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Redex mis-application!

Engine, gearbox, exhaust and other drivetrain issues

Post Mon Jun 18, 2018 9:10 pm
wilsofar Regular
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Had a brain fade whilst cleaning/checking out my new 156.

I found a half bottle of recently purchased Redex, so I thought I would empty it in somehow assuming that there was a decent amount of fuel in the tank.

WRONG! There was just 30 miles left.

On starting up sounded like an old fashioned large measure of choke and poor running and of course the Engine Management Light came on.

Filled the tank full of Tesco Momentum and although I can drive it without too much problem it is still running oddly,and when I boot it it sounds as if the air filter has been removed and emits quite a rorty sound (I've only just got the car so it might have done that anyway -anybody?)

Has anyone done similar and how long will it take to get back to normality and will it run better once the EML has been reset.

I feel such a fool -the RCZ has enough underlying problems without me creating more!
Will there be any lasting damage?


Post Tue Jun 19, 2018 12:35 pm
tianorth User avatar

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I thought that the additive would have been more prone to ignition (better than fuel).
It may just have been waiting to do that anyway and adding the additive was just coincidence.

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Tia2 is a 2013 RCZ Magnetic in Black with a 2litre diesel engine
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Tia3 is a 2015 RCZ-R in Mercury Grey with a 1.6litre petrol engine, oh and 270 bhp
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Post Wed Jun 20, 2018 7:10 am
666 Regular
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Dont put anything in petrol it has aditives in it already ...

Post Wed Jun 20, 2018 8:58 am
DKZ5745 User avatar

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I have added half a bottle of redex to every full tank for the last 5 years.
Mk 2 GT200 Moroccan Red

Post Wed Jun 20, 2018 10:50 am
666 Regular
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Petrol company buys gasoline at refinery adds aditives for better combustion, and against deposits, so its already in it ...
Dont waste money, same for fuel put cheapest, if you put most expensive in R it will gain 3 hp ...
All fuel is made on EU standard

Post Wed Jun 20, 2018 3:44 pm
DKZ5745 User avatar

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It has been proven many times that "supermarket fuel" can have harmful effects on engines, especially performance ones. Water has been found in supermarket fuel, along with other contaminants.

When petrol companies go to great lengths to develop higher octane fuels, often for use in extreme conditions such as F1, I for one will always be prepared to pay a small premium, even if the benefits are relatively small.

If you don't want to get that little bit more HP from your engine, buy a Nissan Micra, they have a bit more room inside them too, and the suspension is a bit more comfortable, so you wont spill your cup of tea while driving.
If however, you bought an RCZ for performance, as well as looks, I don't understand why you wouldn't try anything and everything to improve that, even if its only in a few small measures, such as better air filter (proven small gain) higher octane fuel (proven small gain).

I would love to put on lower suspension, swap the exhaust for a straight through racing version with quad tips, put in a larger turbo etc etc, however, life gets in the way of dreams sometimes, so every little small gain that I can do, I will.

Maybe its a nationality thing, I don't mind being given advice, especially from people who know what they are talking about, but I'm not quite so keen on being told what I should do or not do with my car.

We did have a member some time ago that continuously tried that, he was called Wrapper
Mk 2 GT200 Moroccan Red

Post Wed Jun 20, 2018 4:28 pm
RCZ-R User avatar

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I have been using only Shell vpower or BP ultimate fuels in my RCZ (ok, maybe once or twice something else, especially in those deep countryside areas) but still the engine/injectors got clogged. This cannot be entirely prevented. Even with my driving profile with over 80% on autobahns and high speed pace.

Since weeks I am applying some fuel add-ons and it helps. The injectors got free and the engine runs a bit better. Performance-wise as well.

Now I am up to the next step, to decoke the intake. I still have to find a shop doing that. Germany is not a service-friendly environment. They are good at selling things. But not at fixing. They would gladly sell me a new engine head + intake, no problem :lol:
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Post Wed Jun 20, 2018 11:57 pm
Plecodoras User avatar

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DKZ5745 wrote:
It has been proven many times that "supermarket fuel" can have harmful effects on engines, especially performance ones. Water has been found in supermarket fuel, along with other contaminants.

When petrol companies go to great lengths to develop higher octane fuels, often for use in extreme conditions such as F1, I for one will always be prepared to pay a small premium, even if the benefits are relatively small.

