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99 v6 Taco... no high performance modifications to it...so i'm not sure what to get. I went to the local stealership and they had the denso for like $3. I was thinking they are supposed to be like $10 or so... I went to Napa and they said NGK. Now I'm not sure which to get. Any info would be great. Thanks and sorry for the Noob question.
 

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You have the V6 engine. I believe the V6's from the factory came with Denso plugs on the driver's side and NGK on the passenger side? Hopefully someone else will chime in and confirm that.
 

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Yep - and the denso wear alot more wore than the NGK on my truck. I recommend the NGK's

You have the V6 engine. I believe the V6's from the factory came with Denso plugs on the driver's side and NGK on the passenger side? Hopefully someone else will chime in and confirm that.
 

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X2

Just changed mine out not too long ago and went with the factory config due to lack of funds. I made the mistake of getting platinums (very bad for a waste spark setup - I think that is the technical term). After much searching I found three preferred options:

1) Factory $
2) All NGK $$
3) Iridiums $$$$

I'll probably do the Iridiums down the road so I don't have to do it again for ~100k miles.
 

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Stay away from Bosch. They ran great for a day or two but after that they sucked, and my milage dropped. My refunds pending right now.
 

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Stay away from Bosch. They ran great for a day or two but after that they sucked, and my milage dropped. My refunds pending right now.
You know, now that you mention it, I just put Bosch Platinums in mine about 800 miles ago, and it has since seemed to run... well, a lot wussier. And the milage isn't doing so hot, either. I hadn't suspected the spark plugs as being the cause (honestly, I was of the "they're all the same, right?" mentality). Maybe I'll shell out the extra bucks for a better brand/variety!

-Radar
 

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A lot of other users also have problems with the ceramic insulators on the Boshs's breaking and falling into the motor.

My brother has had this happened to him. 94 Silverado, and 6 of the 8 plugs didnt have the insulator.
 

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Just stick with OEMs.
 

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Don't buy Bosch (anything)
Don't bother spending the money on Iridiums they aren't worth it (no they will not go for 100k mine barely made 50k and I should have changed them long before that)

Stick with Denso or NGK factory replacement plugs.
 

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ok so whatever the stealership sales for it. that will work?
Yep, the dealer should have both Denso and NKG plugs available. I know most people just replace them with Denso all the way around, or you could go with the factory configuration as stated above. Denso's on the driver's side, NKG's on the passenger side.
 

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I just put Bosch Platinums i..... Maybe I'll shell out the extra bucks for a better brand/variety!
-Radar
Actually- the OEM Densos are cheaper than the Bosch plugs
 

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What is the purpose of running denso's on one side and NGK's on the other? Does is provide more thorough combustion? I don't think I've heard of that before on any vehicle.
 

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What is the purpose of running denso's on one side and NGK's on the other? Does is provide more thorough combustion? I don't think I've heard of that before on any vehicle.
I honestly don't know the answer to your question. I'm just telling the original poster that Denso's on the driver's side and NKG on the passenger side is how the plugs come from the factory on the V 6's. Maybe your question would best be answer from Toyota themselves since they are the one's who arrange them that way. If it were me, I'd keep it simple and just get OEM Denso's all the way around. With the 4 banger, it's just 4 plugs running on top of the engine, and I have Denso's there myself and have never had a problem.
 

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wow - denso wear faster than NGK's
How have you come to this conclusion?
Please give specific mileage for both sides and how many times you have changed them
 
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