Comment Re:Those failing engines and transmissions. (Score 1) 231
The direct fuel injection does seem to cause more trouble than it's worth.
Low tension rings cause more trouble than their worth Low viscosity oil causes more trouble than it's worth Stop-start causes more trouble than it's worth Variable displacement causes more trouble than it's worth Integral dual volute turbocharging causes more trouble than it's worth And yes, direct injection causes more trouble than it's worth.
The extreme CAFE mileage requirements have driven manufacturers to make a large number of terrible engineering choices in ICE drive trains. Extreme CAFE mileage requirements have greatly contributed to the excessive cost of vehicles and the excessive cost of repairs.
Yep. CAFE-style regulation is the wrong way to attempt to reduce carbon emissions. The right way is to impose a carbon tax, then let consumers vote with their wallets and engineers work to make the right tradeoffs to meet customer demand. My guess is that consumers would choose to buy the more fuel-efficient vehicles and engineers might make the same tradeoffs... but now it would be clear that those tradeoffs are worthwhile.