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

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  • 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. https://www.patreon.com/projectfarm

    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 • 4 675

  • Phillip Frazier
    Phillip Frazier  1 hours back

    How about leaded gasoline vs unleaded. Not aviation fuel....Can you even get it?

    • walter curl
      walter curl  4 hours back

      Could you test disc brake pads? I recently had mine changed on my Lexus (4 wheel disc brakes) and now just days after being cleaned my front wheels are black with brake dust. Didn't happen before the change .Great videos keep them coming.

      • Leiki Dragon
        Leiki Dragon  9 hours back

        The wankel engine is neat. So, I vote for wankel engine tests. and I had these extra letters so I threw them in i hope I'm not suspect. it's just a flat board of letters, how could I not?

      • ben hager
        ben hager  10 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  13 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  1 days 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  1 days back

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

        • Ryan Toomey
          Ryan Toomey  1 days 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  1 days back

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

        • Roy Weinkauf
          Roy Weinkauf  1 days back

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

        • Danny Wilson
          Danny Wilson  2 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  4 days back

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

            • William Vaughan
              William Vaughan  4 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  4 days back

              nice property

            • Dillan Geiser
              Dillan Geiser  4 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   4 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  5 days back

                I could drive that thing back and forth all day

              • Maliki Higgs
                Maliki Higgs  5 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  5 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  5 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 better...at causing lung cancer lmao

                • TheLonesometoad
                  TheLonesometoad  6 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  6 days back

                  How about on your lungs?

                  • Richard Holland
                    Richard Holland  6 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  1 days 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