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Explain Fuel Composition and Impact

5:29
16:11
1.6M views

At 5:29 in

What the BIG FUEL companies DON'T WANT you to know

What happens here

The presenter elaborates on the observed results, explaining that the residue seen on the plates (or lack thereof) directly corresponds to the quality and composition of the fuel. He categorizes fuels into four levels: standard pump fuel, non-ethanol pump fuel, engineered pre-mixed fuels (like TruFuel, Husqvarna, Echo, VP, RedMax), and alkylate fuels (Aspen and Stihl Motomix). He emphasizes that the 'dirty' residue is primarily due to aromatics (such as benzenes), which are chemical compounds present in varying percentages in different fuels. Alkylate fuels, specifically Aspen and Stihl, are highlighted for having less than 1% aromatics, leading to significantly cleaner burning.

Goal: Understand the chemical differences in fuels and their impact on engine cleanliness.

Tools and materials

  • various fuel cans/bottles RedMax MaxFuel — Visual aid for discussion, white ceramic plates with burned fuel samples Unknown used for Visual aid for discussion

What they say

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but why would you want to go with an aspen two over a steel all right this is where it can get pretty interesting you guys both steel and aspen have less than typically one percent of those aromatics that contaminate your engine but here's where the difference really comes in place now i did a quick google search and steel comes in at 8.75 roughly per quart and the aspen ii comes in at 559 per quart and when you convert that to a gallon the steel moto mix comes in at 35 a gallon and aspen ii comes in using those same numbers at 22.36 per gallon or roughly aspen two per gallon is about twelve 12.64 less per gallon for the same fuel and it's the and it's the same mix so what makes fuels dirty is the aromatics inside of the fuel and all of these engineered fuels have anywhere from 10 to 20 percent aromatics that's the benzenes that's the chemical compounds that's what you're seeing left behind so when you look at this imagine not just burning a half a capful but imagine burning a whole tank full of fuel through these things imagine what your engine is going to look like now here's something else that's pretty cool that i didn't tell you guys i got uncle tom and my cousin chris and you're an airplane mechanic here the storage life is what i wanted to talk about this fuel once you open this fuel up you know how long you can store it for two years two years you open up one of these it's starting to die off right away it dies off right away you open this up it's good for two years if you see keep it sealed it's good for five years five years sealed wow okay but now think about this if it's good for two years when you put this fuel in your trimmers your blowers you put it in anything that needs fuel your chainsaws at the end of the year you don't have to drain your fuel you don't have to drain your carbs you don't have to to do anything but just put it away raw dog just set it down set it and forget it because the fuel is just as good and it's not going to gum up your carbs it's not going to gum up anything but now it's not designed for everything this fuel is designed more for power equipment and power sports so this is designed for chainsaws gear that we guys use out in the fields or four-wheelers jet skis things like that yeah that's a lot of carbon the actual contaminants are not in the mix that's why we have four stroke in here the actual contaminants are in the bra fuel itself the fuel before the mix goes in so it has nothing to do with how they mix it and…

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