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Old 03-09-2017, 02:57 AM   #1
frank2005
 
Drives: Toyota Echo RS 2005
Join Date: Dec 2016
Location: Montreal, QC, Canada
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STP Injector Cleaner

waste of money ?

This detergent really cleans injectors?

On the recommended bottle every 10,000km or 6,000 miles

Help keep clean injector
* is it necessary


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Old 03-09-2017, 08:32 AM   #2
ncp13
 
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Even Toyota has a product branded and its 350ml in european market.

Its preventative maintenance . Wont do miracles and wont hurt either.

I use it every time I get a chance. :)
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Old 03-09-2017, 12:00 PM   #3
chief ten bears
 
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you want a product with PEA, polyetheramine. that's what does the actual cleaning. gumout, techron, and even a motomaster fuel system cleaner in canada, all have pea in them.
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Old 03-09-2017, 12:30 PM   #4
bronsin
 
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Quote:
Originally Posted by frank2005 View Post
waste of money ?

This detergent really cleans injectors?

On the recommended bottle every 10,000km or 6,000 miles

Help keep clean injector
* is it necessary


No such requirement in the owners manual under Service.

Every 6000 miles? You gotta be kidding me!

Never had a problem with gunked up injectors and Im 60 years old and keep my cars at least 100k miles.

But I also use brand name gas.
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Old 03-09-2017, 08:16 PM   #5
B.B._07
 
Drives: 07 5dr
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Quote:
Originally Posted by frank2005 View Post
waste of money ?

This detergent really cleans injectors?

On the recommended bottle every 10,000km or 6,000 miles

Help keep clean injector
* is it necessary
Most mechanics that work on a lot of modern Toyota's and Honda's will tell you it's not needed and more a waste of money. If your car is properly maintained you won't need. When I bought the Yaris I got some STP fuel injector cleaner in one of those car care bundles from Walmart and I must say I didn't notice any actual difference. I think it's only worth it on old vehicles with lots of miles that have much simpler and less efficient fuel injection and emission systems.
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Old 03-09-2017, 09:18 PM   #6
SirDigby
 
Drives: 2007 yaris 3 door
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I like BG products. I would only use 44k or supercharge II
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Old 03-10-2017, 10:08 AM   #7
Kaotic Lazagna
 
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Just use top tier gas and none of that cheap stuff that will cause clogged injectors and carbon build up on the valves.
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Old 12-29-2019, 01:47 AM   #8
rayfloyd170
 
Drives: YARIS
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Trying Gumout Regane just for curiosity and i find 2 important observations so far:

1. Increased my usual mpg at close to 20% after initial full tank, cannot believe it at first and i crossed my fingers with the product but somehow it works well for me.


2. Now comes the best observation,

BEFORE when driving and stopping at intersections or any stop lights i occasionally feel like the rpm changes (hiccups) and comes a slight vibration but by no means a big deal since i read somewhere it is normal for all yaris??? (Note: my car has been properly maintained including regular change oils & filters, TB cleaning, spark plug changes, PCV cleaning, transmission oil changes, others)

AFTER: That "hiccup issue at stop lights" is gone now... I suspected there could be mild cleaning done to the fuel injectors/ or combustion chambers as advertised or i may be wrong at this assumption but definitely there is a positive observation up until this time of 1 week using Gumout Regane which contained PEA.
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