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    Forums    Tech Talk    Is "Diesel" fuel all the same?
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Is "Diesel" fuel all the same?
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Supporting Member of Barthmobile.com 1/19
Picture of Pgh. Pirate
posted
Is "Diesel" fuel all the same?

Available at my local suburban food mart is a product called "automobile diesel". My first concern is the product turnover rate - assuming I don't want a stale product.

But what's most important to me is whether it is the same product as what's available at a true, over the road, truck stop.

Secondly, while over the road, do you all simply purchase the cheapest diesel or a particular brand(s)?

Thanks for your thoughts.


'92 Breakaway
Diesel Pusher, Cummins 190hp,
No Modifications
Allison AT542
Floor Plan 30-BS-11B
9205-3798-30BS11B
 
Posts: 247 | Location: Pittsburgh, PA | Member Since: 11-07-2014Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 6/19
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All on road diesel is basically the same . You have winter and summer blends to prevent freezing . It's all low sulfur diesel.


Harold
Cat
Sam is 10 year old Miniature Schnauzer
Currently without a coach

KE5WCW
 
Posts: 197 | Location: Mooringsport,LA | Member Since: 05-30-2019Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 1/19
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Diesel fuel is produced in #1 and #2 grades. The #1 grade is less viscous (pours better) and is favored in very cold climates. It is more similar to kerosene or jet fuel. #2 grade is the more common road fuel diesel. It closely resembles fuel oil.

#1 diesel has slightly less heat content (Btu/gallon) than #2. Years ago, there were also differences in sulfur content but all road fuel is low sulfur now. Low sulfur fuels have less lubricity than higher sulfur blends. This has caused some concern about increased wear of injector pumps. I am not sure if this is a real problem or not. Some advocate fuel additives to restore lubricity.

Road fuel suppliers blend the two types for winter use. In any case fresh fuel is a good idea. In warm climates, algae and bacteria can grow in the fuel, causing gelling. In cold climates water can be dispersed in the fuel in the form of microscopic ice crystals. This is especially likely in aviation fuels which can see temps well below zero. All aviation jet fuels use deicing cosolvents year round.

Auto diesel pumps have a different nozzle size than truck pumps but fuel is the same.

As long as the fuel is reasonably fresh and free of water it is all about the same.


9708-M0037-37MM-01
"98" Monarch 37
Spartan MM, 6 spd Allison
Cummins 8.3 300 hp
 
Posts: 4116 | Location: Kalkaska, MI | Member Since: 02-04-2011Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 1/19
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Thank you gentlemen. I'll load all the cans into the wife's trunk. She can easily fill them after the gym, on her way home from work. Tooling Along


'92 Breakaway
Diesel Pusher, Cummins 190hp,
No Modifications
Allison AT542
Floor Plan 30-BS-11B
9205-3798-30BS11B
 
Posts: 247 | Location: Pittsburgh, PA | Member Since: 11-07-2014Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 4/08
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We have the same in AZ. Light duty and heavy duty. The difference is tax. Heavy trucks pay $.08 more tax.


'92 Barth Breakaway - 30'
5.9 Cummins (6B) 300+ HP
2000 Allison
Front entrance
 
Posts: 1045 | Location: Minneapolis/Yuma | Member Since: 08-17-2006Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 3/11
Picture of Tom  and Julie
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Our Ford 6.0 diesel manual and service guides recommend Cetane booster be added at every fill up (pre Def) and it has served us well. Ford sells a product named Motorcraft Fuel Conditioner for about $8 that treats 125 gallons. It is not in many auto parts stores but every dealer parts counter has had it. We have avoided all the issues of failures and wear, so far and have just passed 202,000 miles.


1993 32' Regency Wide Body, 4 speed Allison Trans, Front Entry door, Diamond Plate aluminum roof &
1981 Euro 22' w Chevy 350 engine and TH 400 tranny
 
Posts: 1526 | Location: Houston Texas | Member Since: 12-19-2006Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 3/19
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Posts: 2088 | Location: Jackson, Michigan, USA | Member Since: 04-18-2004Reply With QuoteReport This Post
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    Forums    Tech Talk    Is "Diesel" fuel all the same?

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