Fuel Economy - What do you get out of a tank? (3rd gens only)

[vlad]

I don't know how you guys get such bad economy figures. I've got the heaviest car here
and around town and suburbs I get 500km/tank (64ltr tank). My car has a kerb mass of
1680kg plus tow bar = 1700kg.

[RJL25]

i sometimes struggle to get 300km but thats cos my car spends alot of time just sitting idling and driving around at 20km/h

[vlad]

Whats everyones average speed. Mine states 37.0 kph

[Malkatraz]

I get 10.6L/100 on my vanilla '05 Verada AWD (avg speed of around 66km/h). My route to work is usually on 100km/h country roads and highways. No inner city stuff.

OT - Whats up with Verada AWD badges Vlad? I have 'Verada' on back left and 'GTVI' on back right with only 'AWD' on rear passenger doors. I haven't seen any other Verada like that. They all seem to have the 'AWD' badge on the back.

[vlad]

I get 10.6L/100 on my vanilla '05 Verada AWD (avg speed of around 66km/h). My route to work is usually on 100km/h country roads and highways. No inner city stuff.

OT - Whats up with Verada AWD badges Vlad? I have 'Verada' on back left and 'GTVI' on back right with only 'AWD' on rear passenger doors. I haven't seen any other Verada like that. They all seem to have the 'AWD' badge on the back.

Do you have the series II badge as well? Mine is done like the Magna VRX AWDs with the
AWD/quadtech badge on the left and the VRX/Series II badge on the right.

[burfadel]

i sometimes struggle to get 300km but thats cos my car spends alot of time just sitting idling and driving around at 20km/h

That would have to be a whole lot of idling! Don't they use around 2.8L per hour idling? Hmmm 20km/hr efficiency depends on what gear your in and brake use etc...

[vlad]

That would have to be a whole lot of idling! Don't they use around 2.8L per hour idling? Hmmm 20km/hr efficiency depends on what gear your in and brake use etc...

Driving at low speeds and extremely high speeds are both bad for fuel economy. I've
posted a webpage in the what to mod to improve fuel economy thread which contains a
graph which clearly state that fact. I've attached the graph so people don't have to
search for it.

Travelling at 15mph==24kph is worse than travelling at 75mph==120kph.

[burfadel]

I knew there was the case, just didn't realise it was that much! Interesting to see the peaks around 35 and 55 with a dip in the middle... Weren't the basic speed limits in the US 35 and 55? Would that signify ECU tuning with only a couple of 'stations'. I have heard its the same here, that EFI cars (Australian at least) have ECU stations at like 55-65, 75-85, 105-115, etc. but wasn't sure whether it was true or not!

[RJL25]

That would have to be a whole lot of idling! Don't they use around 2.8L per hour idling? Hmmm 20km/hr efficiency depends on what gear your in and brake use etc...

i basically use my car as a courier van my average speed is usually below 20km/h despite the fact the engine is actually running for 6-7 hours a day. Rarely gets into 4th gear, tend to brake pretty hard, lots of inner city traffic driving when i actually am moving, lots of accelerate, brake, accelerate, brake type driving.. Give you an idea as to why my economy is so crappo?

[burfadel]

i basically use my car as a courier van my average speed is usually below 20km/h despite the fact the engine is actually running for 6-7 hours a day. Give you an idea as to why my economy is so crappo?

Ah ok! Well that much idling that makes sense then! If its using 10L/100km, then an average speed of 20km/hr would make it 14L (of actual fuel used when driving), plus the 2.8L/hr idling figure I suggested. That would make your daily fuel use around 28L-30L? I guess that would equate to around 300km a tank