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08-04-2013, 03:21 PM
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#1
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Senior Member
Join Date: Apr 2012
Location: Minneapolis, MN
Posts: 1,268
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What is "premium" diesel?
Not sure if this is the right forum for this question ... but since most diesel users are Class A, I am dropping this here....
Recently I was at a local truck stop where they sell "premium" diesel. when I asked at the desk what "premium" diesel is, I got the response that it was diesel with all the additives already added to it. When I asked for more detail, I was told that it had DEF and the like already added to it. (Yes I TRIED to explain that DEF did NOT go directly into the fuel, but this person was convinced it did  ). I decided not to get in to a fruitless discussion/argument, and so let it go and walked away. My question though still remains: just what is meant by "premium" diesel, and is it worth buying if available??
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- 2017 Newmar London Aire -
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08-04-2013, 03:25 PM
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#2
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Senior Member
Nor'easters Club
Join Date: Apr 2003
Location: Mid-Hudson Valley NY, USA
Posts: 1,331
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In my experience, so-called "premium diesel" is just a marketing label that came into use around 10 or so years ago. I am in the business and know of no significant difference between diesel and premium diesel at least as it's sold here in New York Stste.
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[SIGPIC][/SIGPIC] Ron & Kathy
2020 Newmar London Aire 4569
2019 Ford F150 Limited 450hp
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08-04-2013, 03:35 PM
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#3
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Senior Member
Join Date: May 2013
Posts: 1,685
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Methinks premium is the price, not the product.
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08-04-2013, 03:41 PM
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#4
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Senior Member
Thor Owners Club Freightliner Owners Club Carolina Campers
Join Date: Feb 2011
Location: Jacksonville, NC
Posts: 1,322
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Quote:
Originally Posted by Moonrover
Methinks premium is the price, not the product.
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AGREE !!!
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Tom  MGYSGT USMC (Ret)
2016 THOR Tuscany XTE 36MQ
2011 Jeep Wrangler Unlimited
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08-04-2013, 04:00 PM
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#5
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Senior Member
Join Date: Apr 2012
Location: Minneapolis, MN
Posts: 1,268
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LOL.
I guess there is a reason why marketing people are so well paid...
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- 2017 Newmar London Aire -
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08-04-2013, 04:13 PM
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#6
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Senior Member
Join Date: Jun 2011
Posts: 359
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Since there is 'summer blend' and 'winter blend', maybe premium is the off-season stuff, it's all about marketing.
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2007 K-Z 35 Toyhauler, 2006 Chev 2500HD Duramax, 2005 H-D Road King Classic, 2007 Mini-Schnauzer "Scooter"
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08-04-2013, 04:17 PM
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#7
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Senior Member
Monaco Owners Club
Join Date: Mar 2012
Location: Angola State Prison - Murder
Posts: 4,230
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I'm not a diesel guy by any stretch, but the only different diesel fuel I ever heard of was #2 and #1 diesel. #1 being for super cold climates where it doesn't 'gel' and #2 for warmer climates or summertime use.
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John & Clare Lyon
2007 43.5' Monaco Dynasty Palace III (All Electric)
Towd: 2011 Chevy Equinox
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08-04-2013, 04:23 PM
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#8
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Administrator in Memoriam
Newmar Owners Club Retired Fire Service RVer's Spartan Chassis
Join Date: May 2000
Location: Newark, DE
Posts: 25,898
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From Wikipedia;
Quote:
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In North America, most states adopt ASTM D975 as their diesel fuel standard and the minimum cetane number is set at 40, with typical values in the 42-45 range. Premium diesels may or may not have higher cetane, depending on the supplier. Premium diesel often use additives to improve CN and lubricity, detergents to clean the fuel injectors and minimize carbon deposits, water dispersants, and other additives depending on geographical and seasonal needs.[citation needed]. California diesel fuel has a minimum cetane of 53. http://www.arb.ca.gov/enf/fuels/dieselspecs.pdf
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Adios, Dirk - '84 Real Lite Truck Camper, '86 Wilderness Cimarron TT, previously 4 years as a fulltimer in a '07 DSDP
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08-04-2013, 04:43 PM
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#9
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Senior Member
Thor Owners Club Freightliner Owners Club
Join Date: Apr 2011
Location: Port Charlotte, FL
Posts: 728
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Recently saw a sign on a pump at a Pilot Truck stop near Miami, FL. This fuel may contain BIO-Fuel? I didn't know that any company was blending the two together. Don't know if this a coming trend or not. Needless to say I didn't top off my diesel tank. safe travels... ed
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08-04-2013, 06:10 PM
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#10
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Senior Member
Join Date: Apr 2012
Location: Minneapolis, MN
Posts: 1,268
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Quote:
Originally Posted by EDALLSAILS
Recently saw a sign on a pump at a Pilot Truck stop near Miami, FL. This fuel may contain BIO-Fuel? I didn't know that any company was blending the two together. Don't know if this a coming trend or not. Needless to say I didn't top off my diesel tank. safe travels... ed
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On my recent return through Wisconsin I bought fuel at a Pilot, which also had the indication of some percentage (20% ?) being bio-fuel. I know the early bio-diesels (~10 years ago) had some problems, but those were quickly corrected. In either case I was caught between a low tank and too many miles to go before the next diesel opportunity. Bought 50 gal: no problems after that, and same mileage as the rest of the legs on that trip. Pilot is in too many locations to sell fuel that would give them a bad name ... my guess is that as a type of fuel it is probably ok: not "premium" ( I think the other posters are probably right on in identifying what that is... or is not...), but probably ok to use, with the usual caveats about buying from a high turnover station......
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- 2017 Newmar London Aire -
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08-04-2013, 06:36 PM
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#11
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Senior Member
Fleetwood Owners Club
Join Date: Jul 2003
Location: NY
Posts: 604
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Most likely a nickle a gallon more would make it 'premium'
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08 Diesel Bounder 38V
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08-04-2013, 10:19 PM
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#12
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Senior Member
Join Date: Aug 2011
Posts: 1,126
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I have tried the "reg" and premium" diesel in my Duramax....the "reg" had less of a cetane rating....and dropped mpg by 2mpg....last I ever used of that and last time I used the station(nationwide truck stop chain) that sells the 2 different types
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96 Dynasty 36' that does NOT wander, thanks to RuppParts.com and their superior "poly" suspension bushings
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08-04-2013, 11:57 PM
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#13
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Senior Member
Carolina Campers
Join Date: Feb 2013
Location: Winston Salem, NC
Posts: 3,452
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Hey, regardless, diesel is always at a premium price compared to gas... Like a .40 per gallon premium....
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08-05-2013, 04:02 AM
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#14
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Senior Member
Monaco Owners Club
Join Date: Apr 2009
Location: Billings, MT
Posts: 102
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At ConocoPhillips here in Billings MT, the premium diesel label also states -15 pour point. When asked, retailer stated that the current diesel was not -15 and therefore was not the premium diesel.
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J & J Sabatinos + Schnauzer & Bengal
08 Monaco Dynasty Yorkshire
Eastern Montana
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