Does your drive box oil come out looking like this ?

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does your oil come out like this ?

this is oil with maybe 10% water in it . Probably caused by lots of short journeys , where the drive box doesn’t get hot enough to make the water evaporate off .
solution , change you oil more frequently , open out the hole in the vent at the breather .

When you change it , try and do it hot , just after a ride is best , leave it to drain , overnight if you can .

Then refill to the correct level .

You may need to do this twice in quick succession , to get all the affected oil out.

Your drive box is an expensive bit of engineering , oil changes are very cheap by comparison .

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2 thoughts on “Does your drive box oil come out looking like this ?

  1. Thanks for those tips. I have in the past changed my engine oil when it was warm. Now I know to do the same with the drive shaft and gearbox. Thanks again

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  2. Thanks for the advice. Mine did look like that last time and the breather seems to get blocked easily. I use the Breva for a 17 mile each way commute. Not during gritting though. How often should I be changing the bevel box oil?

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