Author Topic: Fuel that we use in our Jazz (Read 5245 times)

guest9814 · « **Reply #30 on:** October 25, 2021, 07:05:15 PM »

From 70km/h to 130km/h our engine torque important because engine on this speeds used directly.
And when ice working as generator torque also important, when I recorded in town with car scanner I seen that when ICE run it pushing 5kw of power to move car and another 10-15 kw to charge HV battery so in total load is 20kw and this on flat road and with speed 40km/h
To spin generator with such load not needed torque ?

Kenneve · « **Reply #31 on:** October 25, 2021, 09:49:29 PM »

At 75% efficiency, 20kw is equal to less than 1/2 of the available engine power, so it’s not working particularly hard.

R2D3 · « **Reply #32 on:** October 26, 2021, 02:26:37 PM »

I've owned an MX-5 and BMW X1. For both I was advised not to use V-Power fuel as it would just be a waste of money. Any possible improvement in MPG would be over shadowed by the extra cost of the fuel. When I did try a tank of V-power in the MX-5 there was no noticeable improvement in performance... but then again I never pushed it. Another reason not to use premium fuel.

Kremmen · « **Reply #33 on:** October 26, 2021, 02:56:54 PM »

I agree.

If your engine is optimised for 95 RON, which ours are, then anything else is normally a waste and any perceived mprovement is a placebo effect.

guest9814 · « **Reply #34 on:** October 26, 2021, 08:18:39 PM »

Quote from: Kremmen on October 26, 2021, 02:56:54 PM

I agree.

If your engine is optimised for 95 RON, which ours are, then anything else is normally a waste and any perceived mprovement is a placebo effect.

Maybe i wrongly understand printed in owner manual words - use 95 RON minimum
I understand this as advice not to use fuel with octan rating lower then 95 RON
I currently burning mixture of '95' and 98 RON (30l 95 RON and 10l 98 RON) and i see better fuel economy, for 288 km average fuel economy stay 3.0-3.1l/100km (before mixing i not able to get average below 3.3l/100km) and car computer calculated that with this fuel consumption i still can get 852km to empty.
Maybe i can see better fuel economy because used 95 RON gasoline has this rating only printed on pump and in reality much lower then 95, and by adding 98 RON to this crap i simple get normal minimum recomended fuel that not compromise engine performance.