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Old Sep 4, 2007 | 10:10 AM
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RickyLee53
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From: Rotherham
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Originally Posted by 68332
Originally Posted by RickyLee53
Originally Posted by 68332
Dont forget lambda is a ratio depending on fuel type.

Petrol is 14.7
Diesel is 28.0 to 32.0 ish
Natural gas about 5.0
Diesel stoich is very similar to petrol actually.


LPG is 15+ and Methanol is something like 6.
I think you are confused


LPG (Liquid Petroleum Gas) and natural gas are two different fuels !

Stoichometric ratio has NOTHING to do with AFR in the sense you desribe.

AFR desribes the ratio of fuel to air.

STOICOMETRIC describes how efficiently it burns.


If as you say diesel was the same as petrol, how do you explain the MPG that
diesel gives over petrol.

yes i know LPG isn't natural gas i just quoted that as its the highest Stoich i could think of.

I thought 1 lambda would be the Stoich for each fuel? Lambda is the 11th letter of the greek alphabet with a value of 30.
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