> diesel maintenance vs petrol Diesel engines are more vulnerable when driven cold and on short distances (i.e.: typical european city usage). They do need per

> diesel maintenance vs petrol Diesel engines are more vulnerable when driven cold and on short distances (i.e.: typical european city usage). They do need periodic fine tuning, which is mandatory here in most european countries. If the engines has DEF, it has to be refilled and carefully maintained. If it hasn't, the filters also need care (again, most people overlook this). > fuel price diesel fuel is about 30% cheaper in Europe, where diesel accounts >50% sales in key countries (germany, spain; france 80% in 2008). Obviously not relevant in the US where diesel is basically non existent. Europe is the main diesel market in the world - worth spending some time there in a major diesel city to forge a definite opinion. > Paris Actually less cars in city center, and more in the overall urban area. NOx are contributor, so are Particle Matter PM-6 and PM-10, both byproducts of diesel engines in actual use (obviously far above euro6 norms). Up to 80% of PM in London come from diesel, according to UK government: http://www.telegraph.co.uk/motoring/green-motoring/10190942/Why-is-killer-diesel-still-poisoning-our-air.html http://www.telegraph.co.uk/motoring/green-motoring/10190942/... I get that your personal experience with diesel in the US is not bad. Like asbestos sounded great when it saved your family from fire. But really, don't use it.