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


Comments • 4 675

  • Jakob Thompson
    Jakob Thompson  22 hours back

    I mean, smoke with _lead in it_ isn’t very good.

  • dontlikemath -.-
    dontlikemath -.-  1 days back

    Can you get your hands on some "zip fuel"? It’s a non-carbon based fuel with a higher energy density. It’s not too friendly to the engine and more expensive. It was supposed to be used for supersonic flight

  • Geoff Hunt
    Geoff Hunt  1 days back

    Used to run a newish Honda carb genny on avgas 130L damn exhaust used to glow under load

  • Mariano Santopinto
    Mariano Santopinto  1 days back

    I’m impressed they still make leaded gasoline. Guess we will never learn

  • T c
    T c  2 days back

    I used 100 octane leaded fuel in my dirt bike', but i had to diluted it with 91octane in order for it to run more efficient in my 2stroke" over all it ran much better,i ran it in my lawn equipment it ran much cleaner,Running it concentrated didn't notice any huge opinion it runs better if you diluted it,it reduces the lead content and want interupt
    The octane that will allow the engine to run cooler and much better.

  • John A Doe
    John A Doe  2 days back

    better? don't people know or understand why lead was added to fuel in the first place? if they did they would know why "better" really isn't a consideration.
    lead was added to lower the knocking noises that an engine makes, that's it, the performance between leaded and unleaded is all down to the octane level, which has nothing to do with lead. oh and gasoline is normally adjusted to be within a set range for it's octane level.

  • Phillip Frazier
    Phillip Frazier  3 days back

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

    • Project Farm
      Project Farm   2 days back

      Other than 100LL, I can't find leaded fuel

  • walter curl
    walter curl  3 days 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.

  • ben hager
    ben hager  3 days 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  3 days 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  4 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  4 days back

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

    • Ryan Toomey
      Ryan Toomey  4 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  4 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  4 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  4 days back

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

      • jake michael
        jake michael  2 days back

        no it douse not ,ford since 1970-1 on all dash fuel gauges reads unleaded fuel. sum dashes did not mention fuel in that time like bronco or above one tun but could run on ether or but did not need lead. i have a 1972 Cleveland that has all tags and stickers most all service records and am the 3 owner has ran on non leaded gas for 25 years as it states on the dash! the lead thing was a big GM lie. the premum today 93 is only 2 to 6 points less than the old ron octane fuel in 1970 at 100! it is rated now with ron+mon/2 that is 2-6 points less in octane. and the lead would burn out mufflers spark plugs fill the engine with deposits!!!! Amico had no led premium white gas in starting in the 20s!! it was popular in the 1960s as it cleaned out the engine and fuel system. have made over 600hp on a 390 on 93 and with iron heads a crburator and the factory ignition! i know all about fuel formulations have studied it the old patients on leaded fuel talked to the old timers their in the 1960s as mechanics and racers. the best gas is hi test lead just absorbs to much water unless you get ethanol free or dive it as a day to day and will have no problems. yes the seats do ware a small bit more but the meffers go out at 40,000 mi plugs shot by 15,000 mi and lead deposits on the pistons. the auto light 124 plugs wold lode up with lead in no time! read the factory service data on that engine not the hear say in internet land. i have yet to see a 72 up require lead! look at the fuel gauge as well as service glide octane ratings will be hi do to the old rating system. 1973-1979 is a cool pick up!! not being ass but a lot of people have not played with car engines since a teen with all the old service guides to!!! . was turning wrenches in one way since i was 8! wold love to find a unicorn as ford did strange things! i have worked on lots of ford unicorns like a ft truck block with car crank and dizz to make a bullet proof fe using ft block! LOOK UP THE FUEL IN A 1973 FORD SERVICE GUIDE! LOVE TO SEE IT! TAKE CARE

      • Project Farm
        Project Farm   4 days back

        Thank you for the feedback!

    • Bobdodge
      Bobdodge  5 days back

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

      • Anthony Nelson
        Anthony Nelson  1 days back

        @Bobdodge Roger that!

      • Bobdodge
        Bobdodge  1 days back

        @Anthony Nelson wait for the ppl to chime in thinking we are serious lol

      • Anthony Nelson
        Anthony Nelson  1 days back

        @BobdodgeI believe you are correct I have bought a lot of avgas and there is no specific warning against using it for gargling on either side of the pump.

      • Bobdodge
        Bobdodge  1 days back

        @Anthony Nelson im sure gargling with it is ok... I mean there is no warning for that right!

      • Anthony Nelson
        Anthony Nelson  1 days back

        I can't use it on my hands but can I still gargle with it? I hate the unleaded after taste.

    • mike cubes
      mike cubes  6 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  6 days back

      No bottom line results? Gee, thanks.

    • Jim Addison
      Jim Addison  6 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.

      • jake michael
        jake michael  2 days back

        so right but that is to much for the mouth breather to under stand! i have on 87 ran 10:1 or more compression on a 302 ford iron heads from 1966-67 289 with a carburetor and dizzy no ping or sine of it on plugs. the key is small chamber and tight quench aka mechanical octane .it has a small solid lifter cam so it releases sum of the pressure with a 4 speed and deep gears 60 mph is 2900 rpm keeps lode off the engine the fast piston speed keeps the mix moving along with qench no ping! use 160* thermostat. the low octane and hi btu over premium gives better power at a lower cost and i get better than factory mpg even thou it is more suted for rode racing or dirt track. the key is dynamic compression and quench. all so the tune.

    • knight0334
      knight0334  6 days back

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

    • William Vaughan
      William Vaughan  6 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  6 days back

      nice property

    • Dillan Geiser
      Dillan Geiser  6 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   6 days back

        Thank you. I have a video on mixing them

    • kobi bobi
      kobi bobi  7 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  7 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  7 days back

      420cc generator, eh? B-)

    • XC
      XC  7 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  7 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  7 days back

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

    • ‍1marcelfilms
      ‍1marcelfilms  7 days back

      Id like some lead for my gasoline bicycle

      • Lewis Johnson
        Lewis Johnson  1 weeks back

        I could drive that thing back and forth all day

      • Maliki Higgs
        Maliki Higgs  1 weeks back

        Why does tht piston have a nik in it ?

        • Project Farm
          Project Farm   1 weeks back

          It comes from the factory like that. Thank you

      • mark campbell
        mark campbell  1 weeks 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  1 weeks 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  7 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  7 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  1 weeks 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  1 weeks 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  1 weeks 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  1 weeks 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  1 weeks back

        You make my smile muscles hurt sir... thanks

      • J.M.ヘススメヂナ
        J.M.ヘススメヂナ  1 weeks back

        Of course it's causing lung cancer lmao

        • TheLonesometoad
          TheLonesometoad  1 weeks 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  1 weeks back

          How about on your lungs?

          • Richard Holland
            Richard Holland  1 weeks 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  1 weeks back

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

          • EnTroPy
            EnTroPy  1 weeks 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  1 weeks 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  1 weeks 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.