Quote:
Originally Posted by TheUltimateBohab
I put these plugs in my Runner and they absolutely Rock the starter doesn't even barely turn before it's running
2008 TOYOTA 4RUNNER 4.0L V6 Spark Plug | RockAuto
The very bottom ones the NGK ruthenium or whatever also run premium will help with your throttle response problem when I first bought it I had a very small Miss at highway speeds I put in a thing of Chevron Techron with a premium tank and it stopped the Miss dead I also changed out my spark plugs with the ones I posted and it made a lot of difference the dealership I bought it from had put two different kinds of plugs in both copper and those bastards were so worn out at 116000 miles that I don't know how it ran at all like jokishly terrible I figured they had to have been used when they put them in.....
But yeah if you haven't already bought your plugs and put them in try those bottom ones I think it's worth the extra few dollars
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Just changed my plugs to Denso K20HR-U11 oem copper. It runs way better. Throttle response is better, feels like a dream.
I did notice some oil on one plug and a bit in the well. I presume it needs gasket change. I would love to do it myself, but without a garage and a lot of research I think I'm stuck letting my mechanic fix it.