I did some motorway runs and got the following figures at constant speeds...Gegaal wrote: ↑Sat Mar 02, 2019 6:43 pmImpressive!
I am experiencing about 330km (206mi) when driving high way with a cruising speed of approx 105km mostly using cruise control. Nothing special, no rain temp about 11 degrees. Last track (back and forth) hardly any difference in consumption (3.95 vs 3.91 km / kwh). No excessive accelaration but yes, with ACC on.
I got my sw updated this week to 18D ( took 1.5 day) and it feels that range got a liitle worse but that may also be the change in weather. Anyway, quite disappointing. Driving slower is not really an option as setting cruise to 108 is already pretty slow in 130 roads.
I really hope that at 20 degrees I can do 120 km on the high way and still do something like 350. I don’t even dream from 480km as its already frustrating enough to have 400hp and endless torque you actually can not use.
To add: high regen, 20 inch weels and yes, winter tyres!
35.6 kWh/100mi @ 65mph
30.0 kWh/100mi @ 55mph
This was maintaining a constant speed in both directions (there and back).
No account was made for gradient, just maintained a constant speed, but not using Cruise Control. So basically, this is what my car achieves if anyone driving it (I think). Perhaps I should do the same thing with Cruise Control on.
18” wheel on the standard tyres that Jaguar supply with the car. 10degC ambient. It was dry and not too windy.
So the 65mph range is about 15% greater than you are seeing. 18” wheels with their lower rolling mass will probably make about 5% difference compared to the heavier 20” wheels. I also run a couple of PSI extra in my tyres, which may add 1%. It’s not too much of an issue having an extra 2PSI in such big tyres, they already give excellent damping and make the ride in the car very smooth. I have not seen any adverse tyre wear pattern after 7500 miles.
So there is 9% somewhere for you to gain. Maybe your winter tyres are conceding another 5%. That leaves 4% to find. I would think 4% is not worth the effort. You should just drive the car the way you do and enjoy it
Come the warmer weather and summer tyres you will see a significant improvement in range.