I was looking to get some new spark plugs.. kind of wondering what is the best to buy??

 

NGK all the way. What ever you do, don't use bosch.

 

give me some info on the bosch's. I work at checker auto parts and we had a bosch rep in, and of course he made it seem like his brand of plugs were the only ones on the market, but they seem like a pretty decent plug. Anyways, what kind of experience have you guys had with them. Not to thread jack or anything, but i just want to know.

thank you,
trav

 

I personally had purchased a set of bosch platinums for an older truck I had, (90 GMC), and it ran better before I did the tune up with the bosch plugs. I had the same crappy luck with AC Rapidfire plugs once also. I work at a very large boat, pwc, and atv dealer, and have found that NGK is the only way to go for all engines. I work on the Sea Doo's, Yamaha atv's, Bombardier atv's, and Mercruiser engines, which are GM Vortec motors, and they all come factory with the NGK's. I work on a friend's truck, The Wood Hauler, quite regularly, and when I changed the plugs in his '02 silverado for the NX kit, the stock plugs in his truck said AC Delco on one side and NGK on the other, so I have my stock in NGK plugs and no other. Just my opinion though.

 

NGK TR55 for n/a TR6 for f/i

 

these trucks tend not to like bosch. put in some ngk tr55's and she will run fine.

 

i run the NGK tr55's and going to switch to the TR6 before spraying it

 

i heard that the TR55's are good but i didnt know what others thought. thanks

 

stock ac delco plugs in my truck and chevelle

 

another vote for NGK TR55(NA) or TR6(FI)