Iridium plugs affect fuel economy?

[ahmedstudio]

Do iridium plugs affect fuel economy? Engine consumes more fuel if iridium plugs are used?

@rajaatta @Xulfiqar

[nomi01]

They dnt decrease fuel economy, infact they are slightly better

[ahmedstudio]

Thank you for responding and guiding

[saqibhassan95]

Engine consumes more fuel if iridium plugs are used

In short, no

[ahmedstudio]

Thank you

[rajaatta]

Nomi is correct it givea you an extra omph in driving if you have some attraction toward the responses by throttle.

And plasma plugs are 1 step forward of iridiums but hard to find and are expensive

[ahmedstudio]

Right, with iridium plugs, I do feel great response while accelerating with aggressive foot.

By the way here is some data. LTFTs here are learned values after a 60km run on highway.

IDLE

2470 RPM

3547 RPM

@Hassan1991

[xhaikh1]

What mileage you are getting on these readings?

And of which car these obd pictures are?

[ahmedstudio]

This is 2SZ 1.3 litre engine for Toyota Belta.
I haven't calculated the mileage.

[Hassan1991]

O2 is on the higher side in each picture. But trims are fine. So overall things are good.

[ahmedstudio]

O2 sensor is switching frequently. Let me share the video.