Save fuel, protect th e environment98Overrunz The fuel supply is automatically shut offduring ov errun, e. g. when the vehicle isbeing driven down long gradients orduring b ra king - see page 96.z To enable the overrun cut-off to takeeffect and save fuel, do not accelerate ordeclutch.Correct gear selectionz High revs increase engine w ear and fuelconsumption.z Do not race your engine. Avoid d riv ing athigh engine speeds.Driv ing with an ey e on the tachom etersaves fuel. I f possib le, drive a t low rev s ineach gear and a t constant speed. Drivein top gear as much as possible, shift upas soon as possible and do not shiftdown prema turely.High speedz The faster the speed, the higher theconsumption and noise lev el. Driv ing atfull throttle uses up a g reat deal of fueland generates ex cessive noise a nd hig hemission levels.z Slightly relea sing the accelerator ped alresults in distinct fuel savings with nomajor loss of speed.Drive at no more tha n around threequarters of max imum speed and you willuse up to 50% less fuel, without losing agreat deal of time.Tyre inflation pressurez Inadequate ty re p ressure, leading tohigher road resistance, costs m oney intwo wa ys: for more fuel and increasedtyre wear.z Regular checks (every 14 d ays) pay off.Electrical loadsz The power consum ption of electricalequip ment increa ses fuel consumption.z Sw itch off all a dditional c onsumers (e. g.air conditioning 3, heated rearwindow 3 ) when they are no longerreq uired.Roof racksz Roof racks can increase fuelconsump tion by approx.3.5 gal /1000 miles (1litre /100 km) due toair resistance.z Remove them if they are not being used.Repair and maintenanc ez Improper repairs or adjustm ent andmaintenance work can increase fuelconsumption. Do not carry out w ork onthe eng ine yourself.You may out of ignorance infringeenvironmental law s b y not disposing ofmaterials properly.Appropriate parts m ight not be rec ycled .Contact with some of the materia lsinv olv ed may p ose a hea lth haz ard.z We recom mend that repairs andmaintenance be entrusted to a VauxhallAuthorised Repairer.Extreme drivin g conditionsz Driv ing up steep gradients, cornering,driving on poor roads, and winter drivingall increase fuel consumption.Fuel consumption increa ses dramaticallyin urba n tra ffic a nd at wintertemperatures, especially on short trip swhen the engine operating tempera tureis not reached.z Follow the hints given above to keepconsumption to a m inimum under suc hcond itions.