The Random Thread

[losh1971]

Stop start traffic is what kills fuel economy.

As does hills.

 

[Skydrol]

Stop start traffic is what kills fuel economy.

Very true.

 

[Skydrol]

As does hills.

Not as bad because what goes up, has to come coasting down, so is a wash

 

[vc commodore]

Not as bad because what goes up, has to come coasting down, so is a wash

Depending on the hill...Some hills I wouldn't dare coast down.....

One in particular is a 90KPH (55MPH) speed limit...I go back to 3rd for the complete 7K downhill run.....From memory it's a 10%gradiant and right at the bottom is an intersection right on the edge of city traffic....Be fagged if I'm going to coast down that

So you use just as much, if not more fuel going down that hill, as you do going up

 

[losh1971]

Not as bad because what goes up, has to come coasting down, so is a wash

Makes a fair difference to my bus. On the mainland I was getting 10-11 litres per hundred km. On my way to and from work I get 15-16lph.

 

[Immortality]

Depending on the hill...Some hills I wouldn't dare coast down.....

One in particular is a 90KPH (55MPH) speed limit...I go back to 3rd for the complete 7K downhill run.....From memory it's a 10%gradiant and right at the bottom is an intersection right on the edge of city traffic....Be fagged if I'm going to coast down that

So you use just as much, if not more fuel going down that hill, as you do going up

If it's EFI it should fuel cut when engine braking. On an older commodore you might need to manually downshift one gear in an auto transmission.

 

[losh1971]

Our roads are windy and hilly. Perfect recipie for guzzling petrol.

 

[vc commodore]

If it's EFI it should fuel cut when engine braking. On an older commodore you might need to manually downshift one gear in an auto transmission.

Been down it with older carb fed cars more than my EFI equipped car.....

Be it auto or manual, I always knock it down to either 3rd in a manual, or 3rd with the VY auto or 2nd with the older carb fed cars...

Wouldn't dare head down it in top on a whim to save a few litres of fuel.....

 

[Immortality]

Our roads are windy and hilly. Perfect recipie for guzzling petrol.

But you should be downshifting and letting the engine do the work on the downhills. Saves on brake pads too.

 

[vc commodore]

But you should be downshifting and letting the engine do the work on the downhills. Saves on brake pads too.

I do.....Having a nice busy intersection at the bottom is enough to tell you to use the engine to do most of the braking, rather than the pedal....