Density of Gasoline

[Jmac279]

Does anyone know the density of gasoline AS IT RELATES TO TEMPERATURE ?

I'm specifically looking for a formula or equation that hopefully results in kg/L, although I'm perfectly find with converting ...

 

[Super Jamie]

here's a page that lists the density of lots of different liquids
http://www.simetric.co.uk/si_liquids.htm

i've looked into this before, thinking that i could maybe get some more petrol in my car if i filled up first thing in the morning when it's still cold, or in winter rather than summer. i found out that generally, gasoline doesn't change density enough under everyday conditions for it to make any more than under a cents difference in what i buy. though i don't have solid numbers to back that up

in researching other things about petrol in the past (sulphur content, etc) i have found it very useful to call the technical help line that most fuel companies display on their website. most of the people across the board (in the major companies i called anyway) were helpful and knowledgeable. good luck

 

[Firebird]

i've looked into this before, thinking that i could maybe get some more petrol in my car if i filled up first thing in the morning when it's still cold, or in winter rather than summer.

I don't know how they do things in Australia, but up here gasoline pump computers have a feature called ATC (Automatic Temperature Compensation) which will adjust the reading of the gasoline dispensed in litres as displayed on the pump to reflect the volume of gasoline at 15°c.

(it's especially important here in Calgary, where in the summer it can easily surpass 30° and -30° in the winter, making for volume changes of around 10%)





As for the original question, here's a table of correction factors used to calculate gasoline density for gasoline pumps int he United States:


°F C. F.
115 0.9674
110 0.9704
105 0.9733
100 0.9763
95 0.9793
90 0.9822
85 0.9852
80 0.9882
75 0.9911
70 0.9941
65 0.9970
60 1.0000
55 1.0030
50 1.0059
45 1.0088


Multiply the density of gasoline at 60°F, 0.73722 kg/L, by the correction factors in the table to obtain the densities at any of the temperatures in the table.

 

[Super Jamie]

wow, how interesting is that top post! 👍