- Spinoff from how much to fill up, Whats your MPG
Lightly tuned Saab 95 Aero (2.3 turbo petrol @ 280hp) = 27mpg average. However I live in a city centre, so every trip has a bunch of stop/start driving which tans the economy.
On the motorway it’s about 35 mpg with a couple of bikes on top.
Not great, but it only cost me £900 so I can afford a bit more petrol @ 5k miles / year. Also going for that “keep an old car running/not the emissions/energy of building a new car” environmental consciousness thing.Posted 1 month agoHarry_the_SpiderSubscriber
Average over a full tank is 39 in winter and 42 in summer.
Will do nearer 50 on a run.
2.0 CDTi SMax.
Had it serviced yesterday and filled it up this morning, so will be interested to see the effects. Trip computer readings are only +/- 2% off actual and early indications are that it has improved.
I have a spreadsheet. You can tell.Posted 1 month agoHarry_the_SpiderSubscriber
Genuine Q – why do people track it? You need to use as much fuel as you need for the journeys you’re making, what does averaging the amount you use tell you?
It tells me if something is wrong with the car 40, 40, 40, 40, 30 – fault.
Also, I like spreadsheets.Posted 1 month agohodgyndMember
Vauxhall Insignia Sports Tourer 2.0l diesel ( 170HP )..38mpg over its lifetimePosted 1 month ago
Audi A6 Allroad 3.0l V6 Diesel S-Tronic ( 272 HP)..
I’ve never looked and dont particularly want to know …
Both cars are run on premium diesel (97ron) …
Higher mpg when the missus is driving as she has a lighter right foot than myself ..😁johnnersMember
49.8 over the last 41000 miles from a 320d auto.
Genuine Q – why do people track it?
I could say something about recognising problems early from MPG but I reckon any problem causing a significant change would show up another way anyway. So genuine answer – no real reason except I like to, and since I’ve done it for the past 250000 miles in this and my previous 2 cars there’s a bit of the compulsive about it.Posted 1 month ago5labMember
But it’s what it says on the pump..
I suspect it doesn’t. Diesel typically has a RON of around 50 – you specifically want it to pre-ignite, or the engine wont run. Premium diesel has exactly the same explosive qualities as non-premium (this is different to petrol; high-ron petrol is less ‘eager’ to explode, so more of it can be put in a cylinder at once, generating more power (but not more power per litre of petrol)).
The difference between cheap and premium diesel is what they add to it. It probably ‘cleans’ your engine a little, but whether this is actually advantageous is another question.
edit : looking at this article, v power diesel actually has less energy and a lower RON than regular diesel.. https://en.wikipedia.org/wiki/Shell_V-PowerPosted 1 month agodoomanicSubscriber
According to the onboard computer my 520D Touring has averaged 40.8 in the 30k miles since I bought it, which is worse than the older, less efficient 325D Touring it replaced doing similar trips.Posted 1 month ago
Last full tank was 42.2 calculated from mileage covered and fuel added. No commuting in that tank either so I was a little disappointed. I don’t hang around though.philjuniorMember
People quoting figures to 0.1mpg does the wind never blow? Do you always drive exactly the same roads with the same traffic?
Mine varies from 35mpg if absolutely thrashing it or cold start driving around town when the battery needs a charge so stop start doesn’t kick in to 60mpg on a steady run.
50 is usually my target if I’m driving sensibly, under 40 on a run feels a bit naughty.
The GF’s van got 30mpg when I was driving uneconomically to empty the tank enough to allow fitment of a diesel heater, to about 40mpg driving home with her following in my car.Posted 1 month agofossyMember
Tracking it – I don’t, the computer does it, and it’s reasonably accurate. Currently doing a later commute with a 9am start – 22mpg. If I do the 7 or 7:30 starts it’s about 26-30 mpg (less traffic).
Unless we’re all doing the same journey, all these figures we are quoting aren’t comparable.
It’s always worth keeping an eye of fuel use as it can indicate a problem with the car. Fortunately, my car hasn’t ever got worse of better in the 18 years.Posted 1 month agow00dsterSubscriber
The computer in my Berlingo van says 47.5 mpg over the last 6700 miles. That’s generally long runs leaving early in the morning, I think the average speed was over 40 mph.Posted 1 month ago
Now I’m doing much shorter runs in a Kia Ceed Estate, getting 41mpg. I’m lucky to get to 40mph now let alone average it.
I’m thinking of getting rid of the van soon as it’s no longer needed, can’t decide if I should go green and get an I3 or something like a BMW M240i. Quite different running costs between those two I imagine.
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