BHPian SoumenD recently shared this with other enthusiasts: E20 petrol effect? Mileage reduced by ~12% So my 2019 BS-IV Jazz CVT is ~6.5 years old now and has clocked ~31k kms. Last few months I have noticed reduced fuel efficiency both indicated(on MID) and by T2T method. I tank up every time till auto-cut & reset trip B. Drive it around till the last 2 bars appear and refill again. Usually it used to return ~400 kms range in this period with mileage being ~12kmpl. Now on same route & similar traffic I see the two bars show up within ~350kms and overall mileage comes ~10.5kmpl. Initial few months I thought maybe its because of tyre pressure or some other issue. But now I notice this has been a constant phenomenon over quite a few months. Do note I service it religiously every 6 months as per manual inspite of low running(~400-500kms a month) and at every tankfull tyre pressure is checked and topped up. Usually refill was done once a month, now its once in ~3 weeks, thanks to the reduced mileage. I have been refilling at the same HP station near my home for 5 years now. Anybody else noticed this? Read BHPian comments for more insights and information.
