I was talking to a person who has a 04 2500. He movied from cali to maine and he was getting 19 out there and know is getting 16. The only thing I could think of is elevation, we are at about 500 feet here in maine.

just my 2cents.

Coop

 

With my previous Cummins powered Rams and now my '05 Hemi powered Ram, I lose quite a bit up in the hilly Florida panhandle, Alabama and Mississippi towing and empty just from the terrain. The trucks seem to run the same but going from flat ground to constant hills really kills mileage. If Pheonix is more hilly than where you moved to, that could make a big difference. Isn't Pheonix way up the thin air?

 

Where are you filling up? If it's a BP/Amoco, it may be the 50 cetane Premier diesel fuel that they're selling.

 

Are all BP/Amoco's labeled Premier Diesel the 50 cetane? I've kind of tested out all of the fuel stations around and found which ones to favor, I fill up basically everytime at BP with their premier diesel though. I can't hear the difference in cetane though, which makes me wonder if it is actually 50. However I set my mileage records using that fuel, versus some of the others that didn't yield quite as much.

In the short term it is a possibility the long trip cleaned the carbon out of the motor but a month in I can't imagine this being the case.

 

I've noticed that when I'm out of Cali. My fuel mileage goes up 1-2 miles. Probably because of all the garbage in our fuel here?

 

IF the engine/vehicle combo does not need the cetane (aka octane) ..... doesn't the mpg actually suffer ? ...... I found that when I used a lower cetane fuel when I was on the east coast - I got better fuel econ with a LOWER grade fuel.

This was a couple of years ago.... I think the grade was like 42 or 43 ......vs a 45 or 46 that is the typical prem-diesel now. ????

 

Perhaps a combination of heat (or the lack thereof), humidity, and elevation all playing a role.

Phoenix= hot and dry.
Wisconsin= cool(er) and humid.


phox

 

Happy and BoostdCTD, you are both lucky to be in states that have access to Amoco Premier Diesel. No, not every station carries this premium product, only a select few. If you guys get on the tdiclub forums and search for premier and wisconsin or michigan in the fuels/lubricants section of the forum, someone was nice enough to post a list of verified premier locations in both areas. You can also try here http://www20.brinkster.com/beowulf9/....asp?View=FULL

Amoco Premier is not your average 'premium' diesel, it's the real deal. 50 cetane minimum, higher btu than regular #2, beefy additive package, and it's refined further in the initial stages, just a better product, kept separate from #2 and the pipelines from refinery to pump.. I am lucky enough to have access to Premier's sister product, bp diesel supreme, which is virtually identical. Happy, at least in return for taking much colder weather you get the best diesel in the country!!

 

bp is already selling low sulfur diesel here in the west, don't know about amoco. i do know that amoco was my fuel of choice when i lived in the waukegan area of il.

 

I notice a 1-2 mpg increase when using amoco vs any other here in AZ.

 

There is no Amoco anymore. All BP fuel/gas is Amaco gas since BP bought Amaco a few years ago. I am actually surprised that anyone would still a an Amaco sign as they should have been changed.

 

thats what i though too

 

Tempforce and txwelder - while that's great you guys see an improvement running that fuel, you do NOT have access to the same Amoco Premier that we are talking about here. It's only distributed in a few northern/midwestern states, maybe 4 states. The stuff we are talking about here is Premier/Supreme, both of which are 50 cetane minimum premium fuels.

Tempforce - all diesel sold in this country for on road use is low sulfur diesel. What you are referring to is ULSD, ultra low sulfur diesel, which bp supplies to some arco stations and various stations on the west coast. It has less btu and lubricity than regular fuel but is very clean burning.

Strick/Cumns-pwr - Amoco premier and BP diesel supreme are not the same product. Yes, all amoco gasoline took over bp's, however these two premium diesel fuels both still remain, and are slightly different.