If you don't want to get that little bit more HP from your engine, buy a Nissan Micra, they have a bit more room inside them too, and the suspension is a bit more comfortable, so you wont spill your cup of tea while driving.
If however, you bought an RCZ for performance, as well as looks, I don't understand why you wouldn't try anything and everything to improve that, even if its only in a few small measures, such as better air filter (proven small gain) higher octane fuel (proven small gain).

I would love to put on lower suspension, swap the exhaust for a straight through racing version with quad tips, put in a larger turbo etc etc, however, life gets in the way of dreams sometimes, so every little small gain that I can do, I will.

Maybe its a nationality thing, I don't mind being given advice, especially from people who know what they are talking about, but I'm not quite so keen on being told what I should do or not do with my car.

We did have a member some time ago that continuously tried that, he was called Wrapper


Yeah and we all know what happened to him .......

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As the back benchers say " here here " ! :thumbup:
:lol: Laugh and the whole world laughs with you.... or is that at you? :eusa-think:

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Roaring Thunder Gloss flip colour wrap.

Post Thu Jun 21, 2018 7:46 am
stewartwillsher User avatar

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Plecodoras wrote:
DKZ5745 wrote:
It has been proven many times that "supermarket fuel" can have harmful effects on engines, especially performance ones. Water has been found in supermarket fuel, along with other contaminants.

When petrol companies go to great lengths to develop higher octane fuels, often for use in extreme conditions such as F1, I for one will always be prepared to pay a small premium, even if the benefits are relatively small.

If you don't want to get that little bit more HP from your engine, buy a Nissan Micra, they have a bit more room inside them too, and the suspension is a bit more comfortable, so you wont spill your cup of tea while driving.
If however, you bought an RCZ for performance, as well as looks, I don't understand why you wouldn't try anything and everything to improve that, even if its only in a few small measures, such as better air filter (proven small gain) higher octane fuel (proven small gain).

I would love to put on lower suspension, swap the exhaust for a straight through racing version with quad tips, put in a larger turbo etc etc, however, life gets in the way of dreams sometimes, so every little small gain that I can do, I will.

Maybe its a nationality thing, I don't mind being given advice, especially from people who know what they are talking about, but I'm not quite so keen on being told what I should do or not do with my car.

We did have a member some time ago that continuously tried that, he was called Wrapper


Yeah and we all know what happened to him .......

Image

As the back benchers say " here here " ! :thumbup:

FOILED! :lol:
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Post Thu Jun 21, 2018 7:58 am
ONLY AEK User avatar

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666 wrote:
Petrol company buys gasoline at refinery adds aditives for better combustion, and against deposits, so its already in it ...
Dont waste money, same for fuel put cheapest, if you put most expensive in R it will gain 3 hp ...
All fuel is made on EU standard



i dont know how things are in your country but it is proven many times that fuels are not the same everywhere
in my country you find differences from shop to shop even if they all are shell's shops

maybe you live in paradise, maybe its the first time you bought a car and have your own theories but as i said previously in another thread you cant be more wrong
thp 156 with 268hp!!!!!!!!

Post Thu Jun 21, 2018 8:43 am
stewartwillsher User avatar

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Once upon a time, in the days of tiger tails and fluffy dice and chequered go-faster tape, the other must have adornment was an oval STP sticker.
I don't think many knew what STP was and even my knowledge was limited to Americans using it as an additive, similarly to Redex.
Am I right on that?
"La Gata Negra" 2.0 HDI 2014 Swiss spec fully loaded.
"Bus" 7 seat 5008 1.6HDI 2014.
"Purple People Eater" 108 1.2 PureTech 2016 Top fully loaded.
"Animal" Linhai 300 4x4 ATV 2008.

Post Wed Jul 04, 2018 6:59 pm
wilsofar Regular
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No -sorry - STP was an oil additive.

Post Wed Jul 04, 2018 7:18 pm
stewartwillsher User avatar

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wilsofar wrote:
No -sorry - STP was an oil additive.

Yes/No ... both.
Originally an oil treatment, then in the sixties a fuel additive also.
Now, you name it, they'll flog it!
http://www.stp.eu/en/about-stp/stp-history
http://www.stp.eu/en/products/oil-additives
http://www.stp.eu/en/products/fuel-addi ... comparison
"La Gata Negra" 2.0 HDI 2014 Swiss spec fully loaded.
"Bus" 7 seat 5008 1.6HDI 2014.
"Purple People Eater" 108 1.2 PureTech 2016 Top fully loaded.
"Animal" Linhai 300 4x4 ATV 2008.


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