Land Rover Defender TD5 Roamerdrive MPG results Part 4

I've owned a Land Rover Defender TD5 for around 5 years now and have had a return of around 28-29 MPG fairly constantly which is better than most. I bought a secondhand Discovery transfer box that has a ratio of 1.22 compared to the 1.44 I have at the moment. The idea of the Discovery box was lower revs for the same speed but the whole of the gear chain would be altered not just 5th gear which would effect the acceleration and pulling power I have at the moment. With fuel prices getting ever higher I bit the bullet and shelled out for a Roamerdrive unit. Basically this is a real overdrive unit that adds an extra gear to the 5 I already have. So when cruising on the motorway I'd drop into the new 6th gear and this reduces the overall RPM by 28% with a suggested 15% fuel saving! It can also be used in the lower gears again with the RPM reduced by 28%. You just don't want to try and pull away with it engaged although this has caused be no issues when I forget! You wouldn't want to do this if you were towing though. The Roamerdrive fits on the back of the original transfer box when you remove the PTO cover. Watch the video's unfold as I explain my take on the Discovery box and the Roamerdrive and the fitting and road tests both before and after the Roamerdrive gets installed.

Roamerdrive fuel usage results after about 4,500miles and 10 tank fills.

33.64 32.042mpg or 10.57% better on last 10 fills. 33.96 Last 2 tank fills, drove like I stole it! Speed = 70mph and actually got 33.80MPG!
30.65
30.58 31.75 30.72 31.24 32.41 32.87 32.87 mpg on first full tank after Roamerdrive drive fitted 27.81 6 Fills before Roamerdrive fitted average of 28.98mpg on 6 fills 29.48.
27.89 29.70 29.55 29.47

Keep a lookout for further videos in this series.

Link to my Roamerdrive video Part 1: https://youtu.be/nk2pWa6ZSzI Link to my Roamerdrive video Part 2: https://youtu.be/g_Rzgl5te74 Link to my Roamerdrive MPG update first tank: https://youtu.be/IlqBn1W7mIg Link to my Roamerdrive noise reduction: https://youtu.be/ZIIONav4GZc

Links to the Roamerdrive site in Canada: http://roamerdrive.com ... https://www.youtube.com/watch?v=0TDd5Wn1f8s