Re: [MBZ] speaking of ULSD
Peter Frederick wrote: Actually, it turned out that removing lead from gasoline REDUCED valve wear -- lead oxide is an abrasive, and far from collecting and making a wear resistant surface, it was actively grinding on the valves and seat as the valve operated. Fine lead oxide particles made their way into the oil as well, nicely polishing the oil carrying hone marks off the cylinder walls and slowly reducing the size of crankshaft journals and wrist pins. Engines last much longer without the lead than with it. Not the same with sulfur containing compounds in diesel fuel, though -- they provide most of the lubrication qualities. I believer there are now additives in the fuel to restore it's lubricating properties. Peter Sulfur provides NOTHING beneficial for a diesel engine. The residue from the combustion of high (5000 ppm) or low (500 ppm) sulfur fuel is very corrosive to engine surfaces and requires powerful additives and/or frequent oil changes to neutralize. Removing sulfur however (using older refining techniques) also removes other fuel fractions that provide lubrication. If it's not replaced, the resulting fuel after the sulfur is removed has lower lubricity. If the lubricity is restored, the resulting fuel is much superior to the low sulfur (500 ppm) diesel. Marshall -- Marshall Booth Ph.D. Ass't Prof. (ret.) Univ of Pittsburgh School of Medicine [EMAIL PROTECTED]
Re: [MBZ] speaking of ULSD
Yup - or to quote the list administrator - read the archives. On 1/4/07, Chris Kueny [EMAIL PROTECTED] wrote: Thanks. That was rich. Chris I had a flashback when I saw this email. --R -- OK Don, KD5NRO Norman, OK Even if you're on the right track, you'll get run over if you just sit there. Will Rogers '90 300D, '87 300SDL, '81 240D, '78 450SLC, '97 Ply Grand Voyager
Re: [MBZ] speaking of ULSD
Well, actually the sulfur containing compounds are the ones providing much of the lubricating qualities -- the vast majority of most diesel fuel is linear hydrocarbons, not particularly good lubricants. The aromatic fraction contains the sulfur. Sulfur comes out of the refinery in tank trucks containing molten sulfur these days. Need a few? Sulfur also promotes even burning and reduces smoke (particulates) because it changes oxidation states easily. Not required, of course, but it does more than just corrode things. I think the primary reason for removing it, other than reducing sulfuric acid emissions, is that it poisons the catalytic systems for nitric oxides reduction. Peter
Re: [MBZ] speaking of ULSD
Uh, it wasn't that kind of flashback... --R OK Don wrote: Yup - or to quote the list administrator - read the archives. On 1/4/07, Chris Kueny [EMAIL PROTECTED] wrote: Thanks. That was rich. Chris I had a flashback when I saw this email. --R
[MBZ] speaking of ULSD
Last time I filled up last week was the first time I noticed the sticker saying it was the ULSD. Since we seem to be getting it now, should I be adding anything to each tank of diesel? Marshall? -- Kaleb C. Striplin/Claremore, OK (2x) 91 300D 2.5 Turbo, 90 420SEL, 89 560SEL, 87 300SDL, 85 380SE 5.0 Euro, 84 190D 2.2, 81 240D, 76 240D, 76 300D, 72 250C, 69 250 http://www.striplin.net
Re: [MBZ] speaking of ULSD
As I recall he's short, but I don't think Marshall is small enough to get past the filler spout. Tim 1982 300TD 1001 300TE 4Matic -- Date: Thu, 04 Jan 2007 11:57:14 -0600 From: Kaleb C. Striplin [EMAIL PROTECTED] Subject: [MBZ] speaking of ULSD Last time I filled up last week was the first time I noticed the sticker saying it was the ULSD. Since we seem to be getting it now, should I be adding anything to each tank of diesel? Marshall?
