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

I have zero reasons to watch your videos, however, I am riveted to the content!

In my opinion no considerable conclusions can be taken unless ignition advance and fuel jet size are tuned up to match the fuel explosion speed and proper air/fuel ratio.

Look at that build-up on the old lawnmower. No wonder old cars use to wear out so fast.

Would you test sinto octane 130 gas aditive? Im wondering if its even worth putting in gas to improve power in any way

I enjoy your content...and especially like the fact you are NOT Sponsored by any products...makes your comparisons credible.

Did you enjoy the sweet 100LL smell better than the "Kerosene Smell" of Jet Fuel? ... (in MN Kerosene is so highly taxed and hard to find off highway "dyed" Kerosene, that many of us with torpedo heaters go to the airport and buy Jet-A for half the cost of typically available undyed Kerosene.)
When Non-Oxy (for My collector cars and ATVs) was so expensive and hard to find in mid 2000's ... I remember buying 100LL for cheaper and was able to advance ignition timing on my collector cars and get considerably better MPGs too...

need to try some race fuel that vp fuel make

just do a video about which is more carcinogen. leaded or unleaded.

Id like to see you do a video on plastic epoxys. Plastic to plastic

Instead of aviation fuel try actual leaded race fuel....or even better oxygenated fuel is always a good one to lol

Kind of a stupid test. As aviation fuel is made for a different purpose than the gas we use. The lead is to help engine to achieve higher compression such as an aircraft engine. The reason the lawn mower ran a little ruff is because the aviation fuel ignites a little later than regular gas. So you're getting a little ignition knock. Under a the high compression of an aircraft engine regular gas would ignite prematurely and give you a ignition knock. Both scenarios throws the timing off. I would never use regular gas in an aircraft or aviation fuel in my car or small engines such as a lawn mower. In the old days hot rodders use to use aviation fuel in their cars and advanced the timing and it did give them more power. But that was easier to do back then. Cars are a little more tricky now days.

For rotary it doesn't really matter. But for ohv engines yes the led lubricates the lifters and valves.

Lots of us run Avgas on the race track.

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

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

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

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

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 proficiency.my 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.

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.

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

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.

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.

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...

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.

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

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.

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

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

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

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

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

No bottom line results? Gee, thanks.

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.

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

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.

nice property

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.

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%.

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.

420cc generator, eh? B-)

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.

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.

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

Id like some lead for my gasoline bicycle

I could drive that thing back and forth all day

Why does tht piston have a nik in it ?

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.

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.

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