Best motorway speed for economy?
On the motorway, where does the economy come into play and at what speed to achieve that mpg?
Pádraig
Pádraig Ó Broin (Arklow)Expert answer
Hi Pádraig,
It kind of depends on what car you’re driving, and how well serviced and maintained it is. The general rule of thumb is that steady, constant speed is the best for economy, but the slower the better. If you want the ultimate in economy set the cruise control for 80-90km/h but be prepared to live on the inside lane with the trucks if you’re doing that. That said, most cars run pretty efficiently at 110-120km/h, so as long as you accelerate gently, and don’t keep braking hard then speeding up, you should do fine.
Diesel or petrol for a new car now?
Hi,
I want to know if buying a new car should I go for petrol or diesel ?
Anthony Dineen (Cork)Oct 2018 Filed under: petrol vs. diesel
Expert answer
Hi Anthony,
That’s a big question, and it really comes down to how you drive your car and, just as importantly, where you drive it. If you’re someone who drives long-haul on motorways week-in, week-out, then diesel power is still the best option for you, as for longer journeys there’s nothing more frugal. Some hybrids are getting closer to diesel economy on longer runs, but they’re not quite at parity yet. If you’re mostly doing short hops, or driving around town most of the time, then either petrol or hybrid power is the right way to go. Those are generalisations though — a lot will depend on your specific needs and tastes, and what sort of car you want.
Outlander PHEV or Volvo XC40?
Hi,
We are in the process of moving from an S60 Volvo to a SUV type of vehicle. We have narrowed it down to the Mitsubishi Outlander PHEV S-Edition or Volvo XC40. Is there any major positive or negative aspects of either that isn’t obvious to the ordinary punter? Help much appreciated in making the final decision.
Ann McDermott (Galway)Oct 2018 Filed under: choosing new car
Expert answer
Hi Ann,
The XC40 is a really likeable car, but you’ll probably find that it’s neither as refined, nor quite as comfortable to drive as the S60 (the ride quality just isn’t as good). It’s also less roomy in the boot. The Mitsubishi Outlander PHEV is a very clever vehicle, but to make the most of it, you need to have a driveway and a charging point, and be covering most of your mileage around town. The battery pack, on a full charge, should get you around 35km of electric-only driving, but if you head out on the motorway a lot, you’ll run the battery down very quickly and then fuel consumption will hover at around the 30mpg mark.
Read our reviews below:
BMW 520d diesel or 530e hybrid for me?
Hi,
I’m in a quandary; I do 80,000km per annum driving. I cover the whole country and am wondering hybrid or diesel. I drive a 2017 BMX X3 at present. Thinking of 530e or 520d.
Declan Mcevoy (Portlaoise)Sep 2018 Filed under:
Expert answer
Hi Declan,
With that high mileage, I'd suggest that you're still better off sticking with diesel, as you'll get far better fuel economy and, as you'll be changing your car frequently, the mileage is going to have a bigger effect on resale values that what powers it. That balance might change in a few years time, but today, in 2018, diesel definitely makes most sense for you. The 520d is an excellent car. As is the 530e, I might add, but the diesel still has the edge for long-distance driving, as you need to plug the 530e in regularly to get the best economy from it.
What's up with my car's stop-start?!
My start-stop doesn’t work then randomly when I’m driving the lights on the dash come on and the car loses power; do you know why?
Tracy Edwards (West Sussex)Sep 2018 Filed under: fault
Expert answer
Hi Tracy,
I'm afraid without knowing exactly which car you have, this is impossible to diagnose. You should bring the car to a good mechanic or auto-electrician.
There are many reasons for a stop-start system to not always work. Read this question and answer on that subject for instance.
How much for my 2004 Renault Scenic?
Hi, I have a 2004 Renault Scenic that is still driving; what will I get from scrappage for it?
Michael Oneill (Shannon Town)Aug 2018 Filed under: scrappage
Expert answer
Hi Michael,
Renault currently doesn’t have a scrappage offer available, but other brands — including Hyundai, Skoda, Peugeot, Opel and more — do and, depending on which vehicle you’re looking at buying, you can get as much as €4,500 off.
