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  #16  
Old 01-14-2003, 11:47 AM
dutchman830
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We have to watch that we are not hoodwinked. There are actually two different cetane ratings. The CETANE INDEX is a calculated number using the gravity of the fuel and the 50% distillation point of the fuel. The CETANE NUMBER is derived from actually running the fuel through a cetane engine, like an octane number is derived by running the fuel through an octane engine. I'm with you in that the CETANE NUMBER should be posted on the pump. I have heard that some Ford diesel engines were having troubles because of a low cetane number. I have also heard that some stations are advertising some name attached to diesel to indicate that the cetane rating is higher, but how much higher. To my knowledge there are no standards. Here in Texas I have only seen just plain diesel fuel which has a minimum CETANE INDEX of 46.

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  #17  
Old 01-14-2003, 12:13 PM
PeterG
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I am with you guys, the cetane ratings should be posted . I was buying petrol from a Mom and Pop place here in town. I took some of the advice from the forum and started buying it at truck stop. What a difference in performance. I have never seen the cetane ratings published, but I don't think the truck stops want to get a bad reputation so they keep good fuel.

PeterG



79 300SD
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  #18  
Old 01-14-2003, 12:47 PM
Jim B+
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Post cetane ratings at diesel pumps...already required in neighboring Maryland

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  #19  
Old 01-14-2003, 01:38 PM
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virginia

virginia seems to attempt to enforce the posting of cetane numbers. it is actually, (and i forgot to mention earlier) a FEDERAL LAW to post cetane numbers.. what the man told me though on the phone was that no one enforces that law. it's a shame. and how hard can it be to stick that sticker on the pump- they have to update their agricultural stickers on the pump annually anyhow.
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  #20  
Old 01-14-2003, 03:16 PM
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Show me the Cetane Number!

Tim Dawson
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  #21  
Old 01-15-2003, 10:21 AM
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Cetane numbers, please!

R. Michael Froedge
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  #22  
Old 01-15-2003, 04:17 PM
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Frank J Falcone III
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  #23  
Old 01-15-2003, 04:57 PM
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Cetane is very important...just made a 2300 miles
round trip out of Missouri and across Arkansas and
Texas. Bought diesel at several stations on the trip
out, however on the return trip I stopped at the "Love
Stations" only and my mileage jumped from 26.5 to 29.44
with the diesel from Love's stations. This was with
the same speeds, (70/75 and some 80) however I had more head wind coming back from So. Texas. This was in the
Mercedes 300D Turbo with 262,000 miles and used no oil.

Bill
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  #24  
Old 02-05-2003, 01:00 AM
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ERIC - YES! I NEED TO KNOW WHAT THE RATING IS!!!!!!!!!!!!
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  #25  
Old 02-05-2003, 07:08 AM
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May I suggest: http://www.epa.gov/otaq/regs/fuels/diesel/diesel.htm (you'll see that the standards will take a dramatic change in 2004-2006).

Bottom line is that plain #2 is pipeline fuel that meets the federal regulations. To us it means that #2 is supposed to be the same throughout the nation. Variations are regional. I.e. one refinery might make it at one end of the regulation's spectrum. After that it's up to the distribution system for quality, meaning cleanliness of the tanker truck and the individual station. Cetane number, cloud point, and cold filter plug point are the end result of the fuel's individual qualities (moisture, sulfur, particulates, etc.).

If its labeled anything but plain #2 then it's pipeline fuel with an additive. Either the individual station puts it in or the station or chain contracts with the tanker truck company to put it in.

The national standard for cetane is 40, and it does relate to the ignitability of the fuel. To me, posting cetane number on plain #2 is a gimmick because plain #2 is pipeline fuel and the only things we can control is the choosing of our station and whether to trust them with the additives or trust ourselves with the additives.
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  #26  
Old 02-05-2003, 07:44 AM
scott 98
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Scott Houser
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  #27  
Old 02-05-2003, 09:01 AM
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Post them

I have tried fuel from the local marina where I buy fuel for the boat and tractor (no road tax) and there is a difference in fuels.
Brian Shepard
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  #28  
Old 02-05-2003, 09:21 AM
scott 98
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Aren't there steep penalties if you get caught using the non-taxed fuel in your car? I've also heard of people using heating oil in their cars to avoid the tax. I think companies just add a dye to the heating oil to make it look different (the dye might be required by state/federal law for end use identification purposes - just my guess though).
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  #29  
Old 02-05-2003, 09:58 AM
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Smile Dyed fuel

There is a fine and the dye is very obvious so I only used it out of curiosity and there did seem to be a difference.
The marina owner was always bragging about the "quality fuel" that he sold, maybe he was right.
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  #30  
Old 02-05-2003, 10:28 AM
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