can a 2014 plugin use denso iridium tt spark plugs

i tried to figure out that answer by looking for a list of all engines in prius cars. if they had the same engine I was assuming that if the above plugs worked in one engine then they would work in all of them. That reasoning originated because when I went to ADAP (an automotive supply house) , their spark plug catalogs did not have anything for the Prius plugin but did have plugs for the Prius C and D models.

I really like the idea of a spark plug arcing between two iridium tips.

What worries me is that they might be too hot or too cold for my plugin and i am mostly worried that
the length of the plug might be too long and hence damage the piston

any thoughts will be appreciated

 

i am not sure what is meant by OEM spec. To some people it may mean a brand and model specified by Toyota. I can appreciate that such an OEM spec will work., especially with Toyota as the company is composed of sound conservative engineers.

But to me a specification is independent of mfr or model. It states the engineering requirements of a device. That value of that
kind of specification is that it hints at the intentions of the engineer. Thus as technology evolves beyond the technology that the engineers had at the time of manufacture, we, as consumers, can make educated decisions as to how we might desire to modify our cars.

An example of the above thinking is that of changing the type of bulb used in our headlights. The key engineering design requirements are a maximum current, and maximum heat rate of the bulb. This spec allows a new technology to be applied. LED lamps offer such a potential as they tend to generate less heat and use less current. I have no idea if currrent LED lamps offer the same lumens or same life, but the gist is that we can safely adopt a new kind of technology if Toyota offered us a way to think instead of demanding a manufacture and model of bulb.

We should be doing this for sparkplugs. They are a critical part to maintain mpg over engine life.


I looked at the plugs specfiied by toyota for the 2014 and they were very old technology. There is no reason to
continue with old technology. Especially if there are notes here and there indicating that toyota has shifted to a hotter plug.

To evaluate whether that shift is relevent to me, i would need to see a list of all the engines from 2014 to the present and the plugs they use. if the plugs have shifted to a hotter plug for the same engine....that suggests that toyota believes they were originally in error.

A good spark is incredibly dependent upon a sharp electrode which permits a high electrical field gradient to ionize the gasses in the region of the electrode. That includes both hot and ground sides. An electrode can never be too sharp if it can withstand the forces applied to the electrode and hold up to degradation due to bombardment. That is why iridium is currently THE metal for plug electrodes.

Clearly, to me, the denso iridium plug with tt is superior to any other plug out there. I want to use it in my 2014 prius plugin but am afraid of the length. I need to know the length of the currently specified plug and the length of the denso iridium tt. If they are the same, i am using it. If the Denso iridium tt is longer, I am not. if the plug is too hot or too cold I will find out with time by looking at it.

can anyone help me further my goal? Does anyone have a list of Toyota engines from 2014 to the present? Does anyone have a list of plugs for those engines? If the Toyota engines are used in cars other than Prius, that is perfectly ok. The key is the engine must be the exact same engine.

 

WELL.....I SHOULD HAVE REALIZED THE BEST PLACE TO FIND JUST WHAT I WAS LOOKING FOR WOULD COME FROM A SPARK PLUG MANUFACTURER.

I FOUND the list i was looking for on the denso site but it was for asian cars and it did not contain the iridium tt plug!!!!

https://www.denso.com/global/en/products-and-services/automotive-service-parts-and-accessories/plug/special/catalog/pdf/catalog_generic.pdf

has anyone foun such a listing for the Americas' and for Iridium TT plugs?

I was almost certain i could pick any country and they would be the same, but note that Japan uses a much warmer plug.

 

WELL.....I SHOULD HAVE REALIZED THE BEST PLACE TO FIND JUST WHAT I WAS LOOKING FOR WOULD COME FROM A SPARK PLUG MANUFACTURER.

I FOUND the list i was looking for on the denso site but it was for asian cars and it did not contain the iridium tt plug!!!!

https://www.denso.com/global/en/products-and-services/automotive-service-parts-and-accessories/plug/special/catalog/pdf/catalog_generic.pdf

has anyone foun such a listing for the Americas' and for Iridium TT plugs?

I was almost certain i could pick any country and they would be the same, but note that Japan uses a much warmer plug.