certainly missing oil and you may have a gearbox oil leak, please find out our article on gearbox leaks on Buick LaCrosse for more information.
  • The gearbox cracks when you change 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 obviously too fluid.

Automatic gearbox oil replace

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

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How to replace gearbox oil of a Buick LaCrosse?

At last, to end this article, we will describe you how to empty the gearbox oil of your Buick LaCrosse , it’s less difficult than you might think, here are the few steps to follow to do it properly:

  • Heat your Buick LaCrosse 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 almost certainly gather filings.
  • Let all the oil run out until it’s all gone.
  • Change and tighten the cap, then fill with a syringe through the filler cap with the manufacturer’s recommended dose

If you wish more tutorials on the Buick LaCrosse, go to our Buick LaCrosse category.