'Upsizing' of engine displacement is the way forward
'Upsizing' of engine displacement is the way forward
Reuters has just published a report saying automakers will be reversing the recent downsizing trends for both petrol and diesels engines as the small engines have trouble passing real-world emissions test.
While the turbocharged small engine capacity provided decent power for everyday driving, it is said that small petrol engines 'spew fine particles and carbon monoxide' and that the heat generated by small turbodiesels result in NOx readings over 15 times the legal limit. Renault's 0.9-litre engine was found to inject excess fuel in an effort to stop overheating which would leading to high emissions 'of unburned hydrocarbons, fine particles and carbon monoxide'.
Brands which are going towards the 'upsizing' route include Volkswagen, Renault and General Motors. Analysts say that moving forward, strict new emissions tests will kill petrol engines below 1.2-litre and diesels that displace less than 1.5-litre.
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