Plugs

How many people have changed there plugs at 60000 miles and what plug did you put back in. Thanks

 

Which year vehicle, and engine?

 

I had a slight stumble at idle and replaced my plugs with the stock irridiums at 58k, stumble went away. I also cleaned my throttle body which had a lot of carbon in it at this time, chances are the throttle body was the problem. The irridiums are supposed to last 100k, either way my engine idles like new now.

 

I am a Denso fan. Shoot, half of the engine comes with them anyway from the factory.

For you, Denso IKH20s

 

I don't remember which style specifically of Denso comes from the factory. I think they are the IKH20's. I know when they install the TRD s/c, that they upgrade them to IKH22's. Which are a step colder.

The other head of the engine come with NGK plugs. I have no idea which style those are.

 

I agree with the others - buy the OEM replacement plugs. Personally, I'm an advocate for using OEM replacement parts wherever needed and when available. Older vehicles sometimes leaves the owner having to buy aftermarket without a choice, so do the research and buy with more confidence.

I guess I'm surprised with the replacement interval. I had a 2000 Ranger that required replacement at 100K. However, Haynes recommended replacement at 60K despite manufacturer's recommendation. When I took the plugs out, they showed wear, but I didn't have any loss in performance (power or MPGs). I'd assume Toyota would have done something similar. My Honda Accord recommended 100K as well.

Do Tacomas' really require replacement at 30K? If not, I'd follow the manufacturer's recommended interval unless the computer is throwing a code requiring replacement.

 

Very well said sir.

Side note: Turbo charged.

 

Thanks Chris. I guess I'm a little surprised that the other manufacturers moved to platinum plugs with longer intervals and Toyota did not (at least for the Tacoma V6s). But if the folks at Toyota spec 30K, I'd replace them on interval with OEM replacements.

I had a Nissan Stanza that ran on NGKs. Decent plugs as I recall.

 

Same for me. Plus, what I have pulled of of one of my used engines. Lol. Most likely just chance though.

 

I change mine every 30K. Just did them on my 4Runner on Saturday. Put the factory Denso's back in, got all 6 of them from the dealer for $22 (employee discount).

Had NGK's in them from the last tune up I did at 60K.

Here's how they looked.

 

Thanks for the explanation Chris. I was never an advocate of gimmicky plugs (e.g. the split fires). As others can attest to, poor idles, off gas mileage, engine codes, etc. are proof enough. I suppose that there are a few owners out there that have intimate knowledge about their vehicles, have built and tuned their engines to run with aftermarket parts, but most owners (me) are better off with the stock replacements. Otherwise, I'm likely to make matters worse...when trying to make them better.

 

Well thanks for the info,I will use the toyota plugs but just got the tacoma so maybe toyota did it before I got it....( YA RIGHT)

 

I just did the plugs in mine. 92,000 miles and still had the stock ngk/denso setup, and they were really worn down.

Replaced them with IKH20s, runs better now.