One tank of fuel over 2 months of daily driving - 1113 KM @ 4.4 L/100km / 53 MPG
Hey! I own a 2008 Volvo V50 1.6d manual (that's a completely champion of a practical workhorse) and just completed 65 days of daily driving on one tank (1.05.2026 - 4.07.2026). Completed 1113,4 km (the trip display went to 0 after 999 km, so the 113.4 you see in the picture is without the first 1000 km showing), then filled up the tank back up to the brim 49.23 liters, giving us a calculated real world long term average of 4.42 liters per 100 km or 53 MPG (US) / 64 MPG (Imperial). The car itself is a little more optimistic as you can see, but that's why I prefer the calculated average.
The goal of the experiment was to see the hypermiling effects over a long term basis instead of one ideal conditions long drive, so this is through different temperatures, different weather, early morning to late evening drives, all mixed together. The climate here in the north end of Europe has been between as low as 7 °C in May to as high as 30 °C in June.
Filled the tank on 1st of May 2026 and used the car for my daily driving until yesterday, 4th of July. This period did not see any long highway drives, so is mainly made up of my rather short daily driving to work and other daily trips when necessary, so the average daily length per drive is between 5 and 10 km. I do live outside of the city, so most drives experience very little traffic (I did end up in at least one very heavy traffic jam in the city back in May where I spent somewhere around 45 minutes in a stop and go traffic jam over several kilometers). I do use cruise control a lot, but take over on inclines to change gear and manage the engine load better, also trying to glide as much as possible before I know I have to stop or turn off the road I am on. I have tried pump and glide, but can't quite get the feel for it in a way that feels beneficial.
This means that a lot of the driving is done in less than ideal engine temp etc. On a long highway stretch the car averages around 3.7 L / 100 KM, but this was not the goal of the experiment. Overall I am very pleased with the result, I am sure the car has even more in it and would be interesting to match these results with a tank of fuel spent on mainly highway drives. Thanks for reading!