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Posted: 10/28/2004 9:47:07 PM EST
[Last Edit: 10/28/2004 9:53:23 PM EST by NSFJojo]
Hey you math wizards. I didn't pass much of pre-algebra and certainly don't know how to do fancy stuff like what I'm about to ask:

I have a gas tank that is 5 gallons. I need to mix it with oil to make the proper fuel in a 30:1 ratio. If I have 5 gallons of gas in the gas tank and need to put 1 part of oil per 30 parts gas how much oil do i need to put in, in iters, quarts, pints, or whatever.


Thanks for your help, jeanesesses.
Link Posted: 10/28/2004 9:55:30 PM EST
I'm gonna take a guess(cause I suck at math also) but I think you would need 0.167 gallons of oil added to the 5 gallons of gas to make a 30:1 ratio
Link Posted: 10/28/2004 9:56:00 PM EST
[Last Edit: 10/28/2004 9:59:34 PM EST by Leisure_Shoot]
If it is for a small engine, you aren't supposed to store the gas more than a few weeks, if you can't use it all.

5 gallons gas . . 30 parts gas
--------------- = --------------
? gallons oil . . . 1 part oil

you need any of the following...
.167 gallons oil is how much you need.
or 21.376 fluid ounces
or .6680 quarts



Link Posted: 10/28/2004 9:56:29 PM EST
Just dump all the oil you got in there.


What are you putting in it?
Link Posted: 10/28/2004 9:57:13 PM EST
You need 6 gallons of gas.
Link Posted: 10/28/2004 9:58:16 PM EST
21.33 oz. to 640 oz.

1 gallon = 128 oz.

640 oz. = 100% 21.33 is 1/30 of 640 oz.
Link Posted: 10/28/2004 9:58:47 PM EST
1/6 gallon = 2/3 quart

I dunno. It's a guess.
Link Posted: 10/28/2004 10:00:42 PM EST
30/1 = 5/x

30/1 = (5/x)*6

30/1 = 30/6x

6x/6 =1/6

x=1/6
Link Posted: 10/28/2004 10:01:51 PM EST
30:1, 5gallon gas

add 21.3 oz or .66 quarts of oil.

Someone might want to double check this before you use it
Link Posted: 10/28/2004 10:07:04 PM EST
You guys are so sweet, I got a present for you:

Link Posted: 10/29/2004 5:19:56 AM EST
[Last Edit: 10/29/2004 6:01:58 PM EST by darwindog]
ACTUALLY, If your total desired volume is 5 gallons, then your mixture should be:
20.645 oz of oil and 619.355 oz. of fuel

128x5=640

640/31=20.645 which is the abmount of oil to use
640-20.645=619.355 oz of fuel to make a mixture with a total volume of 5 gallons.

The other way is still a 30:1 mixture, but your total volume will be 5 gallons, 21.376 oz. or 661.376 oz.
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