Why do some manufacturers specify manual gearbox oil changes, while other manufacturers say theirs are 'filled for life'?
They all contain similar oils (such as GL5), is it to do with the actual gear materials, or some manufacturers simply see it as preventative maintenance?
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Or perhaps it's more to do with the definition of 'life'. Or more likely it's the cost of ownership. Anything that can be deleted from the service schedules in the first 100k particularly reduces the service cost of the car and improves the cars attractiveness to the fleet buyer/manager.
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it would put ceratin people off if it said change gear oil every 2 years
i ceratainly like to change mine...with a change to synthectic theres always a nice improovement
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They are filled for life but the life would be longer if they weren't.
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