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[quote user="Paul Milenkovic"]European standards are lower? This means less strict, yes, because the EPA standards in question are indeed more strict. And that the people in Europe would like to have the standards yet less strict and strictly enforced that way?[/quote] Sorry that I was not able to express myself more clearly. Our car standards (not trucks) are less strict. If they stay this way we would like to have these standards enforced to the last detail. This isn't happening currently as the VW scandal and following measurements have shown. I would prefer to have the stricter EPA car rules as ours seem to neglect NOx and associated health issues. I don't have detailed knowledge of fuel economy. Searching for information I found the Volvo statement. I posted it here as it was contradicting the information discussed here. I hoped someone with knowledge might comment it. [quote user="Paul Milenkovic"]Then you say that a 30 percent loss in fuel economy, were it true, would be no big deal because it is equally applied, but that people in Germany take climate change more seriously than in the U.S.. [/quote] Shadow complained about the loss of fuel economy because of EPA regulations. My opinion was that I don't see a competetive disadvantage as all trucking companies are equally affected. I learned that up-front costs might ruin a company before they get the money from their customers. In Germany the goverment offered interest-free loans to avoid this situation. I said that here in Germany it is general understanding that there is a climate change and a not insignificant part of it is man made.   These two statements were independent from each other to different statements from others. The Euro VI truck regulations are quite close to EPA Tier 4. I posted them a few days ago. A independent test organisation has tested Mercedes trucks from 1996 (Euro II), 2003 (Euro III), and 2016 (Euro VI) over about 1000 miles. The Euro VI Mercedes Actros had a 22% better fuel efficiency than 1996 model of equal horsepower. The difference between Actros Euro V and Euro VI (both 2,200 Nm) was about 4% better for Euro 6. I know it is just one manufacturer. Over the years the engine technology advanced and led to better fuel economy. It didn't lead to the expected CO2 savings as we bought more powerful cars. It seems the emission control disadvantages were compensated by better engine technology. When Europe started the regulations the emphasis was on CO2 emissions. Because of the conflicting aims CO2, NOx, and PM the two latter fell back. Euro VI is still a bit more CO2 oriented. But measures in the last month have shown that car exhausts are twice as polluting as truck exhausts, different horsepowers not considered. I think someone else pointed out that CARB and then EPA were more NOx and PM oriented because of the smog problems. The remaining question you have to answer yourself. Regards, Volker   <div class="quote-content"> </div>
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