Man Maths Helps Required !!

[NeilH]

Right - could not think of where else to post this but I thought this a good start.

I need some help with a calculation for dilution. Now I have surfed the web and found loads of sites, but to be honest they twisted my melon and talked in small amounts and measurements I have never heard of. A friend of mine has provided a calculation, but to be honest it is so simple I think it must be flawed

So - the discussion is about fuel and the octane ratings. Forget any variations in quality, for my purposes I will assume all liquids are pure and are exactly the Octane they state.

So - If I fill my tank with 30 litres of Standard Unleaded Fuel rated at 95 Octane and then Add 30 Litres of Super Unleaded at 99 Octane - what is the actual octane rating of the combined 60 litres of fuel - Yep, it is one of those discussions !!

So the calculation put forward is this - (and I think this is totally flawed by the way)

30 Litres x 95 (Octane) = 2850
30 Litres x 99 (Octane) = 2970

Total = 5820

Then divide this number by the total number of litres (60) and this gives you 97 and THIS is what the suggested Octane rating of the combined 60 litres of fuel will be ...

Really ?? Really ??

[Davey S2]

Have you ever kissed a girl?

[chrispmartha]

You really talk about stuff like this down the pub?

really?

[NeilH]

chrispmartha said:

You really talk about stuff like this down the pub?

really?

Men in the pub discussing cars and related subjects - what is so strange about that ?

[mike-r]

96.5

Math maths isn't always right but that's not the point.

[R6VED]

Who gives a fk.

why does it matter?

and just to re-iterate... who gives a fk

[chrispmartha]

NeilH said:

Men in the pub discussing cars and related subjects - what is so strange about that ?

Really?

There's car related stuff and then there's ....

[NeilH]

R6VED said:

Who gives a fk.

why does it matter?

and just to re-iterate... who gives a fk

Gee thanks for that valuable contribution - appreciated. Obviously I give a fk because there is a genuine reason behind why we were discussing it in the first place and it was not just a random conversation after too many beers ...

[RemyMartin]

R6VED said:

Who gives a fk.

why does it matter?

and just to re-iterate... who gives a fk

You obviously give a fk to spend time replying. I'd wager if you really didn't a fk you'd of ignored it.

[TATOR]

Another un-helpful post but


I talk sh*t like this all the time even when not down the pub!

[TooMany2cvs]

"I don't understand averages"

[Ozzie Osmond]

NeilH said:

If I fill my tank with 30 litres of Standard Unleaded Fuel rated at 95 Octane and then Add 30 Litres of Super Unleaded at 99 Octane - what is the actual octane rating of the combined 60 litres of fuel - Yep, it is one of those discussions !!

So the calculation put forward is this - (and I think this is totally flawed by the way)

30 Litres x 95 (Octane) = 2850
30 Litres x 99 (Octane) = 2970

Total = 5820

Then divide this number by the total number of litres (60) and this gives you 97 and THIS is what the suggested Octane rating of the combined 60 litres of fuel will be ...

I take it you'll be driving home the l-o-n-g way this evening.

Half of 99 plus half of 95 = 97

[hotchy]

Thats not man maths, man maths mean any price of fuel works out good if you like the car.

[thescamper]

The only answer man maths needs is YES, any other answer is not as a result of man maths.

[750turbo]

mike-r said:

96.5

Math maths isn't always right but that's not the point.

And that is not the answer!

Let us call this the Friday Afternoon Giggle

[NeilH]

750turbo said:

And that is not the answer!

Let us call this the Friday Afternoon Giggle

Call it what ya like if I can make some progress on the subject

[Planter]

If its an equal split of litres as you have said then it'll be exactly mid point, as youve already said, its 97.

Done

Next pint, next question!

[GAL001]

This is an interesting one- said no one ever!

[750turbo]

GAL001 said:

This is an interesting one- said no one ever!

Shut it, and get to the bar!

[GAL001]

Got to fill up on 96.5556 Ron exactly on my way there!!