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Well three tests later I finally got my ZE to pass massachusetts emissions. I failed the 1st time because I had a bad rotor. It was loose on the distributor shaft and chewed up the inside of my dist. cap. I failed for Nox, CO & HC. 2nd go round I passed HC & CO but failed Nox. Limit was 2.5 I got 3.47. So this last time I added a gallon of coleman camp stove fuel to ~1/3 tank of gas. My HC & CO dropped ~30% and my Nox went from 3.47 to 2.37.

In short add a gallon of Coleman Camp stove fuel to a 1/3 tank of gas and you will pass emissions.

Makes perfect sense. Gasoline is one of the worst burning fuels for emissions because the molecules are irregular. Pretty much any purer substance like propane or ethanol will burn cleaner because it's a more predictible conversion to pure CO2 and water, with less instance of harmful emissions.

Last year mine passed fine. 95Ze, Ms8, KL36, No EGR, 94 Octane Chevron.

had my car registered since august 2003 and i've still yet to get an emissions letter.

we are supposed to check it every 2 years here in MD. Maybe they forgot about my car

TsiMiata wrote:In short add a gallon of Coleman Camp stove fuel to a 1/3 tank of gas and you will pass emissions.

That's useful to know, but do you know what's in Coleman's? Its not something one could get in UK by name.

It's Naptha with a bit of rust inhibitor in it. I think it also goes under the name of "white gas"

Well, I was wrong; you can buy it in UK - half a litre for £5; that's about $44 for that gallon

ouch! it was $5.50 a gallon here

Where did yo hear of this trick?

I have e-test due in Feb

Someone posted it on here a few weeks ago.

What octane gas did you have in the tank when you put the coleman fuel in? Did you get tested as a stock K8 or did you go under a "modified" (hotrod as we call is here in Ontario, CanadA) class?

Sorry for all the questions, it's just that I' wanna give this a try this or next week.

I was using 93 octane. We don't have a hot rod classification here, all cars get tested the same. It was tested as being a 1.8 liter.

Nd4SpdSe wrote: "modified" (hotrod as we call is here in Ontario, CanadA) class?

Wondering why you want to try this

http://www.mx-3.com/phpbb2/viewtopic.ph ... ht=ontario

Ontario ROCKS!!!

to play it safe, take as many precautions as possible, because of this:

http://www.mx-3.com/phpbb2/viewtopic.ph ... highlight=

BTW, TSIMiata...how long did you drive with the coleman fuel in your tank before you went for your test

maybe 5 miles tops.