"Rod Hewitt" wrote in message
...
"top gear" wrote in
:

It is very difficult to
compress and keeps an engine very clean. It prolongs a cat as an
extra.

If you really want an engine to last use an oil compressor, available
in the USA, so only available here by mail order from the US. It
maintains oil compression in a vessel. When the crank starts it spurts
the oil right through the galleries to the dry bearings, far faster
than the oil pump can do.

Sorry, I think that I have lost it here. You buy synthetic oil which is
"very difficult to compress". Then you buy an oil compressor to compress
this "very difficult to compress" oil? Is that right?

It keeps oil compressed in a container, so that when the crank moves oil is
injected into the galleries. Overnight the oil runs down into the sump
leaving the galleries and engine upper end dry. That is one reason why most
engine wear is in the start/warm up stages.

Is synthetic oil any less compressible than 'ordinary' oil?

Very difficult to compress

(As a Saab driver, I am used to using orange gnat's ****. Works fine.
Labelled Saab so I guess that it must be recommended by them.)

If it is very runny, it is probably synthetic.

Rod

www.annalaurie.co.uk