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Also, is the new ulta low sulfur fuel going to make my injectors go bad? If so is there some additive I can put in?
I am a first time Diesel owner and I read the label on the truck and it said to use Low Sulfur Diesel and the fuel pump that is Ultra Low Sulfur Diesel says "Approved for all diesel vehicles". Am I using the right stuff?
Thanks for any help.
I guess it doesn't PAY to be in a hurry or drive in cold weather or both.
Does anyone know if the colder weather has much impact on diesel fuel mileage?
Does anyone know what parameters the computer is measuring...? I suspect that the numbers are representative of the average of the last 100 miles or something.
Any thoughts on the cold weather affecting mileage.
from Riceguy
On the way back the temps were 72 last Sunday and not cold a bit.. again I got nearly the same mileage 18.6 this time but had a stiff wind that I was driving into. Cold weather was not a factor this time it simply has to be the slow uphill trip from Greenville, NC elevation of 50ft or so to Marion where the mtns start which is 1000 ft or so... its 2400 ft where I live.
That 300 mile stretch doesn't appear to be uphill but I guess that's doing it. 65-70 miles per hr. I have 7100 miles on the truck now and have changed the oil once but not the fuel or air filters. We are leaving today for FL pulling the camper at 11500 lbs.
I have the same identical truck as you and mine has been averaging 20 mpg from 55 mph to 60mph about 19mpg at
65 mph and about 17.5 mpg to 18 mpg @ 70 mph.
I also tow a 35 foot 5th wheel that weighs 11,000 lbs and I get 11 mpg to 12 while pulling flat surface at 65 mph.
I checked the mileage the old fashioned way to verrify the computer but the computer was actually pretty close. The only thing I have done to the truck is replaced the stock donaldson air filter with a K& N AND I run Amsoil 15w40 heavy duty synthetic oil
I hope this helps.
Mike
my actual gear ratio has changed a little due to the fact I took the 245 tires off and went to a taller 285.
My truck has 25,000 miles on it and just installed a K&N air filter, I can't see alot of difference in mileage yet but it does not blow black as much under a load pulling my 11,000 lb 5th wheel. After taking into consideration the speedodometer is off 6 mph at 70mph and I actually travel 1 and 2/10th's for every mile showing on the odometer, I get around 15.5 to 16 in town and 19+ if I keep it below 70mph.
I also get about 12 mpg pulling a 11,000lb high profile 5th wheel on flat grade.
Point of consideration, When I installed the K&N air filter my check engine light came on within 10 miles of travel.
K&N recommended I disconnect the negative battery cables from both batterys and leave disconnected for 3 and 1/2 hours. After I did this I reconnected the batterys and the check engine light was still on, but after I shut the truck off and restarted it for the second time the light cleared and has not come back on,
Hope this info helps you.
Mike
Thoughts ?
I now have 18000 miles on my baby and pray that at least the towing mileage increases, if not, should of bought a Ram Cummins like my brother in law who is getting 16-17 towing the same weight as me. Go figure!!!!!!!!!
Thanks
Hope this info helps you out.
I pull a 11,500 lb High profile 5th wheel, Mine is more constant around 12 mpg depending on terrain and wind,
I would like to have a dodge like your brother in law does, we had 2 Dodges a 2004 and 2007, both with turbo cummins, Pulling the same load they got 10 to 12 mpg. They were both good trucks but never got anything close to that pulling.
I wish for higher mileage towing as well, but I think thats about what we are going to get.
Really super deals and he will deliver for a very minimal cost.
He sells Chevys, along with Dodge.
Saved several thousands of $$$$$$ even with delivery to lower Alabama.
Hope this helps
Thank you.
On my friends first trip with just a few thousands on it he got 11 mpg empty.. From Ohio to central FL..
The auto in the Chevy is really nice... I like that 6 speed auto. It slows you down on hills really nice.. You would be impressed.. After having a 1999 250 Ford Diesel I was !!
One thing I noticed is the visiblity from inside the vehicle to the outside. It seems to me that the Ford was better. When you go back to look again see if you can see it. I might be my height vs others but it seemed real to me.
I am not sure about the Ford though since the engine is new again..Their 6L engine they came out with in 03 sure had lots of problems early on..
I started out 17 MPG highway empty, but the biggest improvements noted was switching to Mobile One Turbo Diesel 5w-40 oil, using a good grade of diesel, Exxon, and believe it or not, setting tires at 50 psi made a noticible differnce. I'm now averaging 20.2 @ 42,000 miles. The Mobile One resulted in an immediate 1 MPG increase. K&N filter no improvement.
Cody
Also, anybody know if the exhaust change voids any warranties?
Thanks