I run NGK's in all my vehicles and I've never had the seafoam foul them, yet.

 

so I guess they are known to be total crap..
last time I buy plugs recommended to be the best buy the parts counter guy,, lol

 

I use ONLY AC Delco 41-985 Iridium plugs in mine. Never any problems. But to simplify my retort.,.....Bosch never finds it's way onto my trucks or cars.

 

my dad had bosch platinum +4 put in his 98 explorer. thing missfired from the very first start. i put in motorcrafts. stopped missfireing, ran great

 

I wouldnt be so quick to dismiss the seafoam, it really is great stuff.

 

I'll vouch for the AC Delco 41-985 Iridium's another + is they where only around 3 dollars a piece if I remember correctly

 

Don't even get me started on "the all knowing parts guys". Last time I asked for a set of TR6's for my truck the guy at the counter had to get the manager. The manager then went to a book and asked "what's this for a mitsubishi or something". when I told him it was for my truck. He shut the book and walked away and left me standing there. All while condescending me about putting NGK's in a Chevy. What a douchebag! Luckily I had an empty box w/ the part number in the truck so I could get the right plugs.

Sorry. Had to vent. This message board is great automotive therapy.

 

Come on, Didn't you know you can't use foreign plugs in a domestic truck??? HA-HA !!

 

which is funny because my tahoe has the stock Iridium plugs in it. i pulled them out to check them and on one side of the plug it says ac delco Iridium and on the other side it says NGK. hmmm

 

Man you have Bosch plugs. Bosch and Gm don't get along. I had a set and thoes stupid pies off **** plugs, made my truck run like ***. I put i n AC Delcos and it ran like a champ ever sence. Man I miss that truck.