Please go to the emissions section on www.auto-rx.com and read report. Auto-Rx works on emissions by cleaning engine there by taking load off of converter.Read the state numbers.On your car get it into rinse mode and go for test, no need for anything else.
AutoRX and Emissions Testing
- Thread starter Frank
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I still don't see what AutoRX has to do with the fuel delivery system. My question pertains to the timing of when to add Chevron Techron and a new fuel filter. Frank suggests not to bother.
I'm on the first rinse phase with an 84 Civic. I'm getting ready for the California smog and, as I've discussed with Frank, I'm going to post the results after two cycles with ARX. The car has 380k miles and the head has never been off. So far, at 1k clean and 500 miles into the rinse, the gas mileage has gone from 37mpg to 42mpg. That's 12 percent increase . And it looks like the oil consumption my be greatly reduced. So my answer to you is follow Frank's instructions. Don't add anything.
JHZR2
Staff member
Last emissions test, I did an auto-rx run on my 91 318i, for the sake of doing it (engine appeared clean, but I gave it a shot). Emissions were clean, same as initial test after I got the car, and NOx was high, same as my intiial test.
This time, I used LC and FP, which I hadnt heard of the last time I had my dyno emissions test. Emissions results were exactly the same, including nigh NOx.
All tests performed between 72k and 92k miles, over 3 years.
Now, surely someone wanting to defend their product will claim that I have some 'major mechanical issue' with my engine, but I do not; MPG s great, power is great, compression is excellent, CO, HC are low, etc. I dont spare any expense in maintenance of my vehicles.
So, what Im saying, is that if you have some issue, sludge buildup, deposits, poor valve seating/sealing, etc., then a number of treatments can help it, and ought to be completed prior to your test. If you have a lazy O2 sensor or dying cat converter, it needs to be replaced; chances are that its past its useful life for one reason or another.
In the world of catalysis, there is rarely an easy 'miracle cure' to get the conversion efficiency increased. In the world of combustion, IMO, some relatively major changes (timing, bulk fuel characteristics change, major deposit removal, major compression improvement, etc.) need to be made to make a big difference. In a healthy engine, likely >75% of reasonably maintained vechiles, there will likely be no real difference.
So, overall, id say that if your engine was in reasonably good operating shape, MPG around spec, etc., itll make no real difference emisions wise wen you add the additive.
If I were you, Id want to run the cleaner through before I dumped my old oil, just in case some made its way into the oil, or transferred some cleaned junk into the oil, so that the oil in my engine after change would be as clean as possible for as long as possible.
JMH
This time, I used LC and FP, which I hadnt heard of the last time I had my dyno emissions test. Emissions results were exactly the same, including nigh NOx.
All tests performed between 72k and 92k miles, over 3 years.
Now, surely someone wanting to defend their product will claim that I have some 'major mechanical issue' with my engine, but I do not; MPG s great, power is great, compression is excellent, CO, HC are low, etc. I dont spare any expense in maintenance of my vehicles.
So, what Im saying, is that if you have some issue, sludge buildup, deposits, poor valve seating/sealing, etc., then a number of treatments can help it, and ought to be completed prior to your test. If you have a lazy O2 sensor or dying cat converter, it needs to be replaced; chances are that its past its useful life for one reason or another.
In the world of catalysis, there is rarely an easy 'miracle cure' to get the conversion efficiency increased. In the world of combustion, IMO, some relatively major changes (timing, bulk fuel characteristics change, major deposit removal, major compression improvement, etc.) need to be made to make a big difference. In a healthy engine, likely >75% of reasonably maintained vechiles, there will likely be no real difference.
So, overall, id say that if your engine was in reasonably good operating shape, MPG around spec, etc., itll make no real difference emisions wise wen you add the additive.
If I were you, Id want to run the cleaner through before I dumped my old oil, just in case some made its way into the oil, or transferred some cleaned junk into the oil, so that the oil in my engine after change would be as clean as possible for as long as possible.
JMH
My intention was to run the Chevron Techron through just before the oil change: it is a question of whether it should be just before the end of the clean phase or the rinse phase - the same goes for replacing the fuel filter.
JHZR2
Staff member
as I said, Id want the oil that could potentially be laced with additve, byproducts of cleaning, etc., etc., to be out as soon as possible. This is irrelevant to arx in your oil system, IMO.
So id get the techron done before you drain your clean phase oil... and then change your fuel filter after your techron dosing is all used up.
arx will be cleaning your oil system, and I suppose, if doing the injector cleaner puts junk in the oil, the arx will clean that stuff up too, if there is enough holding capacity in the arx left.
JMH
So id get the techron done before you drain your clean phase oil... and then change your fuel filter after your techron dosing is all used up.
arx will be cleaning your oil system, and I suppose, if doing the injector cleaner puts junk in the oil, the arx will clean that stuff up too, if there is enough holding capacity in the arx left.
JMH
Thanks, JHZR2. Your recommendation is what I was leaning towards doing. Particularly, in advance of emissions testing I thought it may in fact benefit the results.
I have just over 400 miles remaining on my AutoRX clean phase for my 95 Maxima with 60,200 mostly highway miles. I have to take the car through emissions testing within the next month.
I was thinking about running a bottle of Chevron Techron through before the completion of the AutoRX clean phase as well as replacing the fuel filter following running out the Techron and changing the oil and filter.
Ignoring the timing of the emissions testing, would I be better off running the Techron and replacing the fuel filter near the end of the AutoRX rinse phase, rather than the clean phase, or would it make any difference?
I was thinking about running a bottle of Chevron Techron through before the completion of the AutoRX clean phase as well as replacing the fuel filter following running out the Techron and changing the oil and filter.
Ignoring the timing of the emissions testing, would I be better off running the Techron and replacing the fuel filter near the end of the AutoRX rinse phase, rather than the clean phase, or would it make any difference?
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