Ngk Tr55 ?
 

I am thinking of changing the plugs in my truck, the reason being is I have bosch plugs in there now and have heard bad things about them. Anyway I was searching for NGK Plugs and have found them at my local auto parts store I just dont know which ones you guys are reffering to when you say ngk TR55 they have a couple that say that. (1) & (2) & (3) say TR55

1.NGK 3951
V-Power Plug; TR55; @ Gap .060 @
1 Year Replacement Warranty $1.68 each

2. NGK 3403
G-Power Platinum Plug; TR55GP; @ Gap .060 @
3 Month Limited Warranty $2.99 each

3. NGK 7164
Iridium IX Plug; TR55IX; @ Gap Preset @
3 Month Limited Warranty $6.96 each


4. NGK 7862
OE Style Laser Platinum; PZTR5A-15; @ Gap .060 @
3 Month Limited Warranty $9.99 each



WHich one of these do you guys recommend?

Does anyone know why the cheapest one listed (1) offers a one year warranty and the other three only offer 3 months?

Is there any advantage to using the # (3)iridium or (4)oem style laser platinum plugs?

I hear the iridium plugs are awesome but dont last as long as the OEM plugs. I have read the stock OEM plugs are just as good as the NGK's.

thr ngk tr55's are gapped at 50 and work very well. thre ngk iridiums work great as long as you are not f/i. go ngk dude.