On Thu, 8 Dec 2011 00:25:48 -0000, "Doctor Drivel"
wrote:


"Dave Plowman (News)" wrote in message
...
In article ,
Doctor Drivel wrote:

"Dave Plowman (News)" wrote in message
...
In article ,
Doctor Drivel wrote:
The Tesco fully synthetic is made by Chevron, so a good buy and easily
available.

Don't go by maker name or anything else. Check the spec on the
container and make sure it meets/exceeds the requirement for your
engine.

It is the highest spec.

No such thing.

Again....It is the highest spec

It might be for the latest engines but there is no such thing as an
oil that can be universally applied by virtue of it being 'the
highest spec'

If it is designated as suitable for modern engines then It will almost
certainly have very low levels of Zinc dialkyldithiophosphate and is
thus totally useless for the cam and cam followers interface on a
great many vehicles particularly those built prior to 1990's Indeed
there are vehicles sold less than 5 years ago in the UK that can't
cope with low ZDDP oils.

--