Shift light???

[AstoN]

Well its obviously not going to be for fuel economy its for performance

Well obviously its not for fuel economy no, hence the point of my post in them calling it "optimum gear change" when blatently its not. Its not much in way of performance either, cant see hitting the rev limiter in every gear helping performance much.

Just admit you're wrong and shut it. You're trying to be clever with words, no matter what you think it should be, you aren't the person who designed the feature. Only the people who put it there can really say what it is and they have, so just accept that.

Why the f**k would you think they'd put an 'optimum efficiency' light (that's not even how Renault worded it) up near the limiter, fool it's a bloody sports car not a cruiser.

 

[Diesel_Power]

Ha ha, thread dredge with handbags.

How am i wrong? Renault describe it as the "optimum gear change indicator" when most of the industry (unless Renault exclusively exclude themselves from this) use "optimum gear change indicator" as a means of informing the driver its the best time to change gear either up or down so there getting the maximum efficieny from their engine in terms of economy. Its a shift warning light. Im not trying to be clever with words at all, its just common sense, no need to rant at me is there?

 

[Bezza4]

Can't be bothered to read all 3 pages. The last 2 posts says enough.

What manufacturers use an 'optimum gear change indicator' to inform the driver of the best time to change gear either up or down so they're getting the maximum efficieny from their engine in terms of economy? I have never seen this function. I have heard of it in terms of getting the best performance out of the car, like with the Clio. Ferrari's and formula 1 cars for example use it to tell the driver when to change gear to get best performance, not fuel economy.

 

[Diesel_Power]

Its not an F1 car, not even a sports car.

Anyway your question

"What manufacturers use an 'optimum gear change indicator' to inform the driver of the best time to change gear either up or down so they're getting the maximum efficieny from their engine in terms of economy? I have never seen this function."

go here:

http://www.bmw.co.uk/bmwuk/efficient_dynamics/

Click on the "efficient technologies"

Then theres a nice section on "gear shift indicator". Read it. Question asnwered? Good.

Changing gear just before hitting the limiter is not "optimum" in any regard, if it is, id love to know how.

 

[Rich]

I guess Renault saw the error of there ways as it was changed to over rev warning light in the 182 manual.

 

[Bezza4]

What's with the attitude? I only asked a question as I had not seen it on a car before. And where did I say the Clio was an F1 car? I was simply saying that this feature is used on such car and therefore assumed this is something similar to what Renault were trying to achieve, with the 172 (before it was changed to over revving light).

On most cars is the peak power not just before the rev limiter? Therefore I would say that changing gear just before the rev limiter and therefore just after the peak power would be the best time to change gear if you are trying to get the 'optimum' performance out of the car.

 

[Andyman]

Never had a shift light on mine from the factory but does this light come on just before your about tho hit the rev limiter yes or no???

If yes, then its a bloody shift light no matter how its worded end of

 

[Diesel_Power]

What's with the attitude? I only asked a question as I had not seen it on a car before. And where did I say the Clio was an F1 car? I was simply saying that this feature is used on such car and therefore assumed this is something similar to what Renault were trying to achieve, with the 172 (before it was changed to over revving light).

On most cars is the peak power not just before the rev limiter? Therefore I would say that changing gear just before the rev limiter and therefore just after the peak power would be the best time to change gear if you are trying to get the 'optimum' performance out of the car.

There no attitude, i was just frustrated that you only read the final 2 comments and questioned me on something ive repeated on page 2 over and over.

If an F1 car has an optimum gear change indicator built it then id say it was safe to assume that its for performance, if a Toyota Prius has one built in, its safe to say that its for economy. The point ive been trying to hammer home is that changing gear when this warning light appears on your dash is that either way its not there for performance or economy.

As Rich also said, its now caleld the over revving warning light. Much more suitable.

 

[Andyman]

If it was for economy it would be coming on at 2 thousand rpm.

 

[Diesel_Power]

If it was for economy it would be coming on at 2 thousand rpm.

I said a very similar line on page 2. Well done. Someones grasped the concept.:clown:

 

[Bezza4]

There no attitude, i was just frustrated that you only read the final 2 comments and questioned me on something ive repeated on page 2 over and over.

If an F1 car has an optimum gear change indicator built it then id say it was safe to assume that its for performance, if a Toyota Prius has one built in, its safe to say that its for economy. The point ive been trying to hammer home is that changing gear when this warning light appears on your dash is that either way its not there for performance or economy.

As Rich also said, its now caleld the over revving warning light. Much more suitable.

If that gets you frustrated think you need to chill out a bit.

RenaultSport's are designed with one thing in mind, therefore I would assume that it was more for performance than economy.

But as also said on the 172 (what I had) it is called an optimum gear change light. Therefore suggesting it is the best time to change. The fact that it is now a warning light would obviously suggest it is not the best time. Speak to Renault about this, and don't get so upset over someone disagreeing with you because Renault themselves can't decide what it is.

 

[Diesel_Power]

There no attitude, i was just frustrated that you only read the final 2 comments and questioned me on something ive repeated on page 2 over and over.

If an F1 car has an optimum gear change indicator built it then id say it was safe to assume that its for performance, if a Toyota Prius has one built in, its safe to say that its for economy. The point ive been trying to hammer home is that changing gear when this warning light appears on your dash is that either way its not there for performance or economy.

