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  • Dixie Dean
    Member Since: 11 Apr 2018
    Location: Merseyside
    Posts: 17
    United Kingdom 

    Caravanners and Trailer Towers - Changing Your Gearbox Oil

    Hi all. I'm a D3 owner who has had his D3 for 10 years and intends to keep it for a while yet.

    One big issue I have had with it is the gearbox oil. I tow a large caravan weighing in at 1.8 tonnes. I had to have the gearbox totally rebuilt last year because I failed to change the gearbox oil. General consensus from experts in the field is that if you tow heavy trailers at all regularly, the oil should be changed at 80K miles. If like me, virtually all your motoring is towing, consider changing your oil at 60K. That should ensure that unlike me, if you intend to keep your D5 for some time, or your buy one at around the above mileages, that the gearbox won't fail like mine at 120K. If the vehicle you intend to buy has not had its oil changed and has exceeded those mileages, consider another vehicle.

    (You should, of course, change the gearbox oil at the same subsequent mileage intervals)

    Hope this post is useful to any caravanners on here.
    11th Apr 2018 7:30 pm
  • Flat Earther
    Member Since: 15 Dec 2016
    Location: England
    Posts: 73
    United Kingdom 

    I’d suggest that 60,000 miles would be a sensible change interval before taking any significant towing into account!
    11th Apr 2018 8:04 pm
  • Dixie Dean
    Member Since: 11 Apr 2018
    Location: Merseyside
    Posts: 17
    United Kingdom 

    I'm sure it wouldn't hurt
    13th Apr 2018 9:09 am
  • Sodbury D5
    Member Since: 12 Dec 2017
    Location: Bath
    Posts: 17
    United Kingdom 

    I changed the gearbox oil in my D3 at 70,000 miles, was bloody expensive but made the grearbox feel like new. Cant believe they say its sealed for life that’s BS.

    Al,ways worth changing at a lower interval and will prevent failures later down the line, plus keep the car driving well too.
    14th Apr 2018 8:58 am
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