08-19-2008, 10:55 PM
[quote Filliam H. Muffman][quote macone][quote Filliam H. Muffman]I agree that using premium in a car it is not designed for will not help for something like this.
For smog tests you do want to use Premium. It helps to keep the NOx down and slows the burn. By the numbers, I would suggest driving the piss out of the car prior to the smog test. Include 20 minutes on the freeway and a little Heet (Product name) wouldn't hurt.
Unless you are a smog tech or have worked as a mechanic tuning cars for emissions, I will disagree.
In any case, I still stand by my comment that the car is running too rich. The mixture should be leaned out until the O2 jumps and then backed off. Having a quick adjustment by a mechanic with a combustion meter might be all it needs..
My suggestion comes from real world dyno testing not surfing the net. Speaking of which, either you left something out or you didn't copy and paste enough in your mixture adjustment procedure or are you suggesting that he tells his mechanic what to do?
For smog tests you do want to use Premium. It helps to keep the NOx down and slows the burn. By the numbers, I would suggest driving the piss out of the car prior to the smog test. Include 20 minutes on the freeway and a little Heet (Product name) wouldn't hurt.
Unless you are a smog tech or have worked as a mechanic tuning cars for emissions, I will disagree.
In any case, I still stand by my comment that the car is running too rich. The mixture should be leaned out until the O2 jumps and then backed off. Having a quick adjustment by a mechanic with a combustion meter might be all it needs..
My suggestion comes from real world dyno testing not surfing the net. Speaking of which, either you left something out or you didn't copy and paste enough in your mixture adjustment procedure or are you suggesting that he tells his mechanic what to do?