Regarding venting, I think I was considering a different idea than Innuendo and wb, I was actually thinking about the potential for creating a vapour trap between an assumed filler cap mounted inside the rear 1/4 -upper tailight section and the back of the lamp unit, depending on how that is managed. Thus you could get the cap venting into a space, and a vapour trap very close to the rear of where the lamps are. I was musing ... maybe... that space could be vented with a channel downwards inside the rear 1/4 out to under the side wall below the floor. (Dunno bout mud water etc flying up into it from the road/wheel though).
Regarding petrol stations and mobile phones (just quickly)... lol, the majority of the stuff on the net about this seems to me to be opinion pushed by people (including some journalists) who feel that their freedoms/convenience are hampered by not being able to use a mobile at a servo. Agreed there is a heap of stuff out there saying its safe to use mobiles at petrol stations becuase there has never been a proven incident, however, almost all of these articles are quoting each other quoting the original source, which was an ATSB report published in 2005, which looked at 243 fires in petrol stations world wide between 1993 and 2004.
The one in Sydney was after this (about 2007-8) and was (as far as I am aware) confirmed ignited by mobile phone not static.
Here is youtube video in Aug 2006 (the date is on the surveilance tape), a year after the ATSB report was published, which appears to show a fire igniting at a service station after a person on a phone touched a car.
http://www.youtube.com/watch?v=gct1BmKNvU0
Politely, the Australian Mobile Telecommunications Agency (AMTA) referred to in links earlier on in this post imaginably has an interest in gaining as much access for phone users as possible, they do seem to be on a bit of a campaign about this. For example; Here is another of their reports where they question an airlines practice regarding protecting its air flight systems!... and then goes on to discuss petrol and automotive fires.
http://www.computerworld.com.au/arti...omobiles_amta/
Now I dunno how many airworthyness engineers work at the AMTA.... but in the meantime heres how some others look at it;
http://engworks.ca/Whitepapers/Cellp...sLocations.pdf
(see conclusion, page 10.)
The MD of Caltex Australia;
http://www.caltex.com.au/LatestNews/....aspx?ID=13151
The RACQ reckons (a while back) that in 10 percent of petrol station fires examined, the source was not determined but that mobiles could not be ruled out.
http://www.racq.com.au/motoring/cars...and_fuel_fires
and the current MSDS for shell premium 95 unleaded (See section 7) also advises to keep mobile phones away.
http://s03.static-shell.com/content/...lpremium95.pdf
But still, I agree there is still some uncertainty about it yes, but less uncertainty than there was in 2005, and the majority of search engines on the internet atm tend to bring up articles which play to a popular idea, but are becomming years out of date.






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