Need help with a math problem.

[Chris142]

I have always been terrible with math. Had the same math book from 6th grade till I graduated high school!

I bought a diesel fuel addative. It is in a 32oz jug. It treats 250 gallons.

How much do I add to my 20 gallon fuel tank?

 

[Spartanfool]

I have always been terrible with math. Had the same math book from 6th grade till I graduated high school!

I bought a diesel fuel addative. It is in a 32oz jug. It treats 250 gallons.

How much do I add to my 20 gallon fuel tank?

One ounce treats 7.81 gallons, so right about 2.5 ounces.

 

[skyactiv]

2.56 ounces or 2.5 ounces per 20 gallons.

 

[MParr]

2.56 Oz.
That’s a little over 5 Tablespoons

 

[PWMDMD]

Can setup a proportion - 32oz/250g = Xoz/20g


Just cross-multiply and solve for x = 2.56oz

 

[Chris142]

Thanks! I don't see how that small amount can do much.

 

[Rand]

even easier way is to just divide it by 10 to get a rough idea.

3.2oz per 25gal.

1000:1 ratio.

1oz per 1000oz or as mentioned 1oz per 7.81gal (128oz in gallon) 1000/128 =

 

[Warstud]

https://www.calculatorsoup.com/calculators/math/fractionssolvex.php

Go to the link and put in 32 = 250
.............................................X = 20 and hit calculate and x=2.56

 

[ecotourist]

Easy Peasey;

20/250 X 32 = 2.56 oz

 

[Gimpy1]

And this is a perfect example of why the US needs to adopt the metric system and dump the most illogical, confusing, and outdated measuring system. I' m sure out great neighbors to the North would agree.

 

[jhellwig]

And this is a perfect example of why the US needs to adopt the metric system and dump the most illogical, confusing, and outdated measuring system. I' m sure out great neighbors to the North would agree.

The math is the same.

 

[Gimpy1]

The math is the same.

I know the math is the same.

 

[y_p_w]

(20 ÷ 250) x 32 oz = 2.56 oz

Close enough is probably good enough.

 

[Trav]

And this is a perfect example of why the US needs to adopt the metric system and dump the most illogical, confusing, and outdated measuring system. I' m sure out great neighbors to the North would agree.

Agree 100%! Get rid of that horrible crap and join the rest of the world, it is so much easier to work with.

Only three countries – the U.S., Liberia and Myanmar – still (mostly or officially) stick to the imperial system

Perfect example. A cylinder with 98.5mm with an 0.5mm over bore is 99mm, do the same in SAE 3.878 inches with 0.019685 over bore.

 

[jhellwig]

Agree 100%! Get rid of that horrible crap and join the rest of the world, it is so much easier to work with.


Perfect example. A cylinder with 98.5mm with an 0.5mm over bore is 99mm, do the same in SAE 3.878 inches with 0.019685 over bore.

The math is the same.......

The only difference is the imperial units have stupid multipliers that are different for every unit conversion instead of being base 10 like everything metric.

But the all those metric people who think their measurements are superior get into the electrical world and mess everything up by using units of measurement that make you have to remember more stupid multipliers to get numbers that have actual meaning.

Then again when you get into any precision in SAE units it is back to base 10 measurements. Unless you are making a hole then you go back to fractions.....or arbitrary numbers.....or letters...... But we could also go to projectiles that are measure in gauges that are different that the other gauges we use or calibers.

 

[Drosselmier]

And this is a perfect example of why the US needs to adopt the metric system and dump the most illogical, confusing, and outdated measuring system. I' m sure out great neighbors to the North would agree.

Correct. I agree. It may take a while to get used to .

 

[JC1]

Agree 100%! Get rid of that horrible crap and join the rest of the world, it is so much easier to work with.


Perfect example. A cylinder with 98.5mm with an 0.5mm over bore is 99mm, do the same in SAE 3.878 inches with 0.019685 over bore.

Yes when the US changes the speeds in the interstate to read maximum 100 what happens for the first month?

We still have some things in imperial up here like wood etc. Not like we can make a clean break to being 100 pct metric since you are our largest trading partner.

 

[PWMDMD]

Correct. I agree. It may take a while to get used to .

Anyone with any science training already uses it and since it’s units of ten…it’s super easy. Keep miles though…they would be difficult.

 

[Gimpy1]

Agree 100%! Get rid of that horrible crap and join the rest of the world, it is so much easier to work with.


Perfect example. A cylinder with 98.5mm with an 0.5mm over bore is 99mm, do the same in SAE 3.878 inches with 0.019685 over bore.

For the rest of the world it is very easy, for most Americans its very hard. When I was living in Mexico City our daughter had a fever so my wife called the school and told them that our daughter had a 103 (F) degree fever. Well you can imagine the schools response and i had to call my wife and explain to her not to use the US system because she jut told the school that our daughter was boiling. She never could figure it out.

 

[Blinker]

I love how this started out as a simple request for a product dosage ratio, and here we are talking about SAE vs Metric.