Chrysler 300/300C

Replies to this message:
• nvbanker (Jul 21, 2008 3:41 pm)
• coolrunning (Jul 22, 2008 10:37 am)

Replying to: silverflash (Jul 21, 2008 1:36 pm)

Replying to: silverflash (Jul 21, 2008 1:36 pm)

I barely got 20,000 miles from the Conti tires on my two 2006 300C Heritage Editions. I upgraded to Michelins and love them. They are the run flat design with extra firm sidewalls which improved cornering considerably. I also opted for the widest size tire that would fit my stock 18" chrome clad wheels (P255R55-18) and the wet and dry performance improved even more. I expect to get at least twice the mileage from these tires as opposed to the Continentals. The Michelins were about $250.00 each (mounted/balanced) so it cost me a bit over $2000.00 to replace the rubber on both cars. Still, the durability, reliability, handling, safety and even the road noise improvement makes it well worth the expense. The Mercedes in Chrysler clothing is much more apparent now!

Replies to this message:
• coolrunning (Sep 05, 2008 5:11 pm)
  • silverflash (Sep 05, 2008 6:28 pm)
    • coolrunning (Sep 06, 2008 3:05 pm) and 3 more...

Replies to this message:
• coolrunning (Sep 05, 2008 5:20 pm)

Replying to: silverflash (Sep 04, 2008 5:52 pm)

Just unbuckle the two latches and lift the cover up and roll it over to access the filter element. There are three slots on the back that accept three plastic square alignment tabs before you snap the cover back in place. There is no need to remove the air duct (looks like a hose).

Replies to this message:
• silverflash (Sep 05, 2008 6:28 pm)
  • coolrunning (Sep 06, 2008 3:05 pm)
    • nvbanker (Sep 09, 2008 9:23 am) and 2 more...

Replying to: warrior_pr (Sep 04, 2008 10:38 pm)

Replying to: coolrunning (Sep 05, 2008 5:11 pm)

Replies to this message:
• coolrunning (Sep 06, 2008 3:05 pm)
  • nvbanker (Sep 09, 2008 9:23 am)
    • tedebear (Sep 09, 2008 1:49 pm)
    • 63oldschool (Jun 14, 2009 7:34 pm)

Replying to: silverflash (Sep 05, 2008 6:28 pm)

You are welcome. There is one other thing I failed to mention concerning the air filter on the 300C as well as a lot of other late model cars with high performance engines. I have been using K & N high-flow, permanent, washable air filters on all my cars for a number of years. About every three months, rather than change the filter, I clean it in my kitchen sink with a special detergent and re-oil the filter element when it is dry and put it back in the intake plenum. The idea of a high-volume, low restriction air filter is better performance, mileage and economy because you don't have to buy another air filter for about 100,000 miles. Well, that is what i got out of them with my older carbureted engines. However, on all my fuel injected engines with the modern electronic controls on everything, I am not seeing the same results. My mileage has not changed, and the performance is about the same as well. I questioned others about the reason why, and the best explanation was as follows: Most modern engines have a "mass air flow sensor" in the intake manifold that precisely measures the CFM of combustion air that is drawn into the combustion chambers and adjusts the amount of fuel released by the injectors to maintain the exact ratio of air to fuel mixture consumed by the engine. It doesn't matter if your air filter is covered in dirt and restricting 50% of the air or if it completely removed and the maximum amount of air is allowed into the engine. The computer will always keep the same fuel to air ratio, so it will cut back fuel to match an excess of air. The horsepower will vary with the amount of fuel allowed to feed the engine cylinders as in any car, but the mass air flow sensor will limit any benefit of high volume intake air automatically. The carbureted engines will take as much air and fuel as you can cram into them, even if your use a blower to do it. But, modern engines are built with high performance, reliability and fuel economy in mind. Switching to a re-useable, oiled, low restriction filter doesn't really gain anything. In fact, on some vehicles, they are expressly forbidden because they allow larger particles to pass through the filter and can void your warranty. I am going to remove my K & N filters and go back to paper element disposable filters. they don't cost much and are available everywhere. I thought you might find this information useful, in case you were considering changing over to a permanent filter.

Replies to this message:
• nvbanker (Sep 09, 2008 9:23 am)
  • tedebear (Sep 09, 2008 1:49 pm)
  • 63oldschool (Jun 14, 2009 7:34 pm)