Ming the Merciless
There is no mercy
- Location
- Inside my skull
I average around 16mpg on highway and less than 5mpg on town stop start driving (very rarely do I go into a town)
😳
I average around 16mpg on highway and less than 5mpg on town stop start driving (very rarely do I go into a town)
I'm not sure that's significant. And if you compare that to the amount of extra distance to go to the fuel pump 2 or 3 times, even less soI accept if you drive round all the time with a full tank you are using a bit more fuel lugging the weight of the extra fuel.
I'm not sure that's significant. And if you compare that to the amount of extra distance to go to the fuel pump 2 or 3 times, even less so
I used to think that too until a Concorde engineer showed me the calculations they make to decide the right amount of fuel for a trans-Atlantic flight. x lbs of fuel to get the aircraft there plus y lbs to get the fuel there +z lbs to get the extra fuel there+ etc., etc. He had a circular slide rule to do the calculations on. An extreme set of circumstances but it really mounted up. Even then I was glad it wasn't my credit card paying the billI'm not sure that's significant. And if you compare that to the amount of extra distance to go to the fuel pump 2 or 3 times, even less so

My Kodiaq's fairly economical, and can show 740mile range on a full tankMy corolla has a 43 litre tank , with careful driving i can get around 55- 60 mpg . I once got 73 mpg going to work but that was extreme driving with very gentle acceleration and slowing because there was no one else about .
Cost to refill currently for a full tank is about £65 and should get 500 ish miles but the fuel gauge says 400 although i have read its very conservative .
I used to think that too until a Concorde engineer showed me the calculations they make to decide the right amount of fuel for a trans-Atlantic flight. x lbs of fuel to get the aircraft there plus y lbs to get the fuel there +z lbs to get the extra fuel there+ etc., etc. He had a circular slide rule to do the calculations on. An extreme set of circumstances but it really mounted up. Even then I was glad it wasn't my credit card paying the bill![]()
Yes I understand that. I just saw something on (was it Mythbusters or something similar?) that said an extra 30kg of fuel in a car doesn't make much difference, especially in towns where you're not often going above 40. And on motorways when you're more often at a constant speed, so the speed is significant but not necessarily the tiny weight difference