here it is.....little dirty but oh well


http://www.dieselplace.com/forum/uploads/cobra13/2004-11-19_080600_MVC-dodgedrivers011F.JPG


http://www.dieselplace.com/forum/uploads/cobra13/2004-11-19_080449_MVC-dodgepass010F.JPG

Nice!



looks like mine http://www.dieselplace.com/forum/smileys/smiley2.gif



Love the big tires. Looks like you have a leveling kit.

Nice!



looks like mine http://www.dieselplace.com/forum/smileys/smiley2.gif



Love the big tires. Looks like you have a leveling kit.Hi guys,

I see that you are running the larger than stock tires. How much do they affect your fuel milage. I was at a service station yesterday fueling my CC, longbed Duramax, and a new Dodge/Cumming, CC, shortbed with large tires drove up to the tank.
I asked him how much did they affect his milage. He told me that with diesels the tire size didn't affect them at all. I only smiled because, he had not reconized that I was driving a diesel. I asked him what kind of milage was he getting, he said that he got 22 on the freeway hand caculated. I told him the best ever that I got was 21 and most of the time it was more like 20 on the freeway. I am still using the stock 245 road tread tires. My engine is stock except dual exhaust, no other mods. Also, I told him my truck weighed 7350 lbs, he told me his truck was 1000 lbs heaver than mine. I just smile and said that I was just intrested if the larger tire affected his milage and that I do haul wood in my truck and was to old to be lifting wood in a truck as tall as his. I wished him well and thought that I would stop by here where I am sure to get an honest answer to my questions.

Thanks,

hey Melvin,

mine are 315/70/17 BFG all terrains....I have had them on there about 5000 miles...my milage has had no signifigant change.....I usually get about 18 unloaded and about 13.5 loaded with my 12,000 pound trailer.

hey Melvin,

mine are 315/70/17 BFG all terrains....I have had them on there about 5000 miles...my milage has had no signifigant change.....I usually get about 18 unloaded and about 13.5 loaded with my 12,000 pound trailer.Hi,
Your milage sounds about the same as mine although, I have the factrory stock 245 tires.
I am sure my reasons for not going to a larger, (better looking tire) is because I can't load my truck if it was any taller.
Sorry about that. I am sixty-three, going going on sixty-four in Feburay.
I have nothing against any A'mericaian produced vehicle. My Chevy does well for me as the Dodges do for my father and you guys.

Thanks for the feed back

i went from stock tires, to 35x12.5s to 36x14.5s, back to 35s and didnt notice a difference but i get bad milliege anyways cause i got a comp box and a heavy foot, but driving normaly i dont notice a difference about 350 miles to a 30gl tank

btw nice truck lol

thanks 5.9

Nice:)

definitively a nice truck! I like your tires&wheels:ro)

thanks guys

I would have a hard time driving a truck that dirty!

ha ha cumminz you should see it when it is real dirty....I spent 18.00 at the car wash this weekend. And got it about 80% clean.

CHRIS

Melvin, when you increase your tire size, you RPMS will drop on the highway. There fore on the highway, you are running lower RPM's with bigger tires than you are running with smaller tires. For example, Dodge puts on 265/70/17 tires (close to 32") on the vehicle off the factory line. Going 70 mph put me right at 2100 RPMS. With my 315/70/17 (34.4") I can now go 73 at 2000. I can go 70 at 1850-1900 RPMS, close to a 150 RPM drop. Less RPM mean a bit better fuel economy.

Now, where going bigger hurts you is off the line torque. The bigger tires effectively lower your gear ratios (ex from a 3.73 to about a 3.58) robbing some of your torque. The smaller tires you put on, the better torque you can put to the ground. However, smaller tires mean higher RPM's on the highway, thus robbing some fuel economy.

I have a 2004.5 2500 4x4 CC with CTD 325/600 engine with 6sp manual tranny. My truck weighs approx 7300 lbs. I get an honest 18.5 MPG (mixed city/highway) per tank. On strait highway I get an honest 21-22 MPG. I don't used the trucks overhead readout either. I use a calculator to figure (keep one in my console). I fill up to the neck at every fillup so that I can guarantee how much gas needs to get put in. Also, I have had me dealer re-calibrate my speedo/odemetor so that I know my miles traveled is accurate. It just drives my father in law and brother in law crazy because they both have Ford 7.3L and average 14-15 MPG