The information in the first area are based on 2.6 ounces of oil to different amounts of gasoline.
The information in the second area are based on one gallon of gasoline to different amounts of oil.
Either way you mix your 2-cycle fuel, you will get the same effect. If this is confusing, I hope it is not, please E-Mail me.

50:1= 2.6 oz oil to 1 US gallon of mid grade gasoline

40:1= 2.6 oz oil to .8 US gallon of mid grade gasoline

32:1= 2.6 oz oil to .65 US gallon of mid grade gasoline

24:1= 2.6 oz oil to .49 US gallon of mid grade gasoline

16:1= 2.6 oz oil to .33 US gallon of mid grade gasoline

50:1 = 2.6 oz oil to 1 US gallon of mid grade gasoline

40:1 = 3.2 oz oil to 1 US gallon of mid grade gasoline

32:1 = 4.0 oz oil to 1 US gallon of mid grade gasoline

24:1 = 5.33 oz oil to 1 US gallon of mid grade gasoline

16:1 = 8.0 oz oil to 1 US gallon of mid grade gasoline

Another way to figure your fuel to oil ratio is to determine how much fuel you want, say 2.5 gallons. To figure the ratio 40:1 for 2.5 gallons, you will need to figure out how many ounces of gas is in 2.5 gallons. 320 ounces is in 2.5 gallons. Now divide your desired Ratio (40) into 320 ounces. This will give you 8. This is the amount of oil in ounces you will need to mix to 2.5 gallons of fuel to get 40:1.

# Two cycle fuel-oil mix calculator

Enter your Fuel ratio in the box below.

:1

Enter your gas can size below.

Gallon(s)

You will need: Ounces (Oz) of oil.

HOME | Questions?

### 16 responses to “Oil Ratios”

1. I am trying to figured how much additive to add, when the ratio: is 1/2 ounce of additive to 2.5 Gals is ok, but how many ounces or milliliters do I
need for 1 Gal. of Gas

• Cowboy Rick says:

.2 ounces or 5.9 mL

2. john connell says:

i have 2.5 gal. of 50:1 in a 5 gal. can. i am putting 2.5 gal. into the same can as the 50:1 in order to have 5 gal. but i want the can to be 35:1….all 5 gal. how much oil do i need to add to make 5 gal of 35:1

• ChrisKay says:

12oz

3. john connell says:

15 gallons of 35:1 how much fuel do i add to make 50:1

• ChrisKay says:

7 gals

4. mabiki says:

If anyone is interested. 1 UK galon is 160 UK ounces ðŸ˜‰ https://infoandknowledge.com/many-ounces-gallon/

5. Bill Stump says:

A gallon size is wasteful in my situation. How much 2-cycle oil do I add (Tablespoon) to 1 quart of gasoline at 40:1 ratio?

• ChrisKay says:

a tad more than 1.5 tablespoon

6. Mike G says:

I have a leaf blower that says its 25:1 ratio. It’s a 2.5 gallon gas can. Is 12.8 ounces of 2 cycle oil correct?

• ChrisKay says:

yep

7. Tristan Drake says:

How much oil would I use, for the ratio 36:1. To 2.5 gals of gas.

• ChrisKay says:

8.889 ozs

8. John says:

Greetings, I have a 3.2oz bottle of premix (bought to easily mix 40:1 per gallon). I now need to make 50:1 mix with the same bottle. How much gasoline is needed to make a 50:1 ratio with the same 3.2oz bottle of premix? Many, many thanks!

9. ROBERT Allen says:

How many ounces of 2-cycle oil do I put in for 15 to 1 I’m trying to mix Airplane Fuel for my RC engines

10. Mark Toner says:

Lawn boy oil good for homelite chain saws? Big red super-xl at 32:1 and homelite xl-12 at 16:1. The homelite xL-12 made in 1964 and big red made in 1990.