This product can be used for oil drainage & brake or clutch bleeding. It is also ideal for contaminated fuel. The product has a 12litre capacity & is complete with 4 adaptor tubes including one for brake & clutch bleeding. By the nature of the task the observation cap is considered consumable & is available as a replacement. When using Petrol it is always advisable to clean thoroughly after use to prolong the life of the cap. Suitable for all trades including Marine & Agricultural but especially for automotive use on Cars, Motorcycles, Trucks etc.