Is Leaded Fuel better than Unleaded? Let's find out!

  • Published: 12 August 2019
  • Is leaded fuel better as than unleaded gasoline? 100 octane low lead aviation fuel (100LL avgas) is tested in several engines: Wankel rotary, see through piston engine, fuel injected generator, small engine for lead build up, and Predator 212 for top speed performance. A special thanks to Matt from the Warped Perception YouTube channel for loaning his rotary engine to me! Please check out his channel. His videos are absolutely amazing!!! Also, thanks to all the viewers that requested this video. Thank you very much for supporting the channel by watching the commercials and through Patreon support.

    This video is only for entertainment purposes. If you rely on the information portrayed in this video, you assume the responsibility for the results. Project Farm LLC
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Comments • 4 670

  • ben hager
    ben hager  1 hours back

    Of course it's not better. Mechanical function has nothing to do with opinion. 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. Improvements in engine design, and better materials made lead something no longer needed. The title to the video is to generalized. "Is leaded fuel better than 87 octane in an antique Ford flathead engine with high compression pistons and original valves" , would have been a better title, since the question is specific to a certain engine, design, and specs. The title as it is makes it sound as if they can be compared as a matter of preference with no regard to application, giving uneducated audiences the impression that you may simply just prefer one over the other. One is not better than the other. It's like asking if a 10mm wrench is better than a 12mm wrench. Well if I need to loosen or tighten a 12mm bolt, then the 12mm is obviously better because it's made for that specific application that I need it for. 10mm wrenches were not designed to fit 12mm bolts. One is not better than the other, they are each made for specific things. It's a silly question I think.

    • Tristan Mackey
      Tristan Mackey  4 hours back

      Today we're going to test ghost fuel vs regular gas. Lots of people claim that their engines produce more power and last longer using ghost fuel. Of course, ghost fuel releases howling specters when burned, causing souls of the damned to pour into our world, leaving ruin and madness in their tortured wake. Here's how we'll do the test...

      • Drew N
        Drew N  16 hours back

        Before the catalytic converter, lead was used as an octane booster and valve lubricant. Amaco was the first brand to have all grades of gas unleaded.

      • SuperAfranks
        SuperAfranks  19 hours back

        What? I can't wash my hands in benzine since I retired from the Firestone factory.

      • Ryan Toomey
        Ryan Toomey  21 hours back

        Leaded fuel will ruin your catalytic converter as well as spark plugs, but is perfect to run in non-catalytic converter engines as aviation fuel has no ethanol and does not go bad like regular gasoline!

        The reason why aviation fuel ran richer in the go-cart was because it designed that way to provide better cooling for air-cooled aircraft engines (richer fuel mix makes engine run cooler). It also made the go-cart run faster because it is higher octane and provided more horsepower, that is why they run high-octane fuel in race cars.

      • Tank_Too _Godly
        Tank_Too _Godly  21 hours back

        The speed will be the same because of gearing the av gas should run hotter and a stronger spark

      • Roy Weinkauf
        Roy Weinkauf  24 hours back

        saw a similar comment on one of your vids, would love to see you try a GEET engine setup

      • Danny Wilson
        Danny Wilson  1 days back

        I have a 73 Ford pickup original engine and it has to have leaded fuel in it

      • Bobdodge
        Bobdodge  2 days back

        what the heck!! Not suppose to use AV gas a skin cleanser?
        What am i going to use now???

        • mike cubes
          mike cubes  3 days back

          did you ever do a test to see if ethanol gas will unfreeze a fuel line that has ice in it? its alcohol so would ethanol work better than isopropyl gas line antifreeze? or will ethanol gasoline keep water from freezing in your gas line? just an idea

        • S H
          S H  3 days back

          No bottom line results? Gee, thanks.

        • Jim Addison
          Jim Addison  3 days back

          For something you may not know, high octane fuel does NOT mean more power. It's actually less power. High octane fuel is for high compression engines to prevent pre ignition. Put high octane in a car that calls for 87 octane, and you'll have a car that runs bad.

          • knight0334
            knight0334  3 days back

            Lead is better if you have an older engine with non-hardened valve seats.

          • William Vaughan
            William Vaughan  3 days back

            Air fuel ratio corrected av gas has more energy content than v10 however ave gas is designed for high compression engines and is poorly suited for engines designed to run on v10 pump gas engines.

