Ah, seemed to me you were talking about how efficient of a conductor it was, didn't realize you were referring to mileage.

 

Topped off my tank when getting joe this morning. Mileage seems the same. I always wind up getting somewhere in the 17.x mpg with my around town driving and commute. Nothing has changed with the new plugs.

I also noticed that 05 dakota autolites have a different part # then the 06 dakota autolites, for the same engine. Maybe some kind of revision? Dont know. The 06 dakota uses # 5224 for all types.

Final verdict: The #5224 autolite double platinums @ .035 run the same as fresh copper plugs in my truck.

Good luck all, thanks for all the info.

 

Yeah. I cant imagine stalling being possible from this plug. Its a copper core plug with platinum tips on it to slow wear. Its not some huge thing. Alot of things get blown up on the internet. Someone felt a slight difference and it gets passed on and blown up.

 

Bump.

This misinformation needs to be purged from Dodge Forum. It doesnt speak wonders for this forum.

 

so how have the double plats worked for you? It's been over a month.

 

They work fine. I have the v6 3.7L though, not the 4.7L V8. They have run perfectly, the truck idles fine still, the truck runs smooth. I still get the same gas mileage as I did originally, with the factory plugs. Everything just seems normal.

It sounds like the copper 3923s are the overall best performing plug though.

For me I just wanted to get a plug that I wouldnt have to change as often. So I went with the DLB PLT 5224 from autolite. If they had decreased performance, I would have removed them asap, but they work the same.

 

I just switched from the 5224 to the 3923 in my '06. The 3923s are much better.