Better Sound Insulation

Better Sound Insulation with Peugeot HDi


 
Better Sound Insulation

One of the concerns many people have about diesel engines is the extra noise they can make. Thanks to the hi-tech common rail direct injection system, Peugeot HDi engines use a ‘pilot injection’ system, which injects a small amount of extremely fine diesel fuel into the combustion chamber before the main quantity of fuel is delivered each cycle. With this steady, regulated delivery of the fuel, mechanical vibration and chassis shudder is reduced, meaning significantly less noise than a traditional diesel engine.