Which car has the greatest range?

[......]

Got to be the Ford Nucleon; 5000 miles between fill-ups. (granted, those are "swap out old reactor for new reactor" fill-ups; it was the '50s) Weapons grade Uranium-235 does make it a little pricy though...

[IJWS15]

Both Superbs I had (‘17 & ‘20) would have done 1,000 miles on a tank had I had the nerve. Based on fuel left when I filled the theoretical high based on my mpg was 1100.

The 2012 Passat was similar.

All 150 ish Hp11 diesels. The Octavia that came between with the same engine was useless due to the small tank - only around 650 miles!

[joropug]

I have a 2020 520d M Sport on 19s. It’s amazing for me, my last car was an S5 so I’ve got a larger tank and it’s sipping less than half as much fuel. A lot less visits to Tesco! It is a MHEV.

I could definitely hit 800 if I did a few more motorway journeys across a tank, eco pro turns off the engine down hills and coasts - it’s good if there’s no traffic to interrupt it and force you to brake, otherwise sport mode with settings changed to comfort is actually best for MPG as you can slow down using the regen and give the small battery a tiny boost at the same time.

Tank size: 66L
Average MPG across a tank: 56mpg
Example actual + estimated range: 778miles


And more nerdy figures:

[Davie]

The old V70 / S60 D5 afficianados on the owners forums used to love proclaiming their car of choice would easily do 1000 miles and more on a full tank... backed up by pictures of the on board computer showing a range of 1300 miles, but negating to accept the on board computer was a hopelessly optimistic compulsive liar or that they'd reset it, coasted the last two miles to the fuel station with the car thinking it'd averaged 99.9mpg.... then filled up.

[MDMA .]

joropug said:

I have a 2020 520d M Sport on 19s. It’s amazing for me, my last car was an S5 so I’ve got a larger tank and it’s sipping less than half as much fuel. A lot less visits to Tesco! It is a MHEV.

I could definitely hit 800 if I did a few more motorway journeys across a tank, eco pro turns off the engine down hills and coasts - it’s good if there’s no traffic to interrupt it and force you to brake, otherwise sport mode with settings changed to comfort is actually best for MPG as you can slow down using the regen and give the small battery a tiny boost at the same time.

Tank size: 66L
Average MPG across a tank: 56mpg
Example actual + estimated range: 778miles


And more nerdy figures:

I have a 2011 320D and see 800 miles to a tank regularly. On a good long run, more so. 23 miles left when I took this picture. 60L tank. I think 900 miles would be achievable in the right conditions.

[williamp]

IanH755 said:

Its an interesting question because it combines more than just "what has the highest MPG" as it also has to include "what has the biggest tank" into that too. So for example my 65mpg Citroen C1 has great MPG but a tiny 35L tank, and my RS6 has an 80L tank but just 23mpg. Then nowadays it also has to include EV Hybrids too which widens the questions even further!

This as well. I getting simmilar mileages between my m340 and Golf. The later costs £20 less to fill the tank

[Purosangue]

Mercedes-Benz E300 BlueTEC Hybrid



what they don't tell you this car had the bigger fuel tank of 80 litres

I bought the estate version ......however mine had the standard tank 58 litre tank i drove from the south of England to Munich on a full tank which was 800 miles

[James6112]

IJWS15 said:

Both Superbs I had (‘17 & ‘20) would have done 1,000 miles on a tank had I had the nerve. Based on fuel left when I filled the theoretical high based on my mpg was 1100.

The 2012 Passat was similar.

All 150 ish Hp11 diesels. The Octavia that came between with the same engine was useless due to the small tank - only around 650 miles!

When I used to commute down the M4, my 2014 Superb 150, saw 900 miles on a tank a few times. That was full to zero!
I do the same commute once or twice a month now, have seen 75mpg on return journey quite easily, keeping to 65mph
Still got it. 87000 miles, 10 years old in a few weeks, owned it 9.5 years, easily a record for me!

[Truckosaurus]

My old D5 Volvo S60 sometime showed 1000 miles on the range display if you filled it up after driving gently. ie. you'd been on a busy A-road and the pace of traffic was around 50mph.

In real life you got about 600 miles as every tank would include lots of commuting with a cold engine, or high speed hooning on clearer roads.

[biggles330d]

Last summer we did Kinross to Strasburg on a single tank in a 2019 Mercedes c300d. It was about 920 miles. In everyday driving getting 700 miles from a tank isn't difficult.

[GT9]

Seems like Merc have this one sewn up...819 miles range without a drop of diesel in sight.

https://www.autocar.co.uk/car-news/electric-cars/m...

"Mercedes says the 8.4 miles per kWh average is equivalent to 282mpg in a petrol-fuelled vehicle."

[Baldchap]

GT9 said:

Seems like Merc have this one sewn up...819 miles range without a drop of diesel in sight.

https://www.autocar.co.uk/car-news/electric-cars/m...

"Mercedes says the 8.4 miles per kWh average is equivalent to 282mpg in a petrol-fuelled vehicle."

Doing 40mph in Africa. Impressive but not indicative, really.

Wonder what it does doing NSL @ 3°C on a dark February morning in Daventry?

[Lester H]

An interesting thread. However, if you were planning a 600 mile journey in an I.C.E vehicle would it really be a hardship to stop once for fuel? Diesel weighs just over 7 pounds per gallon, thus a large, brimmed tank is costing you money and increasing consumption during the initial part of each journey.

[The Wookie]

I used to get 600 miles pretty regularly in my old V8 Diesel Cayenne

I'd have thought something like a V6 diesel Panamera would be a good shout; probably over 40mpg, big fuel tank, slippery shape, not obscenely heavy

[zedx19]

I had a Mazda 6 2.2d estate as a company car years back, sure that would do 800 mile ish on a trek up to Aberdeen and back, at a steady 70mph.

[marine boy]

My Toyota FJ Cruiser has a 159ltr tank, can easily do 900 miles cruising at 75-80mph

A fill up I'm the UK and another in Austria is usually for our 1000 mile drives across Europe

Does 25-28mpg on a trip, not bad for a 2 ton car powered by a 4ltr V6 with brick shaped aerodynamics

[Limpet]

My company 406 HDi would regularly do 750 to the light without trying (almost all longer runs / motorway). With a bit of effort, you could nudge 800.

Still used to have to fill it once a week though. Seems incredible now when my car will often go several days without even moving.

[Alex_225]

Of the cars I've owned I'd say it's a toss up between my old E320cdi and my S320cdi. The S Class had a larger tank but wasn't quite as good on fuel but I'd say they'd both do 850 to a tank if you were cruising.

My Saab 9-3 is incredibly frugal though, smaller tank but does a genuine 60mpg so can do some serious miles on a tank for what it is.

1,000 miles to a tank is awesome though.

[TikTak]

Jaguar XJ Diesel?

Few examples of over 1000 miles on 1 tanks.

[biggbn]

Baldchap said:

GT9 said:

Seems like Merc have this one sewn up...819 miles range without a drop of diesel in sight.

https://www.autocar.co.uk/car-news/electric-cars/m...

"Mercedes says the 8.4 miles per kWh average is equivalent to 282mpg in a petrol-fuelled vehicle."

Doing 40mph in Africa. Impressive but not indicative, really.

Wonder what it does doing NSL @ 3°C on a dark February morning in Daventry?

Uphill, pulling a horsebox...?