I think you have a few of your facts mixed up. First, plants emit oxygen during respiration, they "breathe" in CO2. And it IS a greenhouse gas, if that is what you mean by "the environmentalists," there are measurements of CO2 and other gasses that have risen at alarming rates over the past 100 years. It IS causing the global warming issue. And any gas (even oxygen) in excess is poisonous. Now to get back to the cars, not biology or chemistry... The car is fine, and so is the family. Adrian 10674 [MODERATOR NOTE: On that happy note this topic is closed. - Mike Substelny] -------------- Original message from Martin Gutkowski <martin@xxxxxxxxxxxxxx>: -------------- David Teitelbaum wrote: >You think CO2 is not poisonous? > I know it's not poisonous - you and I breath it out every couple of seconds, it's emitted by plants during respiration, it's one of the building blocks of life. It's NOT a pollutant, despite what the environmentalists will have you believe. It is also not odourless in high concentrations (like the top of a freshly poured glass of fizzy drink, or a fire extinguisher). What you're talking about is simple lack of oxygen, not the effect of CO2 - and you would most likely wake up in that unlikely event. Carbon monoxide is very, very poisonous and has the effect of replacing oxygen in the bloodstream, IIRC. A person inhaling it in their sleep will never know because it causes unconsciosness. I'm not arguing against responsible use of CO alarms, but CO2 is not a dangerous gas, and a car equipped with a cat will emit only tiny amounts of CO. Try putting a CO meter up the exhaust of a DeLorean with a cat, and see how much it reads. I regularly work with de-catted DeLoreans and adjust the mixture using my CO meter, which should be 1% for a lambda equipped engine and 1.5-2% CO for a B28E metering equipped engine (popular over here for the added performance). Martin [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] ------------------------------------ To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnewsYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/