Lead substitute for gasoline engines

PFS Lead Plus is a complete lead substitute and fuel system lubrication formula. Wont hurt but you dont need it.

Like competitors Wynns lead substitute will lubricate and protect the valve seats from damage caused by running pure unleaded petrol without causing any loss of performance or economy.

Lead substitute for gasoline engines. I always suggest to just use premium fuel. The last Lead fuel was removed in the Mid 90s so for the past 20 years everything has been running on unleaded. If any damage was going to occur in a leaded engine still being used it would have happened all ready.

I had unrestored cars with lead era engines and ran them on unleaded with zero issue. Sim-U-Lead is among the first barrage of additives that are supposed to take the place of lead in gasoline for older engines. Do they require a lead substitute.

Why lead was added to gasoline. First lets look at the primary reasons lead was added to gasoline in the first place. Increase octane to help reduce engine knock.

Protect against valve-seat recession. Lead protected against pre-ignition. Gasolines octane rating indicates its ability to withstand compression before igniting.

Cars from before about 1955 and after 1970 are made to run on low lead or no lead fuel. High performance cars 1955 - 1970 with compression above 951 MAY need octane boost some do some dont. If you want to baby your valves rings and upper cylinders you can add some Marvel Mystery Oil Redex 2 stroke oil or your favorite additive but it is not strictly.

The theory behind lead substitute is that when the engine in your classic car was designed and built gasoline had lead in itmore specifically tetraethyl lead or TEL. That lead served several functions. It boosted the octane rating allowing for higher compression ratios.

And reduced wear on the valve seats. PFS Lead Plus is a complete lead substitute and fuel system lubrication formula. This gasoline additive provides the protection that your engine needs.

My 72 Vette is actually NOT set up to run on unleaded gas. While it is low compression 454 it doesnt have the hardened valve seats of later model engines from 75 on up that were made to run only on unleaded. So I gotta use the lead substitute.

Wont hurt but you dont need it. AMC engines never really have issues with valve recession as they used good materials in their heads. That are most common use MMT and are more like an octane booster.

I have been running unleaded in the Ambassador for 230000 miles and never had valve seat issues. AMSOIL DOMINATOR Octane Boost AOB enhances engine power and responsiveness in both four- and two-stroke gasoline-powered engines by boosting octane by up to four numbers. Just a single application of this lead substitute additive significantly lowers engine knock increases ignition and assists in cleaner fuel combustion.

Like competitors Wynns lead substitute will lubricate and protect the valve seats from damage caused by running pure unleaded petrol without causing any loss of performance or economy. The preservation benefits are very impressive as this product protects petrol in the fuel tank from oxidisation that occurs when sat for long periods while also minimising any. ETBE Ethanol isoButanol TAME TAEE and Tri-Methyl pentane all have AKI octane of 100 or greater and are currently blended with unleaded gasoline to used to replace lead based antiknock compounds.

The others are suitable for gasoline but are either extremely toxic or much too expensive to synthesize for a motor fuel. BERKEBILE 22 LEAD SUBSTITUTE. Due to EPA reduction in gasolines engines failure due to valve seat recession can occur in as little as 20 hours under stress conditions.

BERKEBILE 22 LEAD SUBSTITUTE replaces lead as a lubricant in gasoline to control the wear of valve seats without the harmful effects on the environment. Prevents valve seat damage in engines designed for leaded gasoline. Prolongs the useful life of older engines without updated valve seats.

Also cleans carburetor deposits and injectors safe for catalytic converters. For racing marine or off-road use only. Old gasoline engines dont need lead or lead substitutes to keep them healthy.

Thats urban legend stuff. In 1975 when new cars had catalytic converters and required unleaded fuel the engines started being built with hardened valves. The hardening was needed to compensate for the lubricantcushion effect that the lead once provided.

A lead-free formulation replaces lead protection for older engines designed to use leaded gasoline which can help prevent excessive valve seat wear and extend engine life. For automotive farm and marine engines. If used with each fill up it can help maintain power and acceleration and help reduce exhaust emissions.

I have to use lead additive in my non-HAMB mini because the heads are on the soft side on some Brit cars. But I think there are differences in each lead substitute something to do with the chemical they use. Some have to be used with every tankfull.

The one I use only has to be added every 1600kms Canadian brand. Carlube Lead Substitute supersedes potassium-based Nitrox 4 Star Lead Treatment and manganese-based 4 Lead Substitute and Octane improver. This additive is said to prevent engine knocking and pinking in addition to preventing power loss due to.

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Filters and Manufacturers Warranties. November 14 2011 Scott 43 comments. Today I found out why lead used to be added to gasoline.

Tetraethyl lead was used in early model cars to help reduce engine knocking boost octane ratings and help with wear and tear on valve seats within the motor. Due to concerns over air pollution and health risks this type of gas was slowly phased out. Lead Substitutes by Mike Schordine.

Lead was originally added to gasoline as an upper cylinder lubricant. It lubes the valves and seats. If you rebuild the motor you could use hardened seats and valves and unleaded fuel.

But if your old tractor runs good a simple lead substitute added to the gas is a perfectly reasonable solution. A lot of people with older collectible cars want to know if they have to use a lead substitute in the gasoline they use in their cars. Well maybe maybe not.

Now what did the lead do. Well the first thing that the lead did in the engines of these older cars was that it raised octane. Lead in the form of tetraethyl lead was an integral part of the blending of gasolines between the 20s and 70s.

It boosted octane ratings and. Tetraethyllead abbreviated TEL is an organolead compound with the formula CH3CH24Pb. It is a petro-fuel additive first being mixed with gasoline beginning in the 1920s as a patented octane rating booster that allowed engine compression to be raised substantially.

This in turn caused increased vehicle performance and fuel economy. TEL had been identified chemically in the.