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General control line discussion => Open Forum => Topic started by: kevin king on June 25, 2025, 06:34:02 AM

Title: Oil content
Post by: kevin king on June 25, 2025, 06:34:02 AM

Hi, I have a gallon of fuel that has 20% oil content. How much oil do I add to make it 23 percent? Math ain't my friend.

Title: Re: Oil content
Post by: Paul Raley on June 25, 2025, 06:44:28 AM

Quote from: kevin king on Today at 06:34:02 AM

Hi, I have a gallon of fuel that has 20% oil content. How much oil do I add to make it 23 percent? Math ain't my friend.

As an easy rule of thumb, remove 1.3 oz of fuel and add 1.3 oz of oil to increase oil content by 1% per gallon.  In your case remove just under 4 oz of fuel and add 4 oz oil. 

Title: Re: Oil content
Post by: John Skukalek on June 25, 2025, 06:47:15 AM

5 ounces

Title: Re: Oil content
Post by: John Skukalek on June 25, 2025, 06:48:55 AM

5 ounces if you don't remove anything from the gallon.

Title: Re: Oil content
Post by: Motorman on June 25, 2025, 08:55:30 AM

What happened to the great fuel calculator we use to use?

Title: Re: Oil content
Post by: Colin McRae on June 25, 2025, 09:35:06 AM

Quote from: Motorman on Today at 08:55:30 AM

What happened to the great fuel calculator we use to use?

Here it is.

For one gallon, it shows 4.8 oz of oil and 123.2 oz of 20% oil fuel to boost to 23% total oil.