As Rich also said, its now caleld the over revving warning light. Much more suitable.

If that gets you frustrated think you need to chill out a bit.

RenaultSport's are designed with one thing in mind, therefore I would assume that it was more for performance than economy.

But as also said on the 172 (what I had) it is called an optimum gear change light. Therefore suggesting it is the best time to change. The fact that it is now a warning light would obviously suggest it is not the best time. Speak to Renault about this, and don't get so upset over someone disagreeing with you because Renault themselves can't decide what it is.

Well im sure most people would get frustrated having to repeat themselves because others couldnt be bothered to read, wouldnt you? I am rather "chilled" out hence why i didnt bite at Astons comment at the top of the page which was hardly "chilled". Moving on anyway.

Its not performance for the exact reasons ive given before. Lets line a couple of 172s up you go with the optimum gear changing route and ill go with my own route and we will see who comes out on top, you would be eating gearboxes along the way and loosing in my opinion. Nothing optimum about it.

 

[Noodle999]

It's referring to optimum power output in the sense that it's the right moment to change gear in order to maintain the maximum power delivery, i.e. it's based on you being in the peak power band in the gear you're in and the fact that you should land in it, or as close to it as possible, in the next gear.

I don't know about others but I know when to change gear in my car and if I'm looking I'll sometimes see a very brief flash of the light, whereas other times I won't see it at all. When it initially appears it is not a warning that you are over-revving, but rather a warning that you're about to - in my car at least, if you change gear when you see it, you won't hit the limiter.

I suppose in reality whether you feel you could use it as an instruction to shift depends on your own reactions

 

[Diesel_Power]

Would taking it to the end of the rev range result in maximum peformance though? I beg to differ. Im aware that your not hitting the limiter when its on but if you do see the light before your heading for the clutch then its a good indication that your 90% likely to hit the limiter which is rather pointless because you should be heading to change gear before the light comes on anyway, lol.

 

[Rich]

Max power on mine was obtained at 7055 so you need to be up there to get the best out of them.

 

[Bezza4]

It's referring to optimum power output in the sense that it's the right moment to change gear in order to maintain the maximum power delivery, i.e. it's based on you being in the peak power band in the gear you're in and the fact that you should land in it, or as close to it as possible, in the next gear.

I don't know about others but I know when to change gear in my car and if I'm looking I'll sometimes see a very brief flash of the light, whereas other times I won't see it at all. When it initially appears it is not a warning that you are over-revving, but rather a warning that you're about to - in my car at least, if you change gear when you see it, you won't hit the limiter.

I suppose in reality whether you feel you could use it as an instruction to shift depends on your own reactions

Max power on mine was obtained at 7055 so you need to be up there to get the best out of them.

Agree with both. If you can change gear on or as close to the gear change light (or warning light in a 182) you will be achieving the optimum change to maintain the maximum power delivery as Noodle says.

 

[Diesel_Power]

So why would Renault now call it the over revving warning light? Both Rich and Noodle say you have to be on the limit or near it and im assuming they both drive mk2 182s but Rich also said its the over revving warning light? Surely over revving the engine isnt optimum and doesnt the mk1 work in the same way as the mk2?

 

[Bezza4]

So why would Renault now call it the over revving warning light? Both Rich and Noodle say you have to be on the limit or near it and im assuming they both drive mk2 182s but Rich also said its the over revving warning light? Surely over revving the engine isnt optimum and doesnt the mk1 work in the same way as the mk2?

When it initially appears it is not a warning that you are over-revving, but rather a warning that you're about to - in my car at least, if you change gear when you see it, you won't hit the limiter.

 

[Diesel_Power]

Ill concede defeat seeing as though just about everyone disagrees with me but i still think its an aid to tell you that your about to hurt your gearbox rather than tell you your doing a great job and a gearchange is required within the next 0.2 seconds before it bounces off the limiter.

 

[mattjk]

Definitions of optimum on the Web:

• [SIZE=-1]
• 1. The best. Usually refers to a most preferred choice by consumers subject to a budget constraint, a profit maximizing choice by firms or ...

The best - So like I said before optimum is to vague it could mean lots of things.
[/SIZE]

 

[nicknick]

If I see this light when I'm driving it either means I've over-revved it or I'm not looking at the road. I know when to change gear.

 

[Peperami]

I would also like to point out that 'over rev light' is also wrong cat 171. If you get your Renault spec sheet or price guide out it is actually an 'Optimum Gear Change Indicator'. I think Shift Light is closer to the mark. ;-)

Any useful suggestions as to what could be causing the problem anyone?

Car reaches peak power way before that light, so how is it an optimum gear change indicator... ?

 

[Diesel_Power]

I would also like to point out that 'over rev light' is also wrong cat 171. If you get your Renault spec sheet or price guide out it is actually an 'Optimum Gear Change Indicator'. I think Shift Light is closer to the mark. ;-)

Any useful suggestions as to what could be causing the problem anyone?

Car reaches peak power way before that light, so how is it an optimum gear change indicator... ?

Apparently its best to change after that when the light is on. Like i said way back on page 2, its not an optimum but ive given up hope trying to convince everyone and ill just change when im ready.

 

[Andyman]

If I see this light when I'm driving it either means I've over-revved it or I'm not looking at the road. I know when to change gear.

You clearly dont rev your car much which is good for the next owner :rasp: