this is my first post in the forum, so hello everybody :-)
I am a Spaniard living in Germany (since too many years already) and proud owner of a Lexus IS250 Sport since one year ago. I use my nickname everywhere, so you can find me in the German Lexus Owners Club and in several Hi-Fi Forums to find out a lot about me ;-)
3. before changing your driving style (point 4) do following – deconnect the car battery (minus pole is enough) for whole night*. This will reset some values in ECU and for next couple of miles it will be in learning mode, so it will accommodate quickly to new driving style. Do not to accelerate hard for next 30-40 miles.
Actually, in the German Lexus Owners club has been explained that there is no learning mode for the driving style, but just the on-board computer logging the exact parameters of the engine to optimize performance. I only drive my Lexus, no idea what is under the hood (but I like it, hehe), but this is contradictory information. I am confused...
4. everyday driving: keep rather higher revs then low, e.g. on 4th, 5th and 6th gear never accelerate under 2.000rpm. Lowest revs for maintaining speed are: on 3rd at 1.600rpm, 4th 1.800rpm, 5th 1.900rpm, 6th 2.100rpm. With full load increase by ~200rpm.
The worse driving style is requiring high power out of low revs – e.g. on 4th at 1.600rpm – lot of fuel goes in the engine without effect, MPG is terrible and the car sluggish. Also, with under revved engine you can not feel your foot movement, because slight change of pedal doesn’t reflect in acceleration, but it does in consumption…
If you need to accelerate quickly, go over 2.500rpm. 2.500-3.500 is ideal for overtaking etc…
Maybe this is good for the diesel, but definately not for the petrol engine, where I do not go beyond 2000rpm often when trying to drive sparingly. And I am sure the automatic gearbox works fine and tends to keep revs between 1200 and 1800. I also have reasonable mileage values.
5. for reasonable MPG in urban driving, you do not need to be slow, just think. This car has excellently small wind drag and it is very heavy – use it where possible. Between the lights you can go 300-500 meters on neutral gear and the speed will decrease from 38 mph to 33 mph (60-52 km/h)
Never use neutral gear when driving. First of all it is dangerous, and on top of this, you will actually increase consumption when doing so. Use a long gear instead. At least that is what experts at ADAC (sort of the German AA) claim (among others) and it makes sense from a technical point of view (it has been measured too, AFAIK).
I do not mean to be a smart-*****, although I know it is a strong entry I am doing here ;-) Specially because I am not an expert by any means, but rather an ignorant quoting what I think I have learnt. So be kind :-D
Increase Your Mileage In Few Steps
in Lexus IS 250 / Lexus IS 250C Club / Lexus IS 220D & IS 200D Club
Posted
Hello Matus,
this is my first post in the forum, so hello everybody :-)
I am a Spaniard living in Germany (since too many years already) and proud owner of a Lexus IS250 Sport since one year ago. I use my nickname everywhere, so you can find me in the German Lexus Owners Club and in several Hi-Fi Forums to find out a lot about me ;-)
Actually, in the German Lexus Owners club has been explained that there is no learning mode for the driving style, but just the on-board computer logging the exact parameters of the engine to optimize performance. I only drive my Lexus, no idea what is under the hood (but I like it, hehe), but this is contradictory information. I am confused...
Maybe this is good for the diesel, but definately not for the petrol engine, where I do not go beyond 2000rpm often when trying to drive sparingly. And I am sure the automatic gearbox works fine and tends to keep revs between 1200 and 1800. I also have reasonable mileage values.
Never use neutral gear when driving. First of all it is dangerous, and on top of this, you will actually increase consumption when doing so. Use a long gear instead. At least that is what experts at ADAC (sort of the German AA) claim (among others) and it makes sense from a technical point of view (it has been measured too, AFAIK).
I do not mean to be a smart-*****, although I know it is a strong entry I am doing here ;-) Specially because I am not an expert by any means, but rather an ignorant quoting what I think I have learnt. So be kind :-D