GolfGTIforum.co.uk
Model specific boards => Golf mk7 => Topic started by: Derv_Driver on 12 March 2015, 21:51
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Took delivery of my 5dr manual GTD in December, On my 5th full tank of fuel and finding my MPG is horrendous. Done real calculations at the pump brim to brim fillings that are very close to the figures from the computer. Best 38MPG worst 30MPG per tank.
Admittedly I didn't do enough research about DPF and diesel was probably a bad choice for me as I only do 2 x 3 Mile commutes per day under normal use. The car barley gets hot.
Had my last car a MK1 Seat Leon FR 150 for 9 years and it would achieve 40mpg on the same commute and our other car a Mini Cooper S will achieve 35mpg with ease, I don't drive it like a nun either.
Wondering now if I would of been better with a GTI instead? Are they more forgiving on warm up MPG?
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My GTI warms quickly. Easily up to temp within 2-3 miles. Whilst doing those miles my MPG is really not good. 24ish at a guess. I have a short run in the morning for a couple miles all at 30mph so I'll check and get real figures for you.
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Thanks, Just curious if it would of been a better choice considering the Mini with its 175BHP 1.6 petrol engine appears to be drinking less and petrol is that bit cheaper anyway.
I'm putting it all down to the DPF and Euro 5/6 standards spoiling things.
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My commute is 5 miles each way and I am getting 36 - 39 mpg in my Bmw 318d. When I had a test drive in the golf from a cold start I was getting 41mpg in sport mode.
A lot will depend on your driving style and if you have heating/stereo up high, windows down, temp outside etc.
I can't wait to get my GTD and don't think the fuel consumption will be much different to my current car.
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Gti Pp manual, just 2.9 miles to work, 8 sets of traffic lights, 2 of them mostly on green, the rest very rare I don't hit 5 out of 6 and 3 of those I will be waiting there 3 minutes engine running as it's to cold to switch off auto. 24 mpg to 28mpg, -3 to 6 degrees, 2120 miles on engine, I expect this to improve has it gets warmer and more miles.
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I do 3 miles each way to and from work in my gtd and get between 30 and 35mpg. I didn't buy the car for commuting but even so it's still better fuel economy wise than a gti and it always will be. If my car gets a good run out on a weekend the weekly commute is insignificant really.
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Just checked after the first 2 miles of my commute today. 5C outside, heated seats on, heaters on. No traffic at all, straight run at 30 mph for 2 miles have me 29mpg. Also took the car 6minutes to get to full temp. After 3 miles I was at 31mpg
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My trip to the office is 7 miles.
I've been watching my GTD's average fuel use since engine start data in the last week.
The morning trip, by the time I get there (not usually much traffic until I get within a mile of my office) is about 36mpg - ambient temp of about 5-8 degrees recently.
What's really noticeable is that the return journey is 49mpg.
I've been trying to figure out why my long term average is only 42mpg.
I've said on here many times, unless you are doing mega mileage or are a company car driver, have the petrol car! The petrol car is for you.
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Should probably mention mine is revo' with a cold air intake. May be different at stock
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I'm quite jealous of the mpg you guys are getting, on my 3 mile commute to work I don't get above 20 mph for more than 100 yards at a time, I average 17.6 mpg in a gti :(
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A lot will depend on your driving style and if you have heating/stereo up high, windows down, temp outside etc.
Heating, stereo, lights, heated rear window etc will make no measurable difference to fuel consumption. Window down will at speed and outside temperature only makes a difference to warm-up once up to temperature low ambient should help but warm-up on DI Diesels can take a long time...
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Cold start 14 mile trip to work yesterday returned me 40.2 mpg in my GTI.
14 miles is probably not a short trip though and I was in slow moving traffic 40/50 mph.
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Here's a question to the OP.... the difference between 30mpg and 40mpg on a 30 miles per week commute equates to what?
Every 4 weeks you would save one gallon of fuel... £6 per month? I know £6 is £6 and if you haven't got it then its £6 too much but really? That's 1.8 litres per week.
Its still a tiny, tiny amount compared to running a 30k car...
