hi, i am using racing gas with my setup and i just recently got a code telling me that i need to replace my o2 sensor. I have heard from people saying that by using racing gas it will damage the o2 sensor and if so then what o2 sensor are you guys using that is compatible with (90% 91 octane and 10% vp 110 octane) a mixture i use when refilling my gas tank.

BTW my o2 sensor was new and it only had about close to 4,000 miles on it.

any sugguestion or help would be appreciated

 

Lead destoys any oxygen sensor, you won't get more than a few miles out of it before it is completely clogged. I don't know of a sensor that is ok with it, most people just resort to changing them very frequently, or not relying on one at all.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by drdisco69 &raquo;</TD></TR><TR><TD CLASS="quote">Lead destoys any oxygen sensor, you won't get more than a few miles out of it before it is completely clogged. I don't know of a sensor that is ok with it, most people just resort to changing them very frequently, or not relying on one at all.</TD></TR></TABLE>That is like one of those "street myths". I don't know where you got that, but it isn't true. Even a normal o2 sensor will last pretty long with lead. They have o2 sensors now that are able to operate in a leaded fuel environment--the European market still has leaded fuel available, so the o2 must work for a while.

 

i dont know where you herd that but i have ran c16 countless times and never a problem with my o2.

 

Some braniac put the leaded fuel from the drag team into the FSAE car, and we drove it about 4 hours around the parking lot before it started misfiring and completely losing power. It's running a MoTec M4 with their wideband for closed loop, so it really depends on it, and a bad sensor will bring out the worst in it. When I took the sensor out, one side was black from carbon, the other was brown from lead, and it had coated the entire inside of the exhaust.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by d16dcoe45 &raquo;</TD></TR><TR><TD CLASS="quote">That is like one of those "street myths".</TD></TR></TABLE>

Ok. And the white paper published by Bosch about their own wideband O2 sensor is a street myth too, huh?



I've said it before, I don't make this **** up.

 

ive heard of this problem, and it happened to me twice

and alot of my dsm friends said that bosch o2 senors tend to last longer the other o2 senors when used with race gas

 

we run 100 octane highly leaded race fuel [av gas] and the lead does eventually case the o2 sensor to fail
we now run the autronic without the sensor and only install when on the dyno.

O2 sensors that are used with leaded fuel can benefit from being soaked in vinegar after use . We have found this really exstends their life .

 

AV fuel is horrible for a automotive engine

 

down here its av gas or 98 unleaded
the fuel companies sell time expired av gas as no 1 race fuel !!

 

it's rather go with the 98 unleaded FOR SURE

AV gas is too dry, it's missing a lot of the additives you need in an automotive situation

 

I have killed a few O2's with race gas-it's not a myth.

 

bump for some solution to this problem

And thanks for some of the info guys

 

There are race fuels without lead that you can use-Cool Blue 100 is lead free.

 

vp makes non leaded up to 104 i think.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by drdisco69 &raquo;</TD></TR><TR><TD CLASS="quote">Some braniac put the leaded fuel from the drag team into the FSAE car, and we drove it about 4 hours around the parking lot before it started misfiring and completely losing power. It's running a MoTec M4 with their wideband for closed loop, so it really depends on it, and a bad sensor will bring out the worst in it. When I took the sensor out, one side was black from carbon, the other was brown from lead, and it had coated the entire inside of the exhaust.

Ok. And the white paper published by Bosch about their own wideband O2 sensor is a street myth too, huh?



I've said it before, I don't make this **** up.</TD></TR></TABLE>Even with a "high" level of lead--according to Bosch the sensor will last about 20,000 km--which is roughly 12,000 miles. With a bit less lead, the sensor will last about 60,000 km--about 37,000 miles (roughly)---maybe I shouldn't have said it was a myth, but they last ALOT longer with lead than most people think.

 

Just fyi, Bosch has sensors in Europe which will tolerate up to 3.0 g/Liter of lead without malfunctioning.

 

Those specs are for "***** foot" driving. Running the engines rich like we tend to do will shorten that expectancy further.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by d16dcoe45 &raquo;</TD></TR><TR><TD CLASS="quote">3.0 g/Liter of lead</TD></TR></TABLE>

That's like throwing wheel weights into your fuel tank! Driving down the road, you'd probably have fishing weights falling out of the tail pipe.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">the European market still has leaded fuel available, so the o2 must work for a while.</TD></TR></TABLE>
wrong, leaded fuel has been phased out a long time ago, we (finland) was amongst the last western countries that had 99 octane leaded gasoline, but even thats phased out now. Maybe you can find leaded gas somewhere in russia, but good luck finding it.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">Just fyi, Bosch has sensors in Europe which will tolerate up to 3.0 g/Liter of lead without malfunctioning.</TD></TR></TABLE>
3grams of lead/ liter, I think you're wrong there bro.

 

i've ran 110 leaded several times and have had no cel's

could be the hondata... i'll have to check and see if it's turned off

 

Modified by sparco562 at 12:58 AM 3/17/2006

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sparco562 &raquo;</TD></TR><TR><TD CLASS="quote">i have hondata s200 too, can hondata actually turn off the o2 sensor? </TD></TR></TABLE>
Yes.