Service, maintenanc e206Additional servicingAdd itional op era tions ⊕Additional w ork is work tha t is not req uiredevery service but can be performed inconjunction with a regular service.Time allowances for such w ork are notincluded in the scope of regular servicesand will b e charged for add itionally. It ismore economic if these operations areperformed as part of a sc heduled servicethan having them performed separately.Severe op er ating cond itions oOperating conditions are classified assevere when one or more of the follow ingoc curs freq uently :z cold starts,z stop and go,z trailer/caravan towing,z gradients and/or high altitud es,z poor road surfa ces,z sand and dust,z extreme temperature fluctuations.Police vehic les, taxis and d riv ing schoolvehicles a re also classified as operatingunder severe c onditions.Under severe operating conditions, it m aybe necessary to have certain scheduledservice w ork done more frequently than thescheduled intervals.For ex ample, if fuel is used that does notcomply with req uired stand ards, the fuelfilter m ay need more freq uent draining orreplacem ent and it may also b e necessaryto change other components more often(e.g. spark plug s).It is recommend ed to seek tec hnical adviceon the servicing requirements dep endenton the specific operating cond itions of y ourvehicle.