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Unleaded Engine



For the benefit of all who have recently contributed to this debate
(again), the Triumph Stag Register has made a good deal of research inot
this subject, and issued a report earlier this year on the subject.  I
re-state, this waas ther result of detailed research approaching staff of
oil companies etc., who had conducted their own extensive research.  Unlike
a lot of stuff I have seen in the press and in other club magazines it was
not "shot from the hip", neither were any commercial interests represented.

Mike Allen the technical adviser and seller of parts to Stag Owners Club
members says in their magazine (July 1998 page 28) that he is about to
start testing the various fuels and combinations on his own car as if no
research and field trials have been done, nor owners experience fed back. 
You need to draw your own conclusions from this.

If you would like a copy of the TSR report which is based only on proven
fact, please let me know.

The brief summary is;

1.  Stag engines are virtually spot-on for unleaded anyway, literally all
it takes is to fit TR7 exhaust valves (not extensive, expensive conversions
as some people are trying to make out).
2.  Some Stags are fitted with hardened exhaust valves anyway
3.  When leaded petrol is phased out in Europe, Lead Replacement Gasoline
(LRG) will do the job quite well as it is already in Netherlands, Germany,
Austria
4.  the Stag seems to run fine in standard trim (alleged soft exhaust
valves) and it is believed all Stags sold in the USA were fitted with soft
exhaust valves and running nicley for many yearson unleaded.

So, what's the fuss?

Mike Wattam
Triumph Stag Register



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