Hello all!

I just got myself an 07 Dodge Ram Quad Cab, Big Horn, 5.7L Hemi a few weeks ago. Needless to say I love it! I am a bit curious about my gas mileage though. I am getting 9.3 in town and 13.2 highway under normal speed and empty.Though I did not buy this truck for its gas mileage, I would think it could do better, especially with the MDS. Does this sound correct? also any tips in general? Thanks

 

<p>you're a bit on the low side, but i've gotten as bad as 9 in town. you just got it, so you're probably leaning into it pretty hard.

and welcome to DF</p>

 

Thats on the low low side. I get 12 to 13 city and 15 to 16 hwy. Welcome to the forum

 

Thanks all! I am trying to figure out where to start....I guess simple cheap stuff till I get to know my truck better! Let you know when I come up with a plan!

 

i would recommend that you start saving for the 16 sparks you have to buy for a tune up

 

Yeah, thats pretty low. It seems like a tune up is on order along with a TB clean.

 

Changed plugs and this is what all the old plugs looked liked...notice burnt mark on porcelain...any ideas what would cause this or better question is this normal?[IMG]file:///C:/DOCUME%7E1/Daddy/LOCALS%7E1/Temp/moz-screenshot-6.png[/IMG]Attachment 7803

click pic!

 

To me it looks as though the previous owner ran a low grade fuel, probably 85 octane. These trucks require an 87 octane so that the plugs wont end up looking like that. It is pre detonation in my opinion. I can just imagine what those cylinder walls look like if the plugs are showing scorch marks like that. This is the big controversy with which grades people are using. I would change over to 87 octane and run some upper cylinder lubricant in there and all should be fine

 

if you haven't already, reset your over head drive it for a week then look at your numbers

 

THE 07 HEMIS are to use 89 oct. gas mileage will increase abot 1-1.5 mpg