          • David Stoughton
            David Stoughton  3 days back

            nice property

          • Dillan Geiser
            Dillan Geiser  3 days back

            Hey project farm does mixing synthetic and non synthetic oils , because of a leaking engine, and bringing oil pressure to running level lubricate less than either alone. In other words is mixing oil brands and synthetic not synthetic (mostly)dangerous.

            • Project Farm
              Project Farm   3 days back

              Thank you. I have a video on mixing them

          • kobi bobi
            kobi bobi  4 days back

            I am watching your fantastic videos. Looks like head cylinder and components cleaning abilities depend on temperature. I think the higher temperature in lowest RPM is the key in 80%.

          • mbsnyderc
            mbsnyderc  4 days back

            There both gasoline and the difference in how they run has nothing to do with there being lead in it more likely the lack of alcohol in the fuel the more alcohol the richer you have to run the engine.

          • rtyuik7
            rtyuik7  4 days back

            420cc generator, eh? B-)

          • XC
            XC  4 days back

            100LL is formulated for high altitudes at a pretty steady rpm for long periods of time. You gain nothing by running it in ground based engines and it's still toxic.

          • Bob Car
            Bob Car  4 days back

            WARNING: Seriously important advice on wearing nitrile, latex or any stretchable gloves while using a drill press or any high torque drill or wire wheel - DON'T DO IT! - Even a tap of a stretchable glove on a spinning wheel, especially one with cutting edges (drill bit) or scraping edges (wire wheel) can suck your gloved hand around that spinning surface and break your hand or fingers and even remove them. The action is so fast you won't have the time to pull back. The more durable the glove the less likely it will tear off your hand and the more likely it will draw your fingers around the spinning drill bit. Especially the durable black nitrile "mechanics" gloves.

          • Stalin
            Stalin  4 days back

            Well, we know which one is better for every living thing.

          • ‍1marcelfilms
            ‍1marcelfilms  4 days back

            Id like some lead for my gasoline bicycle

            • Lewis Johnson
              Lewis Johnson  4 days back

              I could drive that thing back and forth all day

            • Maliki Higgs
              Maliki Higgs  4 days back

              Why does tht piston have a nik in it ?

              • Project Farm
                Project Farm   4 days back

                It comes from the factory like that. Thank you

            • mark campbell
              mark campbell  4 days back

              Back in the late 80s I worked on the civilian side of a military airbase, we had 3 fuel trucks with 100LL. Every morning we had to drain 5 gallons of fuel out of each tanker, (helped reduce any water build up) back then we dumped it in what basically was just a hole in the ground.
              I used to run my old 69 truck on it, and an old 68 harley. Never did run them on it straight, but at about 75% 100LL- 25% cheapest unleaded I could find.

            • Andreas mathiassen
              Andreas mathiassen  4 days back

              I found metal shavings in my scooters oil, can you tell me what I am supposed to do here? Also the scooter seems to have trouble running smoothly now.

              • Andreas mathiassen
                Andreas mathiassen  4 days back

                @Carson Prince I think I flooded the engine with too much oil. Don't know how to resolve the issue.

              • Carson Prince
                Carson Prince  4 days back

                It could be an issue of lubrication if you are finding metal shavings in the oil. Check for any leaks or low oil first. How old is the oil too?

            • fox 6
              fox 6  5 days back

              hope u used a mask when in the room with that avgas lots of toxic shit in there

            • Rob Sherbon Jr
              Rob Sherbon Jr  5 days back

              Episode idea... how will temperature effect a bullet. Will they fire when frozen. If the FPS a different speed when frozen.

            • Rob DeWitt
              Rob DeWitt  5 days back

              I would love to see a video of 2 stroke oil comparison, some of the popular choices for 2 stroke dirt bike owners such as motul 800, amsoil dominator, maxima castor 927, motorex crosspower 2t, yamalube 2r, and belray h1r...there is lots of debate on which is the best but no real hard facts to prove this...thanks and great job with the videos

            • Larry Ehrlich
              Larry Ehrlich  5 days back

              The aviation "low lead" fuel is by no means low in lead content. It was labelled as low lead fuel when it was compared to the original higher lead content of aviation fuel. The orginal aviation fuel had a higher lead content then today's leaded aviation gasoline does.

