Fuel Consumption (merged topic)

[1600dave]

When throttle is closed on the BA BF series are the injectors firing?

I notice the FG instant usage drops to 0, where my BF slowly drops back to about 1l/100 when completely off the pedal.

[tab]

Coasting in-gear, no they aren't. Out of gear and idling they will be.

[1600dave]

Be a bit spooky if they weren't firing at idle or out of gear.

So how does the ecu decide what the instantaneous consumption is, and why doesn't it read 0l/100km when coasting in gear, like the fg's do?

[Dillz]

I recenty drove around in an 09 corolla for 11 days an went through just over half a tank, in the Falcon I fill up once a week.

I don't even think the ford ones accurate now.

[1600dave]

Yep we have new diesel mondeos at work, 800-1100km per tank, which is 70l. Not slow either (for a diesel). Boss got his to 2l/100 slipstreaming a truck.

[Aust_Monty]

Currently have 2800 klms and average speed 56klm/h now at 11.0l per 100 and loving it as I know it will get better.

Bogan special used to run at 11.2

[nathanway]

I drive mine around like a normal person changing at about 2200 and I get about 11.5Lper100klms that's with the ac off, it can be as high as 17L per 100klm (in town conditions) ac on and a boot hear and there is all it takes .my thinking is if u run the ac its puts load on the motor this means more fuel but also more exhaust gasses meaning the turbo will spool more eazer meaning boost at lower rpm and extra fuel for the extra air, during normal drivin this is bad u dont want the turbo doing its thing, turn the ac off the dont let the revs get over 2k and the fuel average drops to near the same a na xr6 but put the boot in pump the ac and itll be worse than a v8

mines a zf auto fg 65000klms or so running on 95 no mods .can anyone confirm this only asking because the ac really really messes up the econ every other car ive owned the ac only affected it like 1 or 2 L per100 unless mines fooked or the xr6s just have big compressors or somthing

[Gasman]

I rarely use aircon but when on the highway early mornings I use it to clear the screen. I usually end up using 1 litre more per 100k

[gsd112]

I run the A/C pretty regularly. Did a run down to Canberra it was warm down had it on on the way back it was cooler no A/C averaged 10 down 10.5 on the way back. Its BA MKII and it was stock then, around town doesnt make a difference since tuned A/C on or off hovers around the mid 14s.

[Steven87]

My Bf xr6t gets around 550-580kms per tank with 98 around town

Mods growler cai

Got heaps better after I replaced pugs n fuel filter