Fuel mixing octane calculator

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Fuel mixing octane calculator

Thanks for visiting Consumerist. As of OctoberConsumerist is no longer producing new content, but feel free to browse through our archives. Here you can find 12 years worth of articles on everything from how to avoid dodgy scams to writing an effective complaint letter. Check out some of our greatest hits below, explore the categories listed on the left-hand side of the page, or head to CR. But how much of each do you use to get the right blend?

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Just enter in the 3 different octane ratings and their prices. Then say how much you want to spend or how many gallons you want to buy. Gas Blend does the math for you and tells ya. The only difference between the two blends is their octane content. Proof of Two-Pump Method 4. Most cars, except those whose engines are specially designed for premium gas, will do just fine with regular gas.

But some engines are geared for mid-range. Also, some older engines that used to be fine with regular gas will start knocking unless the higher octane mid-range is poured in. Want more consumer news? Visit our parent organization, Consumer Reportsfor the latest on scams, recalls, and other consumer issues. Part of. Welcome to the Consumerist Archives Thanks for visiting Consumerist. Related outdoor power equipment.Log In. Pat, Thank you for clarifying my synonym statement. I made the poor assumption that the MSDS would only list the correct synonyms.

OK Evelrod, I can't take it anymore, I'll chime in here. You can look at xylene, it's 2 isomers and all the other common hydrocarbons there too. You can also look at this excellent site for more non marketing based information on toluene, xylene, benzene, trimethyl benzene, and all the other high octane hotties used in internal combustion fuels.

Both chemicals are common components in regular gasoline. Too much xylene of one isomer may also crystalize out of the mix at lower temperatures with obvious results. Both toluene and mixed xylene are available at your favorite local industrial chemical supply store should the "need" arise.

Each tanker can vary substantially depending on where the crude oil was sourced. All the aromatic hydrocarbons which include toluene and xylene are heavy soot formers especially when running rich and at lower combustion temps so beware. Theres more that comes out the pipe, loads the engine oil, and, gunks up the combustion chambers than CO2 and H2O when you use too much of it.

Gasoline blending isn't that easy. If it was, we would all be doing it!!! Happy New Year and happy reading. I hope this is helpful. Good to see you back. Yeah, Chumley. Greg and I have wondered how long it would take to get you back. Glad to hear from you. Now you can post a short bio in your profile so we can better know where your "AT". I should have dusted of the old chemistry books before shooting off my mouth.

Chumley Thank you for the very helpful and informative post. Thank you for the raw facts, especially about the difference between toluene and toluol. I smelled and burned both and seen the distinction since I was a young kid, so I knew they were at least structurally different, but I never researched it until now. I'm running a blend. I'm at I've noticed amazing difference between a piston car at 8.

Also, huge diff with RPM. At this stroke, I like the longer burns. I'm wondering if a lithium suspension is bad for my sensors and cat. Caution me if I'm risking something. Oh, of course I don't use this on public roads wink. Sorry jhillyer I am a polymer chemist re plastics not a fuel chemist.

There are some overlaps re the fact that most plastics are based on oil feedstock, but I do not have detailed knowledge of the finer points of fuel formulation, other than some anecdotal evedience, a lot of years hotrodding, a general knowledge of related chemistry, and what I read here.Ethanol is a monomolecular compound with narrow boiling range.

Ethanol is aromatic- olefin- and sulfur-free compound. Thus, ethanol may improve gasoline composition by dilution effect. Most modern cars equipped with closed-loop control system can compensate leaning effect of gasoline containing low concentration of ethanol.

fuel mixing octane calculator

Hydrogen to carbon ratio of ethanol is 3. Typical properties of ethanol together with the selected requirements and recommendations are shown in the following Table. Table 1. Complete requirements and standards are available from respective organizations. Octane numbers of low-molecular mass alcohols are high, and therefore they have been even used as octane boosters. The high octane numbers of ethanol could enable optimization of engine to increase the thermal efficiency. However, even special cars for ethanol use FFVs are still being a compromise to dedicated ethanol cars.

Kalghatgi observed that knock sensor equipped cars performed better when using fuels with lower MON for a given RON.

Ethanol increases octane numbers of the front-end distillation range of gasoline. Ethanol forms azeotropes with hydrocarbons of gasoline, which impacts volatility. Blending vapor pressures for alcohols are significantly higher than their nominal vapor pressures. Vapor pressure of neat ethanol is low at only 16 kPa Owen and Coley Vapor pressure of blends can be adjusted by using base fuel with low vapor pressure.

If strict fuel specifications are to be met, this rules out the possibility of so-called splash-blending of ethanol. In some regions, higher vapor pressures are allowed for gasoline-ethanol blends, if they contain ethanol. One notable point regarding the vapor pressure of ethanol blend is its tendency to increase more quickly than that of gasoline with increasing temperature. This phenomenon is illustrated in Figure 2 Tanaka et al. Figure 1. Vapor pressure of mixtures increase at low blending ratios, but then gradually declines Furey Each engine type is designed to run on a specific gas-to-oil mix ratio.

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Two-cycle oil is available at most major retail stores, automotive supply stores. Do not follow any instruction on the oil package that says otherwise. Then slowly add the correct amount of gasoline. Do not try to mix the gas and oil directly in the gas tank of the equipment. The chart below shows the correct amount of oil per gallon that each mixing ratio requires. Back To AnyCalculator. The short answer is That is 50 parts gas to 1 part oil.

Most outboard motors run this mix.

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Some very small outboards tell you but I recommend you run The logic here is that I would rather replace an occasional spark plug then blow up the motor. The decision is yours but that is my 2 cents.

Some older outboards 50's, 60's and some older recommended mixtures as oil rich as Oil has changed alot since those days. I leave it up to you to decide in these cases. Mixture chart for ratio 1 gal gas to 2.

The most common practice is to mix 1 pint 16 oz to the 6 gallons of fuel that they hold. The most common moped, or "liquor sickle", out on the market contains a two-stroke cycle engine.

Check your moped's owner's manual for the correct gas to oil ratio. Although moped manufacturers may differ, the most common ratio is The general ratio for most two-stroke chain saw combustion engines isthough some manufacturers recommend The larger number represents the amount of gasoline, while the smaller is the amount of oil needed. If you are treating 1 gallon of clean unleaded gasoline, a ration translates to 2.

Use the same type of container designed for gasoline storage, measure correctly and mix the fuel completely before filling your chain saw.

How To Turn Regular Pump Gas Into Higher Octane Race Fuel

It's best to use the premixed gas within a few days and to shake it well anytime it's been sitting for a while to redistribute the oil completely into the gas. The fuel-oil mixture ratio for all Weed Eater products is You can obtain this ratio by mixing 3.

Over a period of time oil will separate from gasoline. To properly insure oil and gas mixture, we recommend thoroughly shaking your oil and gas mixture before refueling your unit.

All Weed Eater two-cycle products require oil to be added to the gas. Never use straight gas in a two-cycle engine as straight gas will ruin the engine within minutes. Is your oil injection tank still in? That tank must remain in the ski. Even going premix, it supplies oil to the rotary chamber The premix ratio is 40 or Any other oil will blow your motor. Keep in mind the ratios the manufacturers recommend are for a high performance dirt bike that is designed to race at its full capacity.

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If you have skills like Ryan Dungey and you ride your bike at full noise most of the time you need the recommended petrol to oil mix to keep the piston and rings properly lubricated. On the other hand, if you are just pottering around and spending most of your bikes time in the low to mid revs range, that extra oil is probably an overkill and not entirely needed.Forums New Posts Trending.

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For a better experience, please enable JavaScript in your browser before proceeding. E30 mixing chart. Thread starter Alex Stratified Start date Nov 19, Trader history for Alex Stratified 0 1 2 Next. Alex Stratified Member Vendor. Nov 19, Messages Likes Location Richmond. E30 fuel mixes are a great thing to have.

Maximizing performance without knock while still keeping the stock fuel system within reasonable operating bounds and not having to worry about gumming up the high pressure fuel pumps.

We have a lot of customers using these mixtures with our tunes and we are often asked how to maintain the mixture in the tank. Because not everyone goes right to empty before filling up and few people have an ethanol sensor installed, we created a table that shows how to maintain the E30 blend when filling up with different amounts.

Keep in mind that this table is correct when using E10 pump premium fuel most common and E85 fuel. Keep this little chart in your phone for reference.

This chart tells you how much E85 to mix with 93 at the time you are filling to achieve the E30 mixture. If you are filling with E85 for the first, time, the total amount you are filling is the size of your tank. Messages 3, Likes 1, Location Fairview Heights. Pretty good little chart. That number is how much fuel you can put in to get very close to full without distorting the blend.

It sounds complicated, but it's really quick and simple math. Once you have your Em, round it down. Take that number and refer to this nifty little chart.Outboard engines, leaf blowers, weed trimmers and other equipment with small engines often have a 2-cycle, also known as 2-stroke, engine. If the engine has a single fill port for both engine oil and gas, it is a 2-cycle engine that requires a specific mix of oil and gas to function properly.

The mixture of gas and oil is written as a ratio that represents the parts of gasoline and the parts of oil. Most outboard motors require a ratio. There are some gas stations that sell ethanol free gas. Check out google or equivalent in your area to find them. This gas is much better but you may also need to add a little octane booster since many only sell 87 octane ethanol free gas.

It depends on what your recommended ratio is. Theses are our recommendations though: For a ratio of gas to oil, use 2. For a mixture, use 3. For a mixture, use 4 fluid ounces of oil per gallon of gas.

fuel mixing octane calculator

Skip to Main Content. Search for: Search Now. Customer Service: 1. Back to Blog. What Is the Right Ratio The mixture of gas and oil is written as a ratio that represents the parts of gasoline and the parts of oil.

How to Create the Oil Mix Pour the correct amount of 2-stroke oil into a clean gas can.

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Add the correct amount of gasoline. Stir or shake the container to mix the oil and gas.

fuel mixing octane calculator

Use the mixture within 30 days or add fuel stabilizer to extend the shelf life. Important Warnings Do not use automobile motor oil, which contains noncombustible additives that will damage your engine; only use 2-cycle engine oil. Do not use gasoline with more than 10 percent ethanol, which attracts moisture, causes gasoline to break down and can lead to engine damage.Tortured Poet (3) odds 3.

Octane Mixture Calculator

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Fuel & Oil Mixture Chart - Two-Cycle Engines

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