When you guys figure out exactly what it is, let me know also.I have tried 93 Octane with the same result....valve clatter at high rpms. Not sure if it matters, but mine is of the 5.9L breed with currently only a K&N cold air FIPK, and a Superchip tuner applied (set to 87 octane level...damn gas prices..) Recently minor tune up..( cap, rotor, wires and plugs)...correct me if im wrong, but you cant change the timing on these Ds right?
My 2000 5.2 L does it with cheap gas. mid grade takes care of it. My father-in-laws F150 is the same way. Thats how some motors are. I dont konw if it will hurt anything but I get better miles per gallon, more power, and no valve sounds with mid grade, to me its worth the 10 cents per gallon.
2000 Durango 5.2L SLT+
2001 GMC Jimmy 4.3L 2door
Alpine Iva-310 in-dash dvd
Run higher octane and since I am betting you have the 5.2L or 5.9L motor, switch the plugs out for Autolite 3923s. Yes... Autolite 3923s. Pinging cured.
Whatever you do... DO NOT go to the dealer complaining of pinging. They will 'fix' it alright, by changing the flash (also known as reprogramming) on the PCM (the engines controlling computer.) Let's just say that fix is also known as "the Death Flash" and that should tell you enough about what it will do to the Durango. Pinging will be cured by nutering the power and performance curves of the computer/engine. Not undoable.
- Truck of the Month: 12/2006 & 06/2012 DodgeForum.com;
01/2006 DurangoClub.com; 07/2007 Dakota-Durango.com
- Durangoer of the Year: 2006 DurangoClub.com