Dodge Challenger MDS and Hemi upgrade on 2009 RT?

  • Thread starter Thread starter SupaFlyGuy
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SupaFlyGuy

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Ok, I found out that cold air intakes do not work that well with the MDS system. I'm not sure what the current mpg specs are based on but Dodge shows a 16/23 ratio for city/hwy.

My quetion is, how does the hemi upgrade and MDS tie into all this then. Will I just see 16/23 as on the mpg specs or is that based on their 2008 model before any upgrades??

Thanks in advance
 
MDS stands for "Multi-displacement-system."

This system shuts down 4 of the 8 cylinders when cruising or in city driving. This helps to save fuel. If you add accessories, you can get better fuel economy, like intake hoods, a better muffler, and much more.

The 2009 Dodge Charger R/T is getting an updated engine with 370 HP up from 350 HP and the MDS system will be upgraded to a more modern version for enhanced fuel savings. You might wanna wait for it if you want to buy the Charger R/T.

Things that might lower your fuel are:

Excessive A/C use
Hard and fast driving
Use of 87 octane because the 5.7L V8 HEMI in the Charger R/T requires 89 octane. Don't use 91. Just 89.

Just keep maintaining your Charger R/T and love it. I wish I could have one
 
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