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 • 4 688

  • mike cubes
    mike cubes  16 hours 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  21 hours back

    No bottom line results? Gee, thanks.

  • Jim Addison
    Jim Addison  22 hours 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  1 days back

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

    • William Vaughan
      William Vaughan  1 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  1 days back

      nice property

    • Dillan Geiser
      Dillan Geiser  1 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   1 days back

        Thank you. I have a video on mixing them

    • kobi bobi
      kobi bobi  1 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  2 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  2 days back

      420cc generator, eh? B-)

    • XC
      XC  2 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  2 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  2 days back

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

    • ‍1marcelfilms
      ‍1marcelfilms  2 days back

      Id like some lead for my gasoline bicycle

      • Lewis Johnson
        Lewis Johnson  2 days back

        I could drive that thing back and forth all day

      • Maliki Higgs
        Maliki Higgs  2 days back

        Why does tht piston have a nik in it ?

        • Project Farm
          Project Farm   2 days back

          It comes from the factory like that. Thank you

      • mark campbell
        mark campbell  2 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  2 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  1 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  2 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  2 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  2 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  3 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  3 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  3 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  3 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  3 days back

          How about on your lungs?

          • Richard Holland
            Richard Holland  3 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  3 days back

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

          • EnTroPy
            EnTroPy  3 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  4 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  4 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  4 days back

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

                • Rodeo Clown Obama
                  Rodeo Clown Obama  5 days back

                  my 1972 skylark loved leaded gas

                • Andy Asberry
                  Andy Asberry  5 days back

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

                • iWantSomeBuns 69
                  iWantSomeBuns 69  7 days back

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

                  • iWantSomeBuns 69
                    iWantSomeBuns 69  11 hours back

                    livey oone Pakistan The fuel comes from Iran

                  • livey oone
                    livey oone  1 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  1 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  1 weeks back

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

                • Mark Wallace
                  Mark Wallace  1 weeks back

                  Love the smell of race fuel and aviation fuel and yeah I know it’s not good for you could explain a lot since I grew up around race cars and now race myself lol

                • Marco Kauenhowen
                  Marco Kauenhowen  1 weeks back

                  Cool video i like it👍👍 aviation fuel smells good to😂

                • Nik
                  Nik  1 weeks back

                  Does Chemi Weld actually fix cracked heads, id love to see it and what it actually does to the head or the internals of a rad...

                • Jannie Schlüter
                  Jannie Schlüter  1 weeks back

                  I think they used lead enriched fuel to reduce knocking in older engines iirc...

                • Scott Decker
                  Scott Decker  1 weeks back

                  I wonder if pour-in "synthetic lead" is as effective as real leaded gas?

                • Raymond Ray
                  Raymond Ray  2 weeks back

                  Can you try baby oil as a lubricant?

                • Bling Status
                  Bling Status  2 weeks back

                  Neat video, but I **think the advantage of being able to use leaded avgas is that it has a lower propensity to detonation. In race cars this allows you to advance the timing and/or turn up the boost beyond what unleaded lower octane fuels can handle. If you just swap fuels, like shown in this video, you're likely to not see very much difference/benefit other than the lead deposits from the avgas.

                  This video did make me consider how do airplanes that use this fuel deal with the "extra" deposits that are constantly being put into the engine.

                • Micha Grill
                  Micha Grill  2 weeks back

                  What the heck???? Are you guys still pumping lead in the air??? At least that would explain trumps behaviour...

                  • Hell's favorite NPC #69OU812 . exe

                    Man that's one hell of a spread you got there