If you'd have bought a Polo GTI (for example) you'd have been saving a lot more! Or walk/cycle the 3 miles?
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Here's a question to the OP.... the difference between 30mpg and 40mpg on a 30 miles per week commute equates to what?
Every 4 weeks you would save one gallon of fuel... £6 per month? I know £6 is £6 and if you haven't got it then its £6 too much but really? That's 1.8 litres per week.
Its still a tiny, tiny amount compared to running a 30k car...
If you'd have bought a Polo GTI (for example) you'd have been saving a lot more! Or walk/cycle the 3 miles?
Thanks for all the replies, I think you would be right a Polo GTI might of been a better choice. I had not done any research into Euro 5/6 diesel and DPF prior to taking on this 3 year contract hire. I went from smoky old MK1 Leon FR 150bHp that was coming upto 9 years old and having read the VW brochure decided the GTD was the obvious upgrade giving a performance upgrade & better advertised fuel economy. I put the better figures and higher performance down to the weight saving over the Seat. think it was nearly 100kg lighter.
But then reality happened and I realise they must get these figures on a hot engine under perfect conditions unlike a 3 mile commute in heavy traffic and freezing conditions and I'm constantly throwing extra fuel into the exhaust to burn off the soot.
Your right its probably only costing me a couple of quid extra per week but what does annoy me is that the government gives me an advisory fuel rate that I can claim for business mileage use at just 11p per mile currently without having to declare any BIK on it.
The reality is that it is costing me say 17p currently to nip to see a customer locally.
Only another 2 & 3/4 years and then I will have to do my homework and probably look at a petrol machine.
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BTW, from my latest journey, from over-night cold, the first 3 miles I got 39.8 mpg.... but the ambient was 11.5 Celsius by the time I left for my first meeting this morning (grrrr bloody kids!)
I reckon once ambient temperatures get up above ten degrees, the initial crappy warm up period is massively less....
However, definitely do not buy an oil burner if all you do is short trips!
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That type of trip wont do either engine any good. I think a Golf GTE would be more suitable in these circumstances.
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Get the GTI, otherwise one day you'll find yourself side by side with a Peugoet 208 GTI on an uphill stretch of dual carriageway and they'll destroy you. This happened to me today.
Miss my GTI.
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Get the GTI, otherwise one day you'll find yourself side by side with a Peugoet 208 GTI on an uphill stretch of dual carriageway and they'll destroy you. This happened to me today.
Miss my GTI.
Must be something wrong with your gtd then as it's got way more torque than a 208 s4itbox.
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My GTD is a fit as the day I got it, but the fact is that 208 has way more bhp/tonne (173 vs 134) and weighs over 200kg less.
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And without stage 1 at gti wouldn't make much difference?
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And without stage 1 at gti wouldn't make much difference?
I'd say you're probably right! Has to be an R then!
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I still think my old MK1 Leon FR 150 would give a GTD a pretty hard time having driven both now in anger a few times.
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I had the 150 fr leon and thought it was quick. The golf is quicker though but doesn't feel it due to how it uses the power/torque. Leon was raw and not very refined where as the golf is smooth and very refined.
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Think your right, the golf is much smoother and always shocks me when I do look at the speedo where the Leon did feel a bit thuggish when you gave it some so probably felt quicker to the driver.
leon was also happy to chug around the local ring road 30/40 MPh in 6th but the Golf isn't very forgiving and not happy to do this. You have to work it to get the most out of it.
Hit the right gear in the GTD at the right revs and it can all get very exciting very quickly.
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My GTD is a fit as the day I got it, but the fact is that 208 has way more bhp/tonne (173 vs 134) and weighs over 200kg less.
Correct. Torque figures with no rpm does not reveal much.
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Still think a gtd driven properly wouldn't be outpaced by a 208, sorry.
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Unlikely given the figures provided, simply the 197 bhp engine can do more work for a given period of time than the 181 bhp engine.
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Get the GTI, otherwise one day you'll find yourself side by side with a Peugoet 208 GTI on an uphill stretch of dual carriageway and they'll destroy you. This happened to me today.
Miss my GTI.
