On 10/03/2018 14:28, Dave Plowman (News) wrote:
In article ,
Fredxx wrote:
Very good, Sir Humphrey, in that case ban diesel cars from city centres?
Or impose a 60MPH speed limit for diesels on motorways. /Jim Hacker

OK, so clean air motorways.

Perhaps petrol cars should not be able to engage a gear until the cat
has warmed up too.

You'd live in a very odd place if you could access a motorway before the
cat. has heated up.

That's my point, for the school run etc, the exhaust will be emitting
the most pollution.

By the time you get to the motorway the exhaust will be at its cleanest.