When do i change my gearbox oil

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When you have decided you transmission fluid is ready for a change, you have two options to choose from on how to do this. The first one is by flushing out the old fluid. This is done by pumping in new fluid and thereby forcing out the old fluid.

The advantage of flushing is that flushes out all the debris and metal shavings that was gathered by the fluid. However, if your old transmission fluid is dark and burnt, it is better to drain it instead of flushing. This because flushing could cause the burnt fluid to get the valve body clogged up. When you want to change your transmission fluid by draining, the pan will be drained and the filter replaced. Some mechanics drain and fill a couple of times to minimize the leftovers in the system.

Pay attention! Your browser is outdated, this can have a negative effect on the user experience. In normal driving conditions, most cars can hit up to 80, miles before needing a gear oil change.

However, this number is a maximum, and most manufacturers recommend changing your gear oil between 50, and 60, miles. Other conditions that require a gear oil change can develop under unusual circumstances.

For example, if your transfer case, differential component, or transmission has experienced submersion in water or another foreign fluid, your gear oil should be replaced. Contaminated oil can seriously damage your gearbox, transfer case, or differentials with inadequate lubrication.

You should also replace your gear oil if your transfer case or differentials recently had a leak repaired.