Just wondering if anyone uses Lead subsitutes in the old Trucks or does everyone Just use Unleaded. If I don't use a Lead subsitute can I hurt anything.
Lead ???
Posting Guru
Joined: Jul 2003
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From: East Central Florida
It shouldn't be a problem as long as you don't pull long & hard with your engine.
If you do run prolonged higher RPMs, toting heavy loads up long hills often it could become a problem. Seats only sink or erode when the engines are overtaxed, and they seldom are affected under normal, non-commercial, driving conditions.
Remember there was sometning known as White Gas produced by Amoco "Back In The Day" and it was unleaded as well as quite popular because it burned cleaner than lower octane leaded fuels of the day did.
FBp
If you do run prolonged higher RPMs, toting heavy loads up long hills often it could become a problem. Seats only sink or erode when the engines are overtaxed, and they seldom are affected under normal, non-commercial, driving conditions.
Remember there was sometning known as White Gas produced by Amoco "Back In The Day" and it was unleaded as well as quite popular because it burned cleaner than lower octane leaded fuels of the day did.
FBp
Lead Driver
Joined: Oct 2004
Posts: 8,062
Likes: 35
From: Central Oregon
Originally Posted by FordBoypete
It shouldn't be a problem as long as you don't pull long & hard with your engine.
If you do run prolonged higher RPMs, toting heavy loads up long hills often it could become a problem. Seats only sink or erode when the engines are overtaxed, and they seldom are affected under normal, non-commercial, driving conditions.
Remember there was sometning known as White Gas produced by Amoco "Back In The Day" and it was unleaded as well as quite popular because it burned cleaner than lower octane leaded fuels of the day did.
FBp
If you do run prolonged higher RPMs, toting heavy loads up long hills often it could become a problem. Seats only sink or erode when the engines are overtaxed, and they seldom are affected under normal, non-commercial, driving conditions.
Remember there was sometning known as White Gas produced by Amoco "Back In The Day" and it was unleaded as well as quite popular because it burned cleaner than lower octane leaded fuels of the day did.
FBp
Fleet Owner
Joined: Jun 1999
Posts: 24,552
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From: Creedmoor, North Carolina
Originally Posted by Kongslibakken
Thanks for the info I treat her the a baby no pulling or high RPM'S have'nt even had her past 55 mph. I think I should be OK Thanks again.
Ford truck were built to work. IMHO
John
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Laughing Gas
Joined: Jun 2003
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From: Parkville, MO (KC)
A stock 240/300 is so restricted that I doubt you could ever lug one and get the heads that hot anyhow. Heating up the heads occurs with early detonation, as in "pinging". You *could* try driving up a hill in 4th at 20 mph, but even that would have to be at 1/2 throttle, and the ensuing lean mix would keep you from detonating. Hmmmm....
I remember this quesiton coming up frequently in the inline forum and over at fordsix -- general consesus was that you don't have to worry. If burning unleaded causes you trouble, it was trouble that was going to happen soon anyhow.
I remember this quesiton coming up frequently in the inline forum and over at fordsix -- general consesus was that you don't have to worry. If burning unleaded causes you trouble, it was trouble that was going to happen soon anyhow.
Posting Guru
Joined: Jun 2002
Posts: 1,214
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From: Rio Rancho USA
Originally Posted by jowilker
Are you crazy, treating a Ford truck like a sissy will kill it off quickly. Take that dress and painted nails off that old Ford and let it live.
Ford truck were built to work. IMHO
John
Ford truck were built to work. IMHO
John
Just my .02.
Posting Guru
Joined: Jul 2003
Posts: 2,222
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From: East Central Florida
I agree it is great to clean out the cobwebs every so often, it prevents all the things everybody above says. Also it certainly won't hurt it to run it out now & then.
My statement about high RPM over a long period pulling a load is like pulling a two axle equipment trailer with a bobcat on it over the contentenantal divide a couple times a month with a light weight engine. . . .
I used to "Dust off my 240 daily". It ran UNL 87 Octane 100,000 without problems,
But it was only pulling itself, plus our roads are flat here, so no real load to it. . . .
FBp
My statement about high RPM over a long period pulling a load is like pulling a two axle equipment trailer with a bobcat on it over the contentenantal divide a couple times a month with a light weight engine. . . .
I used to "Dust off my 240 daily". It ran UNL 87 Octane 100,000 without problems,
But it was only pulling itself, plus our roads are flat here, so no real load to it. . . .
FBp
Freshman User
Joined: Dec 2004
Posts: 41
Likes: 0
From: Longtucky, CO
I have a '65 F-100 and when I don't have a lead substitute in the tank, it makes a lot of noise at the valves. The lead substitute quites it down a lot. I'm not sure if it really helps but I know that the valve seats haven't been touched in the 40 years it's been around.
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