It helps keep preiugnition down.

 

Sapper, so you are in Indy? I am a west-sider, Brownsburg actually. My office is out here too.

IndyDurango

 

My wife is from Castleton area, her grandparents are in Ft. Wayne and some family in Muncie. She has friends in the the area. We are usually around the area a couple times a year. Reside in Raleigh, NC my wife misses the Big city.

 

Alright, put on Mopar cap and rotor. New plug wires, couldn't get MSD 8.5, so I put on an Autolite performance. If this holds together and I'm sure it should because the covering at the boots were like rubbing off and the number 8 wire pulled away from the boot to the spark plug completely I'm going to get the autolites 3923's and replace the wires I have for the MSD 8.5. My father just starting working for O'Reilly's auto parts in MN and should be able get them for me at cost (hopefully).

Thanks to all Hydro, Indy, Steve, and Sceintist for all the intel on the real deal of a spark plug. Next ? can I change from coventional Castrol to Synthetic at 126,000 and have no prob, but that's another post in Sept. PEACE!!

 

Whats the best plug for a 2002 Durango 4.7? I was gonna get some Champion iridium plugs but now I am reading about the Autolites 3923's. However the fitament that you all are referring to is a 5.9L. Does anyone know what is the appropriate plug for the 4.7? My favorite website Rock Auto has the Champion plugs going for $6.60 and they also have Champion Truck Plugs for $2.27 but I suspect that those plugs are not Iridiums since they are that cheap.

 

4.7s should get stockers or NGKs at the same rating or one rating cooler. NOT 3923s.

IndyDurango