R U Guys adding gas to my truck?

The winter cold air is the reason for your low mpg. I average 18mpg in winter because of long warmup. Now that we are seeing 45 degree. I'm starting to see 20 mpg.

 

AFR remains the same. Air with greater density requires less fuel

But AFR remains the same, thus therefore, where with it stands your MPG remain the same

 

Truth being told, I shall clarify. Denser air requires MORE fuel however your engine needs less mixture.

Henceforth obviously

 

Sorry to be the one to tell you this, but this too is inaccurate.

The size of the combustion chamber, and therefore the volume of air inside of it, does not change with a change in incoming air temperature. It is fixed. The same volume of air is drawn inside, regardless of the airs temperature. Now, colder air has more mass, as it is more dense, but the volume is constant in this situation. The Air to Fuel mixture remains the same.

It is true that colder, denser air results in more power, as there is more to burn (and you can use less skinny pedal to reach the same speed), but your engine does not use power output as the variable that influences how much fuel is sprayed into each cylinder. That is a result of incoming air.

 

I’m at about 3500kms and I started at about 16mpg and an averaging around 20 mpg now and we’re still in below freezing temperatures, was at about 580kms on my last tank when the light came on.

Anyone who wants to add gas I’ll gladly PM you my address though!

 

Makes sense, still an added .7 mpg