Wrong spark plugs??
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Intermediate
Joined: Nov 2017
Posts: 488
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From: Montreal, QC
Wrong spark plugs??
Hi everyone, i was thinking about the spark plugs i hade changed out on my car a few years ago (for my 2009 rx350). I had ordered them from Rauto.
i just looked today in the owners manual, which says to use: FK20HR11 plugs.
on the rock site, there are 2 different Denso Iridium plugs. there was the Iridium TT (4704) plug and the Iridium long life (3426). Both plugs have a slight gap difference too. I installed the 4704 plugs. Is this okay? I think the car runs fine. I do find that at idle the engine isn't supper smooth, i can stiff feel the engine is on, and ever so slight valve tick on cold startup.
And info or advice welcome. Thanks
fab
i just looked today in the owners manual, which says to use: FK20HR11 plugs.
on the rock site, there are 2 different Denso Iridium plugs. there was the Iridium TT (4704) plug and the Iridium long life (3426). Both plugs have a slight gap difference too. I installed the 4704 plugs. Is this okay? I think the car runs fine. I do find that at idle the engine isn't supper smooth, i can stiff feel the engine is on, and ever so slight valve tick on cold startup.
And info or advice welcome. Thanks
fab
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