Hi
I towed 20 foot van ATM about 2900kg with my 2006 WH 3.0 CRD
Depending on how much towing, I emptied the catch can once sometimes twice between services,?
I now tow the same van behind 79 series, it has a catch can as well and its about the same oil consumption? Noticeably more when towing on both vehicles.
Hope that helps?
Happy Trails
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