Danny350z Posted February 28, 2008 Posted February 28, 2008 So since I bought my Zed in Dec 2006 my fuel economy has always been an average of 19.8mpg, even after having the Nismo fitted, etc. Then, over the last few weeks I've watched as it's slowly started to drop, despite no change in style of driving, still driving the same routes, etc. At the start of this week it dropped to 17mpg, todays it's at 16.9mpg. My DTE came up as 20 miles to empty the other day so I stuck £20 in, reset the odometer and now, 30miles later the light is back on and it's showing 20-30miles DTE. Should I be a little concerned? Quote
GIXXERUK Posted February 28, 2008 Posted February 28, 2008 30 miles for £20 ! :scare: look for a puddle and sniff around for petrol fumes - that aint right mate do the tailpipes look sooty ? Quote
bobby Posted February 28, 2008 Posted February 28, 2008 on avg...from what I have seen so far...the Z gives about 4miles/litre...this is in london driving style!!! at £20 (about 18litres) you should get around 65 miles unless you push your right foot through the floor and touch the road. the glitch here is that you are depending on the DTE reading for your info...DTE readings are directly linked to fuel gauge and MPG calcs of the ECU. I personally dont trust the DTE reading...As that is calculated with a buffer of about 10litres in the tank at least. (you can drive another 40-75 miles atleast when the reading is -----) but in your case I dont think there is anything wrong... 30miles DTE + 65miles fuel - 30 miles = approx DTE of 20-30 miles. So nothing to worry about...IMO. Hope it works out the same way in your calculations. Bobby Quote
Danny350z Posted February 28, 2008 Author Posted February 28, 2008 They were dirty, don't know if you could call it 'sooty' though. However, should I be worried my Nismo tailpipes are developing little patches of rust? Quote
AndySpak Posted February 28, 2008 Posted February 28, 2008 Danny, are there puddles of petrol on your driveway? 16mpg sounds very low to me. I do a fair mix of urban and motorway driving and my average reading is 25.6mpg (last reset on 16th October and 6,500 miles ago). I'd get it checked out if I were you. Quote
Zedrush Posted February 28, 2008 Posted February 28, 2008 Danny, are there puddles of petrol on your driveway? 16mpg sounds very low to me. I do a fair mix of urban and motorway driving and my average reading is 25.6mpg (last reset on 16th October and 6,500 miles ago). I'd get it checked out if I were you. +1, that sounds like al lot of consumption for the miles Quote
Danny350z Posted February 28, 2008 Author Posted February 28, 2008 No puddles I can see. I'll see if it drops from 16.9mpg to 16mpg and then get it checked. It was always a fairly consistent 19.8mpg for town driving being reasonably sensible. Since fuel prices have gone up I've been more sensible than usual so I'm surprised it's suddenly started to drop so much. Quote
stuey Posted February 28, 2008 Posted February 28, 2008 are your neighbours chavs...................... and syphon your tank.............. Quote
AndySpak Posted February 28, 2008 Posted February 28, 2008 He hasn't said he lives in North Wales Stuey... Quote
Sarnie Posted February 28, 2008 Posted February 28, 2008 No puddles I can see. I'll see if it drops from 16.9mpg to 16mpg and then get it checked. It was always a fairly consistent 19.8mpg for town driving being reasonably sensible. Since fuel prices have gone up I've been more sensible than usual so I'm surprised it's suddenly started to drop so much. Do you use 3rd gear and above? Quote
Danny350z Posted February 29, 2008 Author Posted February 29, 2008 No puddles I can see. I'll see if it drops from 16.9mpg to 16mpg and then get it checked. It was always a fairly consistent 19.8mpg for town driving being reasonably sensible. Since fuel prices have gone up I've been more sensible than usual so I'm surprised it's suddenly started to drop so much. Do you use 3rd gear and above? Wait... what??!?! This stick thing goes above 1? Quote
GC350z Posted February 29, 2008 Posted February 29, 2008 My car only hit 3rd twice this morning on the way to work. Most of the time I was in 1st. On a really bad day like today my fuel consumption can make most SUV's look economical. On the plus side I only have to travel 5 miles. Quote
Trev-the-Rev Posted February 29, 2008 Posted February 29, 2008 I get pi$$ed off when I have to stay in 5th on my trip trip work. Quote
KS2006 Posted February 29, 2008 Posted February 29, 2008 My commute is 3 miles and takes me anywhere from 20 mins to 45 mins I usually get into 3rd gear a couple of times. My MPG is 13.4mpg atm :O Only money at the end of the day Quote
sinbad Posted February 29, 2008 Posted February 29, 2008 I get pi$$ed off when I have to stay in 5th on my trip trip work. me too, i cant wait to get off the motorway for that quick 5-10 burst in 2nd Quote
stanski Posted March 3, 2008 Posted March 3, 2008 at £20 (about 18litres) you should get around 65 miles Shine a light - just did some quick maths !! For me thats 65 each way = 130 miles = £40 per day x 5 = £200 per week!! Current cost per week in Diesel about £81 I think I defo need to get my VW van also and use that a few times a week!! Quote
3FIDDYZ Posted March 3, 2008 Posted March 3, 2008 Does sound like its running on the heavy side, zorst should have nothing to do with it. Faulty fuel pump / fuel rail perhaps? Also what petrol you putting in? Do you use the same filling station? Tried running to empty and then running other brand? I seem to get more out of Tesco and shell optimax than I do out of BP... You had an oil change recently? Quote
Sarnie Posted March 3, 2008 Posted March 3, 2008 at £20 (about 18litres) you should get around 65 miles Shine a light - just did some quick maths !! For me thats 65 each way = 130 miles = £40 per day x 5 = £200 per week!! Current cost per week in Diesel about £81 I think I defo need to get my VW van also and use that a few times a week!! It doesn't work out quite like that. I used to do 500 miles a week in mine which would be a tank and a half, which was just less than £100 per week at the time. £200 is way off Quote
stanski Posted March 4, 2008 Posted March 4, 2008 £200 is way off Thanks goodness for that - thanks That would have been a major show stopper for me - other than insurance being stupid - must be my postcode I think - anyway found the car I want just need to get a few things in place first - where's the nearest bank to rob! Quote
Toon Chris Posted March 4, 2008 Posted March 4, 2008 Cruise control at 55mph today on the A1. registered 46mpg finally settling on 43.2mpg over 5 miles. Before you ask it was down to 32mpg as soon as the truck got out of the way ! Quote
S1 HNK Posted March 5, 2008 Posted March 5, 2008 sounds daft but little things like tyre pressures make a difference. try folding the wing mirrors in...that should reduce the drag! Quote
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