Stupid Question

Does it have plugless igniters with some new spark thing like some companies do now?

I don't know anything about sparkless igniters other then in a diesel engine that have something like a hot start plug.

I changed the plugs in my 300m after 8 years (75k miles). You shouldn't need to change plugs on a relatively new car at this point.

That's wrong.

Chrysler never made a 12 cylinder engine (at least not in a production car).

Most was the 10 cylinder engine (take a small block 360 and add 2 more cylinders). That engine was put into the Viper and some Dodge Ram's I think - and nothing else. I don't think that even the SRT's had 10 cylinder engines.

They must be lazy at that dealer. Gen 3 hemis are dual plug so it should have 16.

Now that you mentioned it I think his is a 2007 300 SRT. This car has great lines and all black with very little chrome makes it more impressive.

The Hemi has 16 plugs. AFAIK, Chrysler has never made a twin-plug six. So your friend either needs a new mechanic or needs to clean the wax out of his ears ('cause he misheard, or didn't get some details about a bad ignition system frying 3/4 of the plugs, or something).

Sounds like an over-zealous service writer that didn't see the rear dual exhaust pipes. OR he could only see the front three cylinders on each side, but knew it was a dual-plug setup. Hence, 12 spark plugs.

If they are using platinum spark plugs, no real need to change them until about 100K or so.

Sounds like a flakey deal!

C-BODY