I'm reeeeaaaally getting tired of Mobil's monkeying with their product line. The Delvac-1 formula changed... it is now "Delvac-1 ESP", with a CJ-4 rating. Click here for a photo of the jug and some more info. And, the Mobil-1 5W-40 "Turbo Diesel Truck" oil has also changed, it's got a spiffy new label on the bottle, and is also CJ-4 rated. Click here to see Mobil's website info, or click here for the data sheet.

However, I called Mobil and asked if the two were the same. Answer: No. They are NOT the same formula. The tech was unhelpful and didn't elaborate. And at first he didn't even know the M-1 TDT was reformulated, I had to convince him that I was looking at a new bottle with new ratings! D'oh!

Anyway, up until recently, the M-1 TDT oil was identical to the (original) Delvac-1 oil... same formula, same oil, different bottle. But it looks like that is no longer the case. If you are wondering what "ESP" stands for, it's "Emissions System Protection", where they have removed (or reduced) certain additives from the oil. Click here for more details. FWIW, I don't plan to use any ESP oils in my older (80's