Or chuck a DTUK on? Destroyer of pugs. :evil: (and stock GTI's :whistle:)
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Get the GTI, otherwise one day you'll find yourself side by side with a Peugoet 208 GTI on an uphill stretch of dual carriageway and they'll destroy you. This happened to me today.
Miss my GTI.
Or chuck a DTUK on? Destroyer of pugs. :evil: (and stock GTI's :whistle:)
I always seemed to attract the attention of Civic R-types with the DTUK box on - they were left for dust, Focus STs too (last shape, 225PS).
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Still think a gtd driven properly wouldn't be outpaced by a 208, sorry.
I don't know why it's so hard to believe, its a smaller, lighter, more powerful car that only has a slight torque disadvantage. I should point out that I probably gained on him up until around 70mph, but after that he was pulling away.
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That will be because 5th and 6th are massively tall cruising gears, whereas he was probably still in 4th.
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The 208 GTI will be faster.....it's a faster car. 0-60 in 6.6 or 6.3 depending on variation. So regardless of how much people think the GTD will keep up, it just won't. Just like it won't keep up with the golf GTI, which the 208 could do to 60. May lose after that mind you.
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I always seemed to attract the attention of Civic R-types with the DTUK box on - they were left for dust, Focus STs too (last shape, 225PS).
I haven't met any type-r's or st's yet :(
The 208 GTI will be faster.....it's a faster car. 0-60 in 6.6 or 6.3 depending on variation. So regardless of how much people think the GTD will keep up, it just won't. Just like it won't keep up with the golf GTI, which the 208 could do to 60. May lose after that mind you.
Well a diesel is proportionally faster in-gear than suggested by it's 0-60, so it's not that clear cut - especially up hill where more torque is needed to overcome gravity.
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The driver of the car has a lot to do with it too.
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The driver of the car has a lot to do with it too.
So suppose you're ringing it's neck at 80mph+ in 5th, what next?
Christ, I like my GTD, on the roads around the Peak District today it was a blast, and plenty quick enough, but once past 70 - 80 mph it builds speed quite slowly. If there's a way to effect that then I'm all ears, but I suspect you're placing a bit too much importance on that little bit of extra torque. Torque is needed to overcome gravity, but weight plays a pretty important part too.
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80mph in 5th is hardly ringing it's neck and it picks up just fine even in 6th at 70-80mph. What mode do you run it in? I'm not saying it's you by saying it's the driver by the way :smiley:
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Well a diesel is proportionally faster in-gear than suggested by it's 0-60, so it's not that clear cut - especially up hill where more torque is needed to overcome gravity.
But absolute torque is irrelevant because gearing is a torque reducer and where in the rev range and how widely it is spread are two of the other factors....
Honda S2000 163 lb/ft torque, Golf GTD 280 lb/ft... Honda S2000 the faster not by dint of having more torque, but (a) shorter gearing and (b) a wider rev range allowing the shorter gearing to be effective...
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Hope that wasn't going down Snake pass :whistle:
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Anyone know what the gear ratios are for a manual GTD?
I've looked everywhere and can't find them
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Well a diesel is proportionally faster in-gear than suggested by it's 0-60, so it's not that clear cut - especially up hill where more torque is needed to overcome gravity.
But absolute torque is irrelevant because gearing is a torque reducer and where in the rev range and how widely it is spread are two of the other factors....
Honda S2000 163 lb/ft torque, Golf GTD 280 lb/ft... Honda S2000 the faster not by dint of having more torque, but (a) shorter gearing and (b) a wider rev range allowing the shorter gearing to be effective...
I don't disagree with you. I was just stating that the GTD will be closer to the pug in-gear than the 0-60 suggests, and secondly that going up hill the diesels torque will be of benefit.
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But you miss the point...
The increased torque will only matter if the gearing isn't proprionately longer...
For cars of equal mass, torque spread and drag, a car with 150 lb/ft of torque but gearing of 15mph/1000rpm will accelerate at the same rate as a car with 300 lb/ft and gearing of 30 mph/1000rpm regardless of terrain...
Absolute torque is irrelevant, you need to take into account the gearing...