I stop table just for laughs

[rmvf]

Just for a bit of fun, and having probably the oldest cx5 may 2012, I was wondering how many hours your I stop is reading, ours is 43 hrs and 6 mins and that's for 20k,  95 % urban driving.

[Deeps]

Interesting, I'll check it out next time I'm near the car although the reading will be very low as a result of my switching off i-stop as soon as the engine fires up (when I remember). Total waste of time in my opinion and as such don't want to start a discussion on this topic. 

[rmvf]

Mmm, you are respectfully entitled to your opinion.

[Willpower]

I think the thread has a genuine topicality and has a worthy place on the forum.   Perhaps others may have their opinions which would be welcome.  I don't really want to close this topic with only two opinions. After all that is what forums are for, to put views forward for others to consider and hopefully get more replies. 

As long as the communication remains amiable, I'm happy   
 

[xtrailman]

Ok I found the I stop ok with the manual car, but a pain in the rear with the auto, in fact I haven't fully worked out when it works.
I only know the dam thing turns of when I don't want it too.

On rare occasions I can see an advantage like a certain set of traffic lights where the stop is prolonged, but for all the rest of the time its surplus to requirements, I've started trying to remember to turn it off after I start it up.

[Deeps]

......anyway end of topic, moderator please delete thread thank you kindly sir.

I think the thread is worthy of being left open as it will serve to highlight what others believe i-stop or stop-start serves.

@rmvf - maybe my initial response came across as being somewhat terse which it certainly wasn't meant to be of course and probably down to too much brevity. 

In my opinion one has to weigh up the cost of any possible fuel savings made over the lifetime of the car ( which at best can only be a guess I'm sure you'll agree) when offset against the extra production costs which are obviously passed on to the end purchaser. It would be easy to forget other contributing factors such as the limitation of the type of battery that must be installed especially the wet cell type used by Mazda which I for one am certainly not a big fan of.

Having done a fair amount of reading on the subject, I have formed the opinion that for the annual mileage that I cover and, perhaps more importantly, how this mileage is undertaken, the i-stop function simply isn't worth it. For 99% of the time that I am stopped during a journey it is as a result of an accident/construction work on the motorway where numerous stop-starts repeated over a very short interval and/or once again short interval and repeated start-stops on 'A' roads when approaching roundabouts etc.

I am of the school that believes (rightly or wrongly) that for longer stops e.g. where traffic is completely stopped for a respectable period of time then i-stop/stop-start lends itself to savings on the fuel front but not so for shorter stops. In the case of the longer stops one can always turn the engine off of course.

The following article is worth a read in so much as it supports the use of i-stop with Mazda getting a mention http://home.bt.com/lifestyle/motoring/motoring-features/the-truth-about-stop-start-engines-11363870847326 although I'm still not convinced.

[BigAl]

ours is 43 hrs and 6 mins and that's for 20k, 95 % urban driving.

When my first one (registered Aug 2012) went back last year, I recall it was about at the 27 hour mark. That was at 65,500 miles, but most of my driving would be motorway and/or long distance.

Alan.

[Caldean]

I recall reading somewhere that there is only a benefit if you are stopped for more than eight seconds as you say, just depends on where you drive. Round here we here we've seen most of our circles replaced with lights. Takes much longer than before to get anywhere, and that's in a town where a serious traffic jam involves being stationary for 3 minutes !

[rmvf]

Fair does Deeps, I've picked up my rattle and put it back in the pram, just picked up new cx5 in sonic silver very happy bunny just now, just read your link thanks, am I right in saying that mazda stop start is not the same as all other manufacturers?

[Willpower]

.......................... just picked up new cx5 in sonic silver very happy bunny just now,

Sigh ! !  I don't know.........   I guess that means your profile needs updating now.........  hint hint !   

[Deeps]

am I right in saying that mazda stop start is not the same as all other manufacturers?

Correct, as is the case with many things that fall under the Mazda umbrella of 'SkyActive'. 

[xtrailman]

That link refers to the petrol istop, not the diesel?

[Deeps]

That link refers to the petrol istop, not the diesel?

Not sure how you've come to that conclusion, xtrailman, but to avoid confusion here's another link only this time from Mazda themselves. http://www.mazda.com/en/innovation/technology/env/i-stop/

[xtrailman]

From the Mazda link the diesel system is different, in that I believe it uses the starter motor, while I also believe the petrol does not, just fires two cylinders.

[Deeps]

You've got that the wrong way round old son  read the link once again.