Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

Why are new engine emission/mpg test figures very different when compared to existing engine emission/mpg test figures?

April 26, 2017different emission engine existing figures MPG Test

0

Posted

Why are new engine emission/mpg test figures very different when compared to existing engine emission/mpg test figures?

1 Answer

0

Posted

Emission and mpg test figures on new engines disimprove after approximately 3-months of the engine s working life due to the build-up of un-burnt carbon (CCDs). National car/truck tests (MOT, DOE, NCT, etc.) all confirm the increase in emissions. Authorities do not act on this readily available information when setting emission/mpg standards for existing vehicles. This practice must and can be changed immediately.