"Dave Plowman (News)" wrote in message
...
In article ,
top gear wrote:
REGULAR OIL CHANGES WILL HAVE THE SAME EFFECT, it doesn't matter what
the oil is, as long as it is the correct spec' for the engine.

The oil does matter. The best available is fully synthetics like Mobil 1
and Shell Helix fully synthetics. These oils are much superior to normal
mineral oils in just about every aspect. This is a know fact that is not
open to question.

Only if your vehicle is designed for the longer service life of such oils.
Using them, and changing them at 'dino' intervals hasn't shown them to
have any advantages over a good quality non or semi synthetic.

Ordinary mineral oils can be seriously degraded after 4K miles, while fully
synthetics will easily surpass the makers recommended change intervals with
only slight degradation, or none at all. Only a little research reveals
this. As I have said previously, this point is not open to question, it is
vox pop. Anyone saying the opposite usually has some financial gain
somewhere in order to do so.