Why is my Dacia beeping?
There's a beeping sound while driving my Dacia that sounds randomly for a few seconds. What can it be?
Martin Radford (Westbourne, Emsworth.)Jul 2018 Filed under: fault
Expert answer
Hi Martin,
I'm afraid that's a tricky one to assess from afar. Usually, any beeping is accompanied by a warning light of some description, so keep an eye out for that. If you can't work out what it is then I suggest you bring the car to a Dacia dealer to look at.
Petrol Audi A3, BMW 318i or Honda Civic?
Hi,
I'm planning on buying a brand new 2018 Audi A3 1.0-litre TFSI S line Saloon or 2017 BMW 318i M Sport or 2018 Honda Civic 1.0-litre Turbo. Please help me with the questions below since I have no way getting a test drive:
1. Which one is more fun to drive?
2. Are these cars fast?
3. What is more reliable and costs less to maintain?
4. What is the overall best car?
Thanks, Arjun
Arjun De Silva (Kandy)Jul 2018 Filed under: choosing new car
Expert answer
Hi Arjun,
OK, let’s take these questions in order.
1: The BMW. The Honda runs it surprisingly close, but you just can’t beat the steering and rear-wheel-drive balance of the BMW.
2: How do you mean fast? They’re not performance models, but thanks to turbocharged engines with decent torque curves, they feel brisk enough in everyday driving. As long as you’re not planning to take on any Ferraris at the traffic lights, they’ll do.
3 & 4 together: The Honda. Nothing is as reliable as a Honda, not even a Toyota, and of the three cars here, while it may lack the premium badge, it also has the roomiest interior, will have slightly lower servicing and maintenance costs and, in the long term, should be more reliable than either of the German cars.
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What to do with my converted UK campervan?
Hello,
I have a 2005 Citroen Relay 2.2-litre van I converted to a campervan in the UK. I am looking into registering it here, as I have moved back permanently. I went through the UK DVLA and converted it officially, but they did not change the vehicle category. It is N1. I checked this with them when I got the log book back and they said it remains as is, a commerical vehicle.
Here I understand I need to go through the whole palaver again and get an engineer to sign off the conversion, so it is MI, passenger vehicle. If I am looking at this thing correctly, I would be paying €900+ tax? Onto insurance, any idea what I would be paying on this size vehicle? I have two years' no claims driving it in the UK. Do they accept UK no claims here? It's hard to find the information online as you need to enter your reg and as it doesn't have an Irish reg yet, I have met some dead ends. The van is not worth much and it looks like it will cost me a whole lot more to run it here than in the UK. I am trying to get an idea before I start spending money, if it's a good idea to keep it, leave it on the drive or see if I can take it back or sell it to a UK driver. Any insight would be greatly appreciated.
E O'Mahony O'Mahony (Cork City)Jul 2018 Filed under: commercial vehicle
Expert answer
Hi there,
Should I go for a hybrid next?
Hi,
I am considering purchasing a second hand family size hybrid such as the Lexus IS 300h, as I am trying to save on running costs. I currently drive a 131 Vauxhall Insignia SRi 2.0 diesel, which is lovely to drive and decently economical. I am changing job, and will be communiting about 100km a day, mainly on motorway (although the M50 is like a car park at rush hour so I don't expect to be getting over 60km/h). This will be our only family car so need decent boot space for the baby and buggy etc. I have about €20-25k to spend, looking for a 151 model. I have read mixed advice about whether to go hybrid, or to stick with diesel for the size of car and amount of mileage I will be doing. Your advice and thoughts are much appreciated.
Many thanks, Emma
Emma Tong (Skerries)Jul 2018 Filed under: hybrid
Expert answer
Hi Emma,
I think a hybrid could well suit you, and with your M50-heavy driving (especially in stop-start traffic) it could prove ideal. The IS 300h is indeed a lovely car — beautifully built and good to drive, but you might find that the cabin and boot are on the small side for your family needs. It could be worth looking at the larger GS 300h (same engine, similar real-world economy) or maybe the NX 300h crossover. If you fancy something a bit cheaper, the Prius is always a good choice, as is Kia’s really rather good Niro hybrid.
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