lead substitute
Thread Starter
Heel & Toe
Joined: Jan 2010
Posts: 19
Likes: 0
From: Myrtle Beach SC
lead substitute
For those who use a lead additive or substitute, what kind do you recommend?
I had been using CD-2 super concentrate but I can no longer find it. WalMart know longer carries it.
Thanks for the input!
I had been using CD-2 super concentrate but I can no longer find it. WalMart know longer carries it.
Thanks for the input!
Safety Car
Joined: May 2003
Posts: 4,797
Likes: 239
From: Ocean Township NJ
Max Lead 2000 (Podell)
and
Octane Supreme 130 (Kemco)
The first of these is contained in a kerosene carrier and the second is toluene based. Toluene is itself an octane booster. Neither of these are available in stores.
The question is, why do you need them? You certainly do not need lead additives for your exhaust valves. Anyone saying that you do is giving you bad information. The only other possible reason is that you need to boost your octane rating. Be warned that both of these additives absolutely will boost your octane by as much as three points. Any further boost beyond this quickly bumps up against the point of diminishing returns. Anything beyond about 4 points becomes economically disadvantageous and doping with race gas or avgas becomes the better option.
Thread Starter
Heel & Toe
Joined: Jan 2010
Posts: 19
Likes: 0
From: Myrtle Beach SC
All of the off-the-shelf lead substitutes are snake oil. There are only two additives, that I know of, that contain REAL TEL, those are:
Max Lead 2000 (Podell)
and
Octane Supreme 130 (Kemco)
The first of these is contained in a kerosene carrier and the second is toluene based. Toluene is itself an octane booster. Neither of these are available in stores.
The question is, why do you need them? You certainly do not need lead additives for your exhaust valves. Anyone saying that you do is giving you bad information. The only other possible reason is that you need to boost your octane rating. Be warned that both of these additives absolutely will boost your octane by as much as three points. Any further boost beyond this quickly bumps up against the point of diminishing returns. Anything beyond about 4 points becomes economically disadvantageous and doping with race gas or avgas becomes the better option.
Max Lead 2000 (Podell)
and
Octane Supreme 130 (Kemco)
The first of these is contained in a kerosene carrier and the second is toluene based. Toluene is itself an octane booster. Neither of these are available in stores.
The question is, why do you need them? You certainly do not need lead additives for your exhaust valves. Anyone saying that you do is giving you bad information. The only other possible reason is that you need to boost your octane rating. Be warned that both of these additives absolutely will boost your octane by as much as three points. Any further boost beyond this quickly bumps up against the point of diminishing returns. Anything beyond about 4 points becomes economically disadvantageous and doping with race gas or avgas becomes the better option.
Safety Car
Joined: May 2003
Posts: 4,797
Likes: 239
From: Ocean Township NJ
Exhaust valve seat recession is unlikely to occur except in extreme conditions – for example when vehicles are run constantly for days on end, and at high speeds, and carrying heavy loads.
Team Owner
Joined: Aug 2007
Posts: 58,061
Likes: 7,146
Army
Also, in most of these 9.5:1 compression engines that are properly tuned you can run 87 octane pump gas (and yes with Ethanol) all day long.
Race Director
Joined: Jan 2003
Posts: 17,693
Likes: 3,683
From: Central Arkansas
This is not a substitute. It's for off road use and it's not inexpensive. I don't know if 1.2% lead is significant. It's primarily an octane booster.
http://www.batterystuff.com/files/manual-OS2q.pdf
http://www.batterystuff.com/files/manual-OS2q.pdf
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Safety Car
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From: Georgetown TX
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An old friend said, "the only lead he uses is a few fishing sinkers dropped into the tank". Makes sense to me. To me, "Shell" gasoline is the best thing to use in these cars.
Safety Car
Joined: Mar 2007
Posts: 3,976
Likes: 54
From: On the bank of the Columbia River..... Washington State
Never used them, never will. 
Drifting
Joined: Jul 2009
Posts: 1,610
Likes: 11
From: Tampa, FL & Harleysville, PA
I use 100LL (100 octane low lead) avgas mixed 50/50 with 94 octane non-ethanol in my 1961 fuelie most of the time. When temps here in Florida go beyond 90 degrees, I run 100% avgas. No feathering the accelerator and quick hot start ups, but then I only put about 30 to 50 miles a week on the clock. She runs like greased lightning. Stay away from the bottled B.S., yes I stay away from snake oil products too.
Just my two cents
rustylugnuts
Just my two cents
rustylugnuts
Last edited by rustylugnuts; Feb 4, 2012 at 02:44 PM.
Drifting
Joined: Oct 2001
Posts: 1,770
Likes: 33
From: Cohasset MN
2017 Corvette of the Year Finalist
2016 C1 of Year Finalist
I used to use lead substitute in both my '57 and '61. The spark plugs tended to foul and I had to replace them about every two years. I quit using the stuff and I no longer have spark plug problems.
As to gas, I can still buy 91 octane non-ethanol up here and I find it runs much better than 87 octane with ethanol.
As to gas, I can still buy 91 octane non-ethanol up here and I find it runs much better than 87 octane with ethanol.
