OK, I know it's yet another car thread, but it's of crucial importance, like all threads about cars!
During the lockdown, thoughts eventually turned, as they do, to the possible benefits of fitting one of those fancy tuning boxes to our Porsche Macan diesel. Doing the usual research, it did appear to benefit performance and possibly fuel consumption too. On the basis that I could try one and if I wasn't a happy bunny with it, get my money back, I decided to take the plunge.
I settled on the TDUK box, on the basis of good reviews and the fact it used more sensors than the alternatives (Mummy always taught me you could never have too many sensors). It was a right old fiddle to fit, as two of the sensors I needed to get at were buried below several convoluted layers of wiring and pipework, and the plugs were secured with downright stupid connector things.
Anyway, despite my fumbling the device lit its lights correctly & I could set it with a rather smart app. on the iPhone. I left it on its standard setting, and the car definitely felt livelier, with no noticeable hiccups. Yesterday was the first opportunity to test it on a long run, and during our 300 mile trek up to Keswick in the Lake District (yippee!) it performed faultlessly. Up until now, the best mpg I could manage on a long journey was 38 mpg, but yesterday, astonishingly, we got 45mpg! Average speed 68mph so I wasn't hanging around. I confess to being most impressed by this, and I'm rather baffled by how this device works so well. Incidentally, the dreaded call to my insurance company resulted in a bill of...an extra £8.