What Is Amsoil Saber 80:1 Mix? (Fuel Mix Chart)
AMSOIL SABER 80:1 mix means 80 parts gasoline to 1 part two-cycle oil. That equals 1.6 US fluid ounces of oil per gallon of gasoline, or 12.5 milliliters per liter. Use this ratio only if your equipment maker allows it. Your engine manual takes priority over an oil’s advertised mixing capability.
The wrong fuel ratio can turn a quick refuel into costly engine damage. The key point is simple: SABER oil does not make every two-stroke engine suitable for 80:1. Check the equipment manual first, then measure the fuel and oil accurately.
What does AMSOIL SABER 80:1 mean?
An 80:1 ratio describes the amount of gasoline compared with two-cycle oil. For every 80 equal parts of gasoline, add 1 equal part of oil. In practice, the chart below gives the oil amount for a measured volume of gasoline.
Two-cycle engines use oil mixed into the fuel for lubrication. The fuel carries that oil through the engine as it runs. An 80:1 mix contains less oil than a 50:1 mix, so it is a leaner oil-to-gas ratio.
The ratio does not describe the gasoline’s octane, the oil used on a chain and bar, or a carburetor setting. Those are separate requirements. Follow the equipment maker’s fuel instructions, including its limits for octane and ethanol.
AMSOIL SABER 80:1 fuel mix chart
This chart shows how much oil to add to a measured volume of gasoline to make an 80:1 mix. US amounts use fluid ounces, not weight ounces. Metric amounts use milliliters and liters.
| Gasoline | SABER oil for 80:1 |
|---|---|
| 1 US gallon | 1.6 US fl oz |
| 2 US gallons | 3.2 US fl oz |
| 2.5 US gallons | 4.0 US fl oz |
| 5 US gallons | 8.0 US fl oz |
| 1 liter | 12.5 mL |
| 5 liters | 62.5 mL |
| 10 liters | 125 mL |
The calculation is straightforward: divide the gasoline volume by 80, using the same units for both amounts. For example, 1 gallon is 128 fluid ounces. Divide 128 by 80, and you get 1.6 fluid ounces of oil.
For a metric batch, divide 1,000 milliliters by 80. That gives 12.5 mL of oil per liter of gasoline. Use a marked measuring tool that can show small amounts clearly; estimating by eye can produce the wrong ratio.
Worked mixing examples
These examples show the arithmetic, not permission to use 80:1 in a particular engine. Confirm the ratio in the equipment manual before mixing.
- One gallon: Measure 1 gallon of gasoline and 1.6 fl oz of oil.
- Two gallons: Measure 2 gallons of gasoline and 3.2 fl oz of oil.
- Five liters: Measure 5 liters of gasoline and 62.5 mL of oil.
If the manual specifies a different ratio, use that ratio instead. Do not adjust the amount based on guesswork, engine age, or how the equipment sounds.
Can I use 80:1 in my chainsaw or other two-stroke equipment?
Use 80:1 only when the equipment manufacturer permits that ratio for your specific engine. Many chainsaws specify 50:1, but requirements vary by model. A lubricant’s ability to work at a leaner ratio does not override the saw’s manual or warranty terms.
Look in the operator’s manual for the required fuel-to-oil ratio and the gasoline specifications. If the manual is missing, check the equipment maker’s official model information or ask an authorized service provider. If you cannot confirm the required ratio, do not fill the tank with 80:1.
A ratio mistake can reduce lubrication in an engine that needs a richer mix. That may contribute to piston or cylinder scuffing, or engine seizure. Stop and verify the requirement rather than treating a general oil recommendation as approval for every machine.
Example: If a saw manual says 50:1, do not substitute 80:1 unless the saw’s manufacturer explicitly approves that change. The oil brand alone is not enough to establish compatibility.
How to mix SABER 80:1 fuel correctly
Accurate measuring and clean handling help you avoid a ratio error. Use a fuel-approved container, follow the equipment and fuel makers’ directions, and label the finished mix. Prepare only a quantity you can use within the storage guidance for your equipment and fuel.
- Confirm the required ratio. Check the manual for the exact engine model. Also check gasoline octane and ethanol limits.
- Choose the batch size. Use the chart to find the matching oil amount. Do not mix units, such as gallons and milliliters, in one calculation.
- Measure carefully. Use a fuel-safe container and a measuring tool suited to the small oil volume. Avoid kitchen containers.
- Combine and mix. Add the gasoline and oil as directed by their labels, then close the container and mix thoroughly.
