How do I improve the FE of my used Tata Nexon diesel AMT

One question I had was around FE. I get 17-18kmpl on 70% highway, 30% city/hill runs, and I am pretty ok with that.

BHPian zenx recently shared this with other enthusiasts.

So I picked up a 12k kms used diesel XZA+ in good condition a year ago, and have added about 6000 kms since. It drives like a beauty, and the AMT is better than my expectations were from watching a bunch of videos online - no head jerks at all at least that I can perceive.

One question I had was around FE. I get 17-18kmpl on 70% highway, 30% city/hill runs, and I am pretty ok with that. But when I see all the videos and online claims of 22-(hold your breath)26kmpl (!) - I am left wondering if I'm doing something wrong, or if the car needs a good service or filter change. My highway speeds are usually 90-110 with bursts of 120 (I have to slow down even on empty roads because of that irritating continuous beep), and I stay in City mode most of the time, with a switch to the Sports mode here and there for a little fun.

Here's what BHPian Vinod_nair had to say on the matter:

Congrats on your Nexon, just get the air filter cleaned or changed, it's just 340, from mahale/purolator. It's quite a healthy average for a diesel.

Here's what BHPian 400notout had to say on the matter:

My Bs6 diesel gives me 18-19kmpl in the city (Mumbai) where I'm covering 40kms in an hour. This is in sparse traffic conditions. I've not driven much out of city post purchase, but once on a Pune round trip, I got 27 kmpl while returning. It was night time and I was driving at 80kmph and a lot of the route is downhill.

From my experience your average fuel efficiency could be better. Avoid frequent gear shifts, I know its an AMT but regular acceleration and braking yields low efficiency. Try not to idle much. And as @Vinod said, get your filter checked. Hope this helps.

Check out BHPian comments for more insights and information.