The Lexus below is at 90k and never had plugs, rides ok but I can tell it needs them. Lexus said it can go till 120K but the manual says 60k. It is a DI engine.
The OEM plug(FK20HBR11) is expensive no matter where you buy it. The best price for a set of six out the door with discounts is about $83. Dealer quoted $35+tx(EACH!) but I think the retail is $18.
Denso also makes a compatible TT Iridium plug. It is $32 out the door for a set of 6 w/discounts. This has a .4 electrode vs the .6 or so in the OEM. I read in some cases they last till 100K but I also read 30K. I have them in my Explorer and it really cleaned up the idle, it idles better than the Lexus now.
Denso plugs are heavily counterfeited and there are many on ebay that are priced too good be true (especially the OEM, and they are in Toyota boxes).
I also see copper plugs for a buck a piece, I'm tempted, can change them out at 20-30K.
I don't know if DI needs that finewire electrode though. Seems those TT plugs create a very precise spark, the thinner the better!
The OEM plug(FK20HBR11) is expensive no matter where you buy it. The best price for a set of six out the door with discounts is about $83. Dealer quoted $35+tx(EACH!) but I think the retail is $18.
Denso also makes a compatible TT Iridium plug. It is $32 out the door for a set of 6 w/discounts. This has a .4 electrode vs the .6 or so in the OEM. I read in some cases they last till 100K but I also read 30K. I have them in my Explorer and it really cleaned up the idle, it idles better than the Lexus now.
Denso plugs are heavily counterfeited and there are many on ebay that are priced too good be true (especially the OEM, and they are in Toyota boxes).
I also see copper plugs for a buck a piece, I'm tempted, can change them out at 20-30K.
I don't know if DI needs that finewire electrode though. Seems those TT plugs create a very precise spark, the thinner the better!