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Old 08-02-2006, 02:32 PM   #1
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I am interested in buying a new Journey. Can anyone tell me anything about the new Caterpillar engines and if they require using the low sulpher diesel fuel that I have been hearing about?
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Old 08-02-2006, 02:32 PM   #2
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I am interested in buying a new Journey. Can anyone tell me anything about the new Caterpillar engines and if they require using the low sulpher diesel fuel that I have been hearing about?
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Old 08-02-2006, 03:34 PM   #3
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this has been talked about before, if i remember the new diesels won't be sold untill the fuel is available.
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Old 08-02-2006, 03:45 PM   #4
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Sammie:

Welcome to the forum . Great folks here with lots of helpful information. Hope you get the rig of your dreams and share your RV adventures with us.

The Journey is certainly a good value in a DP. As the others have said, many new rigs will still have the 2006 engines until the new low sulfur fuel is more widely available.
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Old 08-03-2006, 07:27 AM   #5
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Same question (and answer) posted on the Freightliner Board.

Interesting that I found this post -
I happen to get fuel (gas) at a Chevron station yesterday. Noticed a sticker on the diesel pump that said "Low Sulfur - 500 ppm Sulfur Maximum." Then stated "Federal Law prohibits use in 2007 and later model vehicles." Found this interesting as I thought the Low Sulfur was for newer vehicles and not older (pre-2007) vehicles.
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Old 08-03-2006, 08:52 AM   #6
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It is Low Sulfer Diesel that is now being sold. It will be Ultra Low Sulfer Diesel for 2007 and beyond.
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Old 08-03-2006, 11:06 AM   #7
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That's correct! Today's engines are low sulphur. The newer 2007 spec engines will be Ultra Low Suplhur Diesel (ULSD).

The regs require any engine built after 1/1/07 to meet the new emmision specs. Because chassis builders and coach builders both buy an inventory in advance it's expected that these new ULSD engines won't really hit the dealer's lot until May 2007, give or take a month. Every engine will be required to meet the new specs so that means that everyone will be building ULSD engines.
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Old 08-03-2006, 02:27 PM   #8
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The Ultra Low Sulfer Diesel will only be 15 ppm compared to the existing 500 ppm. My understanding is that all the engines will be able to run on the Ultra Low Sulfer Diesel Fuel.
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Old 08-04-2006, 12:00 PM   #9
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by dengraham:
The Ultra Low Sulfer Diesel will only be 15 ppm compared to the existing 500 ppm. My understanding is that all the engines will be able to run on the Ultra Low Sulfer Diesel Fuel. </div></BLOCKQUOTE>Correct. But from what I've read ULSD has somewhat of a solvent quality to it just like biodiesel. If you were to switch to mostly ULSD on the next tank-full then depending on the hours on your engine and other factors you could end up clogging your filters and injectors. When the time comes (i.e. once ULSD is available most everywhere) what I'm going to do is to switch over gradually.

Start filling no more than 20% of your tank with ULSD and the rest LSD. Run your tank down to at least 3/4 empty and then do 30% ULSD mix. Keep incrementing ULSD by 10% per tank until you get to 70% ULSD. Next tank you can go all ULSD and then stick with it from there on with it pretty much from there on. A tank-full of LSD once in a while won't hurt but once converted you should try avoid it just to be safe.

I know, what a pain in the *** but better safe than sorry.
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