[Guest]

Ok Guy's, I am getting ready to do a few things to my Durango to increase gas mileage........Spark plugs,Oil Change synthetic, And K&n air filter, My question what kind of spark plugs for the 4.7 and what brand oil?????? Thanks all :wave:

 

[Guest]

For plugs I recommend going with the NGK V-Power ZFR6F-11G (6987) which are the normal heat range plugs for our trucks or go with one heat range cooler in the NGK V-Power ZFR5F-11 (2262). For oil I only run Valvoline conventional in mine.

 

[GOON'S D]

Amsoil or Mobil 1 oil. Autolites are good pugs too!

 

[Guest]

My Autolites didn't last past 7 thousand miles. They crapped out on me. Went with the NGK's and haven't had a problem since. I've got 35,000 miles so far and they still look good.