            • geoffreyjones2000
              geoffreyjones2000  5 days back

              You make my smile muscles hurt sir... thanks

            • J.M.ヘススメヂナ

              Of course it's causing lung cancer lmao

              • TheLonesometoad
                TheLonesometoad  5 days back

                The reason the AvGas runs fat is because it is formulated molecularly to run above 3500 rpm and to run at altitude where the atmosphere is much less dense. To make a good comparison at sea level you would have to re-calibrate the A/F ratio to compensate for the atmospheric pressure increase. Also, the 100LL still has MUCH more lead in it than automobile fuel EVER had.
                Once the engine is recalibrated for the AvGas, you'd also need to run a plug about 2 or 3 heat ranges hotter than OEM spec. The reason I know this is because I used to run AvGas in my 12:1 SCR hot rod engine and did extensive research and testing to get the A/F ratios dialed in for max power and streetability. The testing you did was interesting, just not complete. Love your channel!

              • steve clapper
                steve clapper  5 days back

                How about on your lungs?

                • Richard Holland
                  Richard Holland  5 days back

                  I don't think you've done anything with a gasifier yet? (heat wood under low oxygen conditions to produce a combustible wood gas). Gasifier engines and conversions have been around for about 100 years.

                • Xj18A
                  Xj18A  6 days back

                  You should test how long the current generation of 20 year olds will run without their parents money..

                • EnTroPy
                  EnTroPy  6 days back

                  Thought leaded fuels were banned... I wouldn't say lead in the atmosphere is worth any boost in performance of any sort

                  • christopher bawden
                    christopher bawden  6 days back

                    And to think this was the norm in gasoline from the 20s to the 80s. Lead is harmful. Plus watch some of the documentaries on leaded gas that they were using ethanol to control knocking but there was no money in it so that is why lead was in gas so money could be made off of it. Money more important than people.

                    • Eric S
                      Eric S  6 days back

                      Been using avgas for years. It’s not designed to run in these engines. O2 levels are not meant for using at ground level. You need to mix it with high octane pump gas. Preferably ethanol free. That’s the magic sauce.ive had good luck at a 50/50 mix. Thanks for the great content.

                    • Bob Bowie
                      Bob Bowie  6 days back

                      The _Ryobi_ generator *didn't knock* at all- very impressive.

                      • Ryan Toomey
                        Ryan Toomey  21 hours back

                        I wouldn't expect any knock with 100 octane fuel! That is the whole purpose of high-octane, to PREVENT KNOCKING!

                    • Rodeo Clown Obama
                      Rodeo Clown Obama  1 weeks back

                      my 1972 skylark loved leaded gas

                    • Andy Asberry
                      Andy Asberry  1 weeks back

                      Unless the kart engine governor is disconnected, the speed test is invalid.

                    • iWantSomeBuns 69
                      iWantSomeBuns 69  1 weeks back

                      In my country leaded fuel is sold in cans smuggled by border

                      • iWantSomeBuns 69
                        iWantSomeBuns 69  3 days back

                        livey oone Pakistan The fuel comes from Iran

                      • livey oone
                        livey oone  4 days back

                        iWantSomeBuns 69 what is your country?

                    • Walid Al Ghamdi
                      Walid Al Ghamdi  1 weeks back

                      One day ur gonna wake up and all these little engines will be waiting for you at the side of your bed

                    • Cole Danisment
                      Cole Danisment  1 weeks back

                      Love your vids man im subd but gotta wonder do the engines head bolts and head ever wear out from exesive put together and tearapart -cole

                    • Tyler Walter
                      Tyler Walter  2 weeks back

                      That generator knows what’s up 😂🔥🍁

                      • Tyler Walter
                        Tyler Walter  1 weeks back

                        Project Farm You’re welcome! Always enjoy watching your videos it’s awesome to see creators like you on the internet. You’re one of the few that truly does real testing, nothing better than a good ol oil race 😂😂 Have a great Thanksgiving my guy!

                      • Project Farm
                        Project Farm   1 weeks back

                        Thank you for the feedback

                    • Commander Waffles
                      Commander Waffles  2 weeks back

                      The Joker would like to know where do get such wonderful toys?