2005 SV6 Fuel Consumption

[BrockyFan05]

Hi all,

I drive a 2005 SV6 upgrade model and are having trouble with the fuel consumption.

Regardless if I'm driving in the city or the freeway, I only seem to get about 430K's from a full tank. I'm sure this is not right? The car specs state that city driving should return 11.5 per 100. I'm not too car savvy and took it to my mechanic who said he couldn't do anything about it. I'm really sick of making these oil companies richer, so if anyone could help me out, that would be greatly appreciated!

Cheers

[ataylor2703]

Well i have a 06 Manual Sv6 and depending how i drive, i get preety close to 500k's and highway driving about 650ish.

But mine having a 6th gear may be helping?????

[monkeys437]

Full tank meaning it runs out of fuel or you decide to fill it up? What are you getting in L/100 ks?

[CapriciousWL]

I tried taking a VZ wagon to Holden when there were obvious differences between a number of them we had. The thing to watch is the average stated and the tolerances. You may have been quoted 11.5 for a combined cycle (I get 11.09 in the Caprice combined with a slightly heavy foot) but a difference of 5% in either direction would give 10.93 - 12.08 as a potential range. Not sure what the official tolerances are, but I would monitor when it is filled, the distance travelled and work it from there. Don't trust the digital readout as the calibration is a bit of guess work - in some models you can recalibrate yourself.
The distance does sound low - I would expect from experience that you would get 500km minimum - how much fuel goes in and how large is the tank? The range to empty is wildly wrong in a number of cases also - depends on which way the Eindhoven is blowing....

[Fishman88]

should get round 500km from full to almost empty [city/local] and round 600km plus [freeway/highway driving] im getting around these figures in the vz calais alloytec190 and ye depends on ur right foot n traffic.

[adamcawood]

i got a 2004 vz sv6 190 and im geting like 420-440 to a tank and that is full to the top till it is telling me fule low and ive got about 10 km left weather i drive it hard or take it easy prety much the same i drive half half hwy and in town dose that sound rite

[KrisHolden]

I have heaps of slopes where I make short trips in my VZ Calais and it goes from roughly 11ish (when just one flat roads) to 19L/100km when driving the slopes. I do have a heavy foot at most times but yeah its pretty crazy. I dont think Iv got a problem and its always been serviced regularly at NRMA and Holden

[Brane]

Ive been wondering what the go with my vz sv6 is too becuase I only seem to get around 450km on a full tank

[Edz_SV6]

my vz sv6 used to to 10.8/100

but that was with a cai and cat back...

still.. cant complain

[Shorty33]

my 3.6 L Executive, unmodified, towing a trailer with a 300 kg motorcycle on top, on a long trip -
cruise control set at 111 kph, I got 610 km, without running out (took 72 litres at the servo, so it was close); and
the following day, a bit quicker, cruise control set at 133 kph, I got 460 km, and I ran out, bone dry (I had a jerry can with me).
That taught me a bit about VZ fuel economy !

[TazzI]

I can think of 4 things that you could give a go at changing to get better economy.
1. Use an engine flush additive to get rid of any crap, refill with some quality oil (dont stinge out!) and then add in engine additive.
2. Clean plenum chamber and air intake (this made big difference for me!, car idle smoother and ran smoother.)
3. check/change O2 sensors on exhaust, most never been changed and are not doing there job right.
4. Dont have a foot made of f***ing lead!!!!

A full tank of fuel gets me about 540kms city driving, and 640 highway. And on gas gets about the same.

[veezedhead]

usually sit between 10-12L/100km, was on a flat piece of highway yesterday and set my cruise on 100km/h and the first readout was 5.6!!

[alex2_s]

how many litres are you putting in when you say full tnak. the gauge/warning migth say "EMPTY" but you may only be able to squeeze 55 or so litres in (its a 75 litre tank) as the gauge is notoriously crap. mine is accuracte until about 1/3 remaining then it goes bonkers. so thats why it "seems" your fuel consumption is poor.

[CapriciousWL]

how many litres are you putting in when you say full tnak. the gauge/warning migth say "EMPTY" but you may only be able to squeeze 55 or so litres in (its a 75 litre tank) as the gauge is notoriously crap. mine is accuracte until about 1/3 remaining then it goes bonkers. so thats why it "seems" your fuel consumption is poor.

Spot on. Keep manual records, don't trust the gauges until you have verified them.