Lead Substitute
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Senior User
Joined: Oct 2008
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From: Rockwall TX
Lead Substitute
lead substitute? i heard that instead of useing that expensive lead substitute in your gas you can use some transmission fluid? has any one else heard about this and if you have witch kinds can you use and how much? any info on this would be great.
Fleet Owner
Joined: Jul 2004
Posts: 27,298
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From: NM
You don't need to use ANYTHING, unless you are doing something really, really unusual with your truck. Lead was actually BAD for valves.
If you want upper cylinder lubrication for some reason, use Marvel Mystery Oil. If you want to clean your intake tract, my preference is SeaFoam.
If you want upper cylinder lubrication for some reason, use Marvel Mystery Oil. If you want to clean your intake tract, my preference is SeaFoam.
Post Fiend
Joined: May 2008
Posts: 7,641
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From: Poway, Ca.
Lead was added as an antiknock additive to substitute for reduced octain at advanced timing for performance..That's it.
Reduce your timing by 1 to 2 degrees or add an octain substitute.
Or add TEQUILLA!!!!!
EEEEEEEH Haaaaaaa
J!
Reduce your timing by 1 to 2 degrees or add an octain substitute.
Or add TEQUILLA!!!!!
EEEEEEEH Haaaaaaa
J!
Logistics Pro
Joined: Feb 2005
Posts: 3,952
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From: Upper Left Coast
Transmission fluid is a hydraulic oil. It is simply a light oil that has some extreme pressure (and other ) additives for use in hydraulic motors, pumps and actuators.
It was never meant to be burned in a combustion chamber.
If it is burned, it leaves some pretty nasty combustion products that you absolutely do not want sticking to your valves, valve guides, tops of your pistons, and in your top piston ring grooves.
If most of those retail fuel additives were so beneficial then why do engines that run on propane run so much cleaner and last so much longer than engines that run on gasoline? (it's just about impossible to use fuel additives in a propane powered engine)
Use transmission fluid in your transmission.
Leave gasoline additives on the shelf.
They only seem to be suggested and promoted by, and are only benefit to those who sell them.
Cheers,
Rick
Roast em' if you got 'em
Joined: Mar 2005
Posts: 22,014
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From: Rio Rancho, NM
Instead of looking around for a lead additive, you might try looking around for some different mechanics....lol
As has already been stated, you don't need to add anything. If your "mechanic" gives you grief about it tell him you will be sure to bring the engine to him when it wears out from running unleaded (I hope he doesn't hold his breath though)
Bobby
As has already been stated, you don't need to add anything. If your "mechanic" gives you grief about it tell him you will be sure to bring the engine to him when it wears out from running unleaded (I hope he doesn't hold his breath though)
Bobby
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Fleet Owner
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From: Central PA
In the late 80's or early '90's I would put some in each fillup if I remembered. Then in the late 90's when I first latched on to FTE, it was email based forum back then, we had a discussion about lead and it was told by men far smarter than me our trucks do not need it, UNLESS you are doing heavy hauling daily in extreme (hot, dusty, etc) conditions or racing or putting a lot of stress on your engine then you do not need lead additives.
I have not used lead in my engine since at least 1996 and I have not had any problems, no knocks, no pings, no smoke...
I have not used lead in my engine since at least 1996 and I have not had any problems, no knocks, no pings, no smoke...
Fleet Owner
Joined: Jul 2004
Posts: 27,298
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From: NM
You need hardened valve seats if you want your seats to last 100,000 miles under constant heavy load, like an over-the-road hauler, pulling a heavy trailer all the time, etc. Even then it is real questionable if a lead substitute would provide a benefit.
If it's dusty, your best bet is to go to a paper filter instead of an oil bath.
If it's dusty, your best bet is to go to a paper filter instead of an oil bath.
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