[Mgs] Unleaded fuel and Cylinder Head

[Simon Matthews]

If I recall correctly, some of these mixtures did absolutely nothing.
One of the mixtures that did work (to some extent) and is available in
the USA was made be Red Line Oils.

Simon

On Tue, Feb 24, 2009 at 4:25 AM, Paul Hunt <paul.hunt1 at blueyonder.co.uk> wrote:
> There are various brews.  Four were tested and compared in the UK -
> phosphorus, manganese, potassium and sodium.  There may be others.  Wear rates
> varied, phosphorus gave about 10% more wear than lead, manganese double,
> potassium triple and sodium five times.  Castrol Valvemaster uses phosphorus
> and I've always stuck to that.  In fact one shouldn't mix additives as they
> can inter-react and cause valve sticking problems, apparently.  A 250ml bottle
> treats 250 gallons and has a handy dispenser marked in litres.  Costs about 10
> quid for a bottle so only adds pennies for peace of mind.  LRP when it was
> available in the UK used potassium, but only at about half the normal dosage
> so it didn't knacker the cat if owners put it into their modern cars!
>
> PaulH.
>  ----- Original Message -----
>
>
>  ... what are the ingredients in the
>  additive?
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