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put in 3 liters of it when i was just about empty and it didn't help much. i failed again, it lowered CO to nothing at all, didn't read anything and HC was about half of what it was, but NOx was only down to about 2200 (it was about 2500), 700something is what i need to pass.
i didn't have time between class and my test to retard my timing though so that was only trying the gas line antifreeze, so it does work, but not enough of an impact on the NOx.
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Brendan:
Bunch of 240s
Some Opels
And a Honda
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