Re: [MBZ] speaking of ULSD
Hmm... It would be hard to argue that adding Marshall to any Mercedes could be anything but good... Levi (: On 1/4/07, TimothyPilgrim [EMAIL PROTECTED] wrote: As I recall he's short, but I don't think Marshall is small enough to get past the filler spout. Tim 1982 300TD 1001 300TE 4Matic -- Date: Thu, 04 Jan 2007 11:57:14 -0600 From: Kaleb C. Striplin [EMAIL PROTECTED] Subject: [MBZ] speaking of ULSD Last time I filled up last week was the first time I noticed the sticker saying it was the ULSD. Since we seem to be getting it now, should I be adding anything to each tank of diesel? Marshall? ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] speaking of ULSD
Add one capful of MBoothium with every fill-up and you'll drive forever... On 1/4/07, Levi Smith [EMAIL PROTECTED] wrote: Hmm... It would be hard to argue that adding Marshall to any Mercedes could be anything but good... Levi (: On 1/4/07, TimothyPilgrim [EMAIL PROTECTED] wrote: As I recall he's short, but I don't think Marshall is small enough to get past the filler spout. Tim 1982 300TD 1001 300TE 4Matic -- Date: Thu, 04 Jan 2007 11:57:14 -0600 From: Kaleb C. Striplin [EMAIL PROTECTED] Subject: [MBZ] speaking of ULSD Last time I filled up last week was the first time I noticed the sticker saying it was the ULSD. Since we seem to be getting it now, should I be adding anything to each tank of diesel? Marshall? ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] speaking of ULSD
Kaleb - I've had several tankfuls of the 15ppm fuel since September, and now that's all they have around here. Both the '90 2.5 and the '83 SD seem to run just fine. The low sulfur worries may well be similar to when they took the lead out of gasoline, when there were dire warnings of valve wear, etc. That seems now to be more urban legend than anything else. Time will tell if ULSD follows a similar story line... Werner '83SD; '90D - Original Message - From: Kaleb C. Striplin [EMAIL PROTECTED] To: Mercedes Mailing List mercedes@okiebenz.com Sent: Thursday, January 04, 2007 12:57 PM Subject: [MBZ] speaking of ULSD Last time I filled up last week was the first time I noticed the sticker saying it was the ULSD. Since we seem to be getting it now, should I be adding anything to each tank of diesel? Marshall? -- Kaleb C. Striplin/Claremore, OK (2x) 91 300D 2.5 Turbo, 90 420SEL, 89 560SEL, 87 300SDL, 85 380SE 5.0 Euro, 84 190D 2.2, 81 240D, 76 240D, 76 300D, 72 250C, 69 250 http://www.striplin.net
Re: [MBZ] speaking of ULSD
I had a flashback when I saw this email. --R
Re: [MBZ] speaking of ULSD
They have added everything you need already. Already been covered. Chris Kueny ([EMAIL PROTECTED]) 78 Chevy Custom deluxe '85 300TD '02 Subaru Outback Last time I filled up last week was the first time I noticed the sticker saying it was the ULSD. Since we seem to be getting it now, should I be adding anything to each tank of diesel? Marshall? -- Kaleb C. Striplin/Claremore, OK (2x) 91 300D 2.5 Turbo, 90 420SEL, 89 560SEL, 87 300SDL, 85 380SE 5.0 Euro, 84 190D 2.2, 81 240D, 76 240D, 76 300D, 72 250C, 69 250 http://www.striplin.net ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] speaking of ULSD
If I didn't know any better, I'd think there might be more energy content in the fuel. I'm getting slightly better mileage off the new stuff. K On Thu, Jan 04, 2007 at 04:19:02PM -0500, Chris Kueny wrote: They have added everything you need already. Already been covered. Last time I filled up last week was the first time I noticed the sticker saying it was the ULSD. Since we seem to be getting it now, should I be adding anything to each tank of diesel? Marshall?
Re: [MBZ] speaking of ULSD
Thanks. That was rich. Chris I had a flashback when I saw this email. --R
Re: [MBZ] speaking of ULSD
Kaleb C. Striplin wrote: Last time I filled up last week was the first time I noticed the sticker saying it was the ULSD. Since we seem to be getting it now, should I be adding anything to each tank of diesel? Marshall? You need to add nothing unless you have a problem - like water in the fuel (try an anti-gel) or poor idle (try a shot of Techron or Diesel Purge). Marshall -- Marshall Booth Ph.D. Ass't Prof. (ret.) Univ of Pittsburgh School of Medicine [EMAIL PROTECTED]
Re: [MBZ] speaking of ULSD
Actually, it turned out that removing lead from gasoline REDUCED valve wear -- lead oxide is an abrasive, and far from collecting and making a wear resistant surface, it was actively grinding on the valves and seat as the valve operated. Fine lead oxide particles made their way into the oil as well, nicely polishing the oil carrying hone marks off the cylinder walls and slowly reducing the size of crankshaft journals and wrist pins. Engines last much longer without the lead than with it. Not the same with sulfur containing compounds in diesel fuel, though -- they provide most of the lubrication qualities. I believer there are now additives in the fuel to restore it's lubricating properties. Peter
