Speed is an all-consuming issue

As a responsible member of the community, I simply cannot condone the use of violence to express contrary views on this subject, but I can fully understand why the victims of stupid speed restrictions react angrily to get rid of devices such as static speed cameras.
Here, I can recount the story of the destruction of two such cameras in the space of one week in the English county of Dorset. On a short stretch of straight road, 151 motorists were fined in a three day period, with 83 of them losing points on their licences.
On a Saturday night, someone, rather obviously a recent victim, torched the two Gatsos, which were totally destroyed. The ire of motorists is raised by the fact that the cameras are in-situ purely to raise funds for the local council and for no other reason. 
In their view, and experience tells me they are right, there are many more danger spots that warrant attention and they resent losing points for commiting the relatively harmless “crime” of travelling at 38 mph in a 30 mph zone.
Ironically, this destruction comes just as councillors in nearby Bourn-emouth are debating whether or not to scrap their fixed cameras. 
They have 20 of the wretched devices under their control and are now researching “before and after” accident statistics to establish whether there really has been a reduction in deaths and associated destruction.
They too have reported camera damage ranging from arson to axing, to super glueing, to stoning and sawing and spray painting and simply being shoved over!
In fact, in the whole of Britain, more than 200 cameras were destroyed in 2007 at a cost of more than £500 000. If there were a purpose other than fund raising behind their erection, it would be difficult to complain about their presence, but the sad fact is that little science goes into their deployment.
The relevant authorities are only too well aware that the location of virtually every fixed camera is logged on GPS systems and that motorists in the know simply slow down at the relevant spot and then resume a more normal speed.
To get round this, an average speed system has been introduced on some roads and is often implemented on motorways in UK when maintenance work is reputedly being undertaken, which is most of the time on the M25.
As you enter the demarcated zone, which is invariably restricted to a ludicrous 30 mph, a camera captures your number plate and does the same on exit.  Modern technology quickly computes the avarage speed and Royal Mail delivers the fine.
The problem is though that the system is left in-situ even when there is no maintenance being undertaken as discovered by my mate in London who had points deducted for averaging under 40 mph in such circumstances.
To add or not
Motor oil additives have long been the subject of heated debate and because of the controversy surrounding their use, I spend a fair bit of time reading about them on the web. You do not need to read long to establish that the use of additives is ill-advised both from a cost and a performance point of view. In fact, in America where litigation is as common as clouds in the British sky, you will find regular court orders demanding the withdrawal of screeds of advertisng claims.
Sadly, these advertising claims tend to be at their loudest when the real benefit, if any, is at its lowest ebb. The fact of the matter is that modern motor oils contain a package of additives each purpose-designed to deal with operating conditions inside a specific engine and in such proportions as maximises the benefit conferred by each. By pouring in additives, the balance will automatically be upset such that damage could actually be inflicted.
The truth of the matter is that modern oils, provided you use those recommended by manufacturers, are so effective that engine failures attributable to lubrication problems are unheard of. 
Indeed, massive distances such as 500  000 kilometers before overhaul are common place today, so what are you achieving by spending money on expensive additives?
Additives simply do not do all these things and as stated, can reduce an oil’s overall effectiveness.