Fuel Economy

ED_MX5 · Postby **ED_MX5** » Tue Nov 18, 2014 7:47 pm

So I have noticed that I only get about 350 to 400km to a tank (read to 1/4 tank, God forbid running it to empty :shock:

)
Is this about right for these cars?
I mainly use it for fun runs. Mainly old pacific highway, a good run to palm beach. I do tend to keep revs at around 3-4k typically when through the hills, just to keep the power there. Not going overly quick on the roads. That's what my race car is for.
Is that consumption about right? I don't mind too much as it' just a toy car. But jus wanting to ensure all is running well.
I should mention, It has had a full sevice, so oil filter and oil/fuel filter/ at the moment I have a POD filter for t noise. But that will get slightly modified with a box around it after Christmas. Has new iridium plugs as well.

Cheers.
Ed

JBT · Postby **JBT** » Tue Nov 18, 2014 8:05 pm

Impossible to tell by looking at the fuel gauge. This subject has been done to death.

Fill tank and reset odometer.
Drive >100km.
Re-fill tank.
Note km traveled and fuel litres added.
Do this at least twice.
Divide fuel litres added by .01 x km travelled = litres per 100 km. Should be about 7-8 for normal mix driving for your model. Less for highway and more for city.

ED_MX5 · Postby **ED_MX5** » Tue Nov 18, 2014 8:21 pm

Cheers, that's kinda what I was looking for. That gives me a benchmark.
Thanks for the info.

StuwieP · Postby **StuwieP** » Tue Nov 18, 2014 8:50 pm

350-400km out of 30-35 litres? sounds fine.

MXMatt · Postby **MXMatt** » Tue Nov 18, 2014 9:20 pm

I drive 245klm per day and always fill up with 16 - 16.25 litres
highway driving only and I don't take it easy on the car
M@

NASilverStone · Postby **NASilverStone** » Wed Nov 19, 2014 7:44 am

There are some great smart phone apps rather than the old fashioned manual calcs. Cheers NAS

dmad_dood · Postby **dmad_dood** » Wed Nov 19, 2014 11:23 am

In my na8 i average around 9L/100KM in town with some spirited driving thrown in.

mattyredlocks · Postby **mattyredlocks** » Wed Nov 19, 2014 4:11 pm

In the 8000-ish Km I've owned the little car, I've averaged 11L per 100Km, using John's method above to record.

I feel like 11 is high for one of these - but she pretty much doesn't move except for mountain runs and track days, so all things considered, I think that's ok.

Averaged 16.5L per 100Km at the last club track day - filled up in the morning before, and on the way home.

NASilverStone · Postby **NASilverStone** » Wed Nov 19, 2014 10:57 pm

Smart phone apps are great for those who are moving with the times and have stopped using the abacus and slate......

JBT · Postby **JBT** » Wed Nov 19, 2014 11:05 pm

Mental arithmetic works for me. :wink:

fastfreddygassit · Postby **fastfreddygassit** » Wed Nov 19, 2014 11:32 pm

Excel people, Excel.
I have a touch of OCD regarding fuel consumption.......
:mrgreen:

NASilverStone · Postby **NASilverStone** » Thu Nov 20, 2014 2:14 pm

I'd be much more inclined to believe 'Verbal Judo' works for some...

ED_MX5 · Postby **ED_MX5** » Thu Nov 20, 2014 3:19 pm

Cheers for all the replies people.
Now I know roughly what I should be getting I'll look into it.

Caffeine · Postby **Caffeine** » Thu Nov 20, 2014 9:15 pm

My NB8B was pretty much 10L/100km everywhere except on the highway, then it got down to mid 8's on a good day.

But it's a fun second car for me, my diesel peugeot daily driver sits on mid 6L/100km around town and low 4L/100 on the freeway