Save fuel, protect th e environment126Overrunz The fuel supp ly is automa tic ally shut-offduring ov errun, e. g. when the vehicle isbeing driven down long gradients orduring b ra king - see page 123.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 a consta nt speed.Driv e in top g ear as m uch a s p ossible,shift up as soon as possib le and do notshift down prematurely.High speedz The faster the speed, the higher the fuelconsumption 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 releasing the accelerator pedalresults in distinct fuel sa ving s w ith nomajor loss of speed.Driv e at no m ore than around threequa rters of m aximum speed and y ou 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, heated rear window)when they are no longer required.Roof racks 3z Roof racks can increasefuel consumption by ap prox .3.5 gal./1000 miles (1 l/100 km) d ue to airresistanc e.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 ignoranc e, 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.