Toyota Owners Club - Toyota Forum Messages

Review Your Toyota

Help others when it comes to buying a car like yours, review your Toyota now

In Memory

Les "Giddlepin" Ackroyd - 1951 to 2016  - A well missed friend to everyone. 

AdBlock Warning

Parts of this website do not function properly with AdBlock enabled on your device. To get the best user experience on our website, please disable Adblock for this website (domain) on your browser.


Sign in to follow this  
Followers 0
Hurricane3001

Replacing Original K16R-U11 Spark-Plug With Iridium Bkr5Eix-11

8 posts in this topic

Hi all,

is there someone that have experience to replacing on Corolla 3zz-fe the original Denso K16R-U11 park-plug with NGK iridium BKR5EIX-11?

If yes, there are effective advantages in term of increased performance of the engine and life-span of the iridium spark-plug?

Thanks

Share this post


Link to post
Share on other sites
 

Itll last longer yes, performane will be no gain at all IMHO

Share this post


Link to post
Share on other sites

Hi,

Used the standard NGK BRK5EYA-11 plugs at around £3 each for my 40k and 60k services, no problems with them at all.

On my old lean burn Avensis advised to use the irriduim plugs at about £16 each from Toyota and change every 60k but at that price there is no saving , plus if you have a plug problem it become an expensive exercise with irriduims.

As to any performace gain, technically they are supposed to be better, but never heard any user comment about them being so much more effective, think if they were word would have got around long ago.

If you know your regular mpg and performace over the last few K mlies then it might be worth trying them and seeing if they give any long term gain.

Share this post


Link to post
Share on other sites

Thanks guys,

I already buyed them, and then I will try iridium plugs.

Probably will be also useful to reset(clean) all old inforations stored by the auto-learning mode and restart it again.

Do you know how to do it in my 2002 ECU?

Share this post


Link to post
Share on other sites

Leave battery off for 10 mins

Share this post


Link to post
Share on other sites

After I replaced spark plugs with iridium and used the car for about 10 days, I can say that effectively I noted a little and nice increase of progression in accelleration. Also the "sound" of engine seems more "nice".

Suggestion? I don't think, but probably the little improvement of power do not justify the 3 times major cost of iridium spark plugs.

Share this post


Link to post
Share on other sites

Either your old spark plugs were breaking down enough to feel a change OR

Placebo Effect. The fact is, a set of spark plugs on these standard engines is not going to make any difference what so ever. On a highly strung n/a or even more still on a turbo charged car then yes it would.

Share this post


Link to post
Share on other sites

The first hypothesis is wrong because the old spark plugs were new (only 1000 Km).

The second hypothesis is also wrong, because before to change the spark plugs, I have vaccinated myself against the placebo effect.

When I changed the spark plugs, I was skeptical of any benefits, and I am therefore immune to placebo effects.

The small improvement that I noticed, can be explained by the fact that having the candle needs less energy to build the spark, the same spark occurs a bit earlier than the normal one.

The obvious and direct consequence is that the engine gains a little bit power and torque.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0