- Label the container. Mark it with the ratio and date so no one mistakes it for straight gasoline or another blend.
- Refuel safely. Follow the equipment manual and fuel-container directions. Keep fuel away from ignition sources and avoid spills.
Never run straight gasoline in an engine that requires premix. If you accidentally add the wrong fuel, do not start the engine; consult the manual or a qualified service provider for the correct next step.
What 80:1 does—and does not—tell you about a chainsaw
The 80:1 figure applies only to the gasoline-and-two-cycle-oil mixture. It does not specify bar oil, chain fit, chain tension, or carburetor adjustment. These separate items matter for safe operation, but each has its own instructions and specifications.
Before cutting, check the saw manual and inspect the machine. Confirm that the chain’s pitch, gauge, and drive-link count match the bar and sprocket. Check chain tension, cutters, bar rails, controls, and the chain brake. Fill the bar-oil reservoir with the specified chain-and-bar lubricant; it is separate from fuel mix.
Follow the saw’s starting steps, including its cold- or warm-start procedure. Engage the chain brake during starting if the manual directs you to do so. Before cutting, confirm stable idle and chain-oil delivery as described in the manual.
Use a sharp, correctly tensioned chain and keep a secure stance. Avoid contact with the guide bar’s upper nose area, which can cause rapid rotational kickback. Plan the work area, escape routes, drop zone, and bystander exclusion zone. For hazardous tree work, use a qualified tree-care professional and follow applicable safety rules.
Common 80:1 mistakes, storage, and service
Most problems come from assuming a ratio is universal, measuring carelessly, or confusing fuel mix with chain oil. Keep the manual, fuel container, and oil label aligned: the engine maker sets the required ratio, while the oil label gives product directions.
| Situation | Safer action |
|---|---|
| Manual specifies 50:1 | Use 50:1 unless the equipment maker explicitly approves another ratio. |
| Required ratio is unknown | Do not refuel with 80:1; confirm the model’s requirement first. |
| Oil amount is hard to measure | Make a smaller batch or use a suitable marked measure. |
| Someone calls for “bar oil” | Treat it as separate from two-cycle fuel oil. |
| Engine needs carburetor adjustment | Use model-specific limits; have a qualified technician check it with a tachometer. |
Store premix in an approved, sealed, clearly labeled container. Follow the fuel and equipment makers’ storage instructions and local fire-safety rules. For extended storage, prepare the fuel system as the manual directs.
Before putting a stored saw back to work, inspect its chain brake, chain tension, bar, and fuel lines. Check the air filter, cooling fins, bar groove, and sprocket area as part of the manual’s maintenance steps. Do not raise maximum engine speed to compensate for poor cutting; use the model-specific limit and seek qualified service if needed.
Frequently asked questions
What is the exact AMSOIL SABER 80:1 mix?
It is 80 parts gasoline to 1 part two-cycle oil: 1.6 fl oz per US gallon, or 12.5 mL per liter.
How much SABER oil goes in 5 gallons of gas?
For an 80:1 mix, add 8 US fluid ounces of oil to 5 gallons of gasoline, if the engine maker allows that ratio.
How much oil goes in 5 liters of gasoline?
Add 62.5 mL of oil for an 80:1 mix, provided the equipment manual permits it.
Can I use 80:1 in any two-stroke engine?
No. Use it only when the equipment manufacturer approves 80:1 for that engine.
My chainsaw manual says 50:1. Can I use SABER at 80:1?
Do not do so unless the chainsaw manufacturer explicitly approves 80:1. Follow the manual’s ratio.
Is 80:1 the same as bar-and-chain oil?
No. It is the fuel-to-two-cycle-oil ratio. Bar-and-chain oil goes in a separate reservoir.
Can I estimate the oil instead of measuring it?
No. Measure it accurately. A small error can change the mix ratio, especially in a small batch.
What if I cannot find the required ratio?
Do not guess. Check the model’s manual or official manufacturer information, or ask a qualified service provider.
Does 80:1 tell me how to tune the carburetor?
No. Carburetor settings and engine-speed limits are model-specific and should come from the equipment maker.
What should I do if I mixed the wrong ratio?
Do not rely on the mix until you verify it. If it is already in the equipment, consult the manual or a qualified service provider before running the engine.
The practical rule is to confirm the engine’s required ratio first, then measure the mix from the chart. If the manual does not approve 80:1, do not use it.
(This article was written by one of our staff writers, Evan Bradley. Visit our Meet the Team page.)
