Thanks for sharing John Cadogan’s videos. My mechanic went to the same auto school (well, kindred spirits).
One of John Cadogan’s videos put me onto data on the VW emissions scam and the scandalous statistics on impacts. Correct operation of emission controls (inexplicably there are better standards in Europe than here in Australia) matters to everyone’s health, and correct servicing must thus be important.
Increased air pollution due to VW’s reduced emission controls has led to many premature deaths. This would be the tip of the health impacts iceberg with many strokes, heart attacks, cardiovascular disease and asthma, lung cancer, brain and organ impacts just causing lots of misery and massive health costs.
From the article abstract:
In September 2015, the Volkswagen Group (VW) admitted the use of ‘defeat devices’ designed to lower emissions measured during VW vehicle testing for regulatory purposes. Globally, 11 million cars sold between 2008 and 2015 are affected, including about 2.6 million in Germany… Integrated over the sales period (2008–2015), we estimate median mortality impacts from VW excess emissions in Germany to be 1200 premature deaths in Europe, corresponding to 13,000 life-years lost and 1.9 billion EUR in costs associated with life-years lost. Approximately 60% of mortality costs occur outside Germany. For the current fleet, we estimate that if on-road emissions for all affected VW vehicles in Germany are reduced to the applicable European emission standard by the end of 2017, this would avert 29 000 life-years lost and 4.1 billion 2015 EUR in health costs (median estimates) relative to a counterfactual case with no recall.
Chossiere, Guillaume & Malina, Robert & Ashok, Akshay & Dedoussi, Irene & Eastham, Sebastian & Speth, Raymond & R H Barrett, Steven. (2017). Public health impacts of excess NO x emissions from Volkswagen diesel passenger vehicles in Germany. Environmental Research Letters. 12. 034014. 10.1088/1748-9326/aa5987.