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fuel

is 100 octane Leaded gas OK for our cars ?

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Old 06-18-2013, 07:36 AM
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It would be perfect.
Old 06-18-2013, 08:44 AM
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Quote:
Originally Posted by peter3216 View Post
is 100 octane Leaded gas OK for our cars ?
Where you get that?
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Old 06-18-2013, 08:57 AM
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I know where to get 100 unleaded.
Old 06-18-2013, 09:32 AM
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Quote:
Originally Posted by peter3216 View Post
is 100 octane Leaded gas OK for our cars ?
They love it. Just make sure the cat or anything like that is removed before using it.

Qauttrrounner= Usually it can be found near a stock car track, or a road race track and small airports that have old planes around. I have three stations within 20 miles from my garage with 112 leaded which i mix in some cars with pump 93. The really high HP & boost cars I use it full strength if i am planning some track time. One side benefit of living in WI and near Road America. Come on over and live here in the summer, winters are not much fun though. You can also order 112 or 117 octane in 55 gallon barrels if you have a good place ( and the nerves) to store it.
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Last edited by voitureltd; 06-18-2013 at 11:04 AM..
Old 06-18-2013, 10:58 AM
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Peter3216,

Thanks for posting this question. We have leaded race fuel sold near our house and we have considered buying it. Our only concern was having an LM-1 for AFR monitoring. This is what Innovate says about leaded fuel with the LM-1.

"Wide band oxygen sensors like the one shipped with the LM-1 are designed to work with unleaded gasoline. Using them with leaded gasoline will significantly reduce the lifespan of the sensor. The reduction is directly proportional to the metal content of the fuel. In most cases, a wide band sensor will provide accurate measurements somewhere between 50 hours and 500 hours with leaded fuel."

I don't know if you have an AFR sensor, but just wanted to let you know about this issue. It is a little crazy that the times are "between 50 hours and 500 hours". Hopefully, if you have LM-1 style sensor, you get the 500 hours!
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Old 06-18-2013, 11:21 AM
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I usually run a 50/50 mix of 93 and 110 leaded in my 86.My car really loves it, and the smell while idling is great.I am also running a LM-1 with no ill effects for the last 4 yrs.Once a year I pull the sensor from the exhaust and clean it off with a little fine grade steel wool and re install.
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Old 06-18-2013, 12:23 PM
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i was told there is a little airport near my summer place that has the leaded gasoline i did not go yet, wanted to know if it was OK before i when .

They will not let anyone put it in the car i have to bring a gas container.

I do have an LM-1 thanks for that info.
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Old 06-18-2013, 05:11 PM
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make sure you chek Av gas for water..
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Old 06-18-2013, 05:42 PM
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if you live near a airport they have 100LL 100 low lead. i would not be to concerned with finding water in it unless you are in a area with some old fuel tanks. most all of the aviation fuel is filtered for water as it comes out of the holding tanks in the ground. in 10 years of flying i have never even found a drop!

i have considered running it in my 930. most all airplanes are air cooled and the motors seem to like it. you do have a issue with lead building up on the spark plugs but that is when you are running it all the time.

anyway out there know or have had experience running 100LL in our cars?
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Old 06-18-2013, 06:56 PM
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Just remember 100LL is still leaded gas in case someone reads this running a cat.
Old 06-18-2013, 07:16 PM
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And if running an O2 sensor.
It's not the outside (bulb tip) of the sensor that builds up and ceases working, it's the sensing device inside.
The Dynapack dyno uses a Motec PLM to monitor Lambda, and we see brand new sensors die within a day's dyno session on old V8s running leaded racing fuel.
Low lead will contaminate the O2 sensor and skew the readings, just not as quickly as leaded fuel.
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Old 06-18-2013, 07:22 PM
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Unless the motor 'pings' on a diet of 91-93 octane, does running anything higher really provide any benefit(unless timing is changed)?
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Old 06-18-2013, 07:42 PM
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Quote:
Originally Posted by voitureltd View Post
They love it. Just make sure the cat or anything like that is removed before using it.

Qauttrrounner= Usually it can be found near a stock car track, or a road race track and small airports that have old planes around. I have three stations within 20 miles from my garage with 112 leaded which i mix in some cars with pump 93. The really high HP & boost cars I use it full strength if i am planning some track time. One side benefit of living in WI and near Road America. Come on over and live here in the summer, winters are not much fun though. You can also order 112 or 117 octane in 55 gallon barrels if you have a good place ( and the nerves) to store it.
Anyone ever seen mail order 5 gallon portions of 100 or 110 unleaded anywhere? This might be more viable for storing than a 55 gallon drum.

I heard this was available somewhere before at a track event but never heard where from.

No local hot rod stations around here, and dont like paying $9 per gallon at the track.
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Old 06-19-2013, 10:03 AM
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I've seen the 5 gallon containers of high octane gas at a local auto parts store and it was more expensive than $9 per gallon. I don't remember the octane or exact price but it was up there.
Old 06-19-2013, 10:16 AM
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Quote:
Originally Posted by fredmeister View Post
Anyone ever seen mail order 5 gallon portions of 100 or 110 unleaded anywhere? This might be more viable for storing than a 55 gallon drum.

I heard this was available somewhere before at a track event but never heard where from.

No local hot rod stations around here, and dont like paying $9 per gallon at the track.
There is a BP 5 miles from me that sells 260GT right out of the pump, it used to be 7.29 a gallon, now it's 9.39!!!
Old 06-19-2013, 11:37 AM
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$9 is about what we pay for a gallon of regular 91 pump gas here in Sweden

Wish we could have some really high octance gas in our pumps here. And ethanol free would be nice too :-/

Old 06-19-2013, 02:51 PM
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