Replaced plugs tonight. Found a killer deal.

[Maleficio]

Mine calls for the silver-tipped plugs. Spent $65 on the last set at CarQuest, found this set on eBay for much less.

eBay - New & used electronics, cars, apparel, collectibles, sporting goods & more at low prices

[MPDano]

Maleficio, 99% of us run Copper Plugs since there were no benefits of running Silvers.

Here is my Thread. I too go schooled on which ones were correct and recommended, but a very knowledgeable source chimed in a threw down some facts.

Bosch Copper WR7DC for 4.7 and WR8DC for the 4.5

Changin' Spark Plugs

[Mrmerlin]

Use Bosch part # 7900=WR7DC
The WR8DC may be too hot of a plug

[Maleficio]

Originally Posted by MPDano

Maleficio, 99% of us run Copper Plugs since there were no benefits of running Silvers.

Here is my Thread. I too go schooled on which ones were correct and recommended, but a very knowledgeable source chimed in a threw down some facts.

Bosch Copper WR7DC for 4.7 and WR8DC for the 4.5

Changin' Spark Plugs

Ok. I'll read it this afternoon.

[MPDano]

Originally Posted by Maleficio

Ok. I'll read it this afternoon.

Just use what you got, just think about it for the next time around.

[Maleficio]

I once tried out copper plugs. AC Delco, I think. The car felt anemic. Put in the silvers, car came to life. Granted, they weren't the real Bosch plugs.

[MPDano]

Bosch Coppers. No need to experiment with other Brands.

[Danglerb]

Rock auto has good sales from time to time, so I bought a few sets of Bosch from 5 to 8, and plan to go to the coldest practical plug once I have the AFR pretty tight.

[Maleficio]

Originally Posted by Danglerb

Rock auto has good sales from time to time, so I bought a few sets of Bosch from 5 to 8, and plan to go to the coldest practical plug once I have the AFR pretty tight.

You left something out of your post.

[dcrasta]

Bosch Plugs for German cars
NGK plugs for Japanese Cars
MotorCraft for Ford
AC/Delco for GM
Champion for Chrysler

Never failed me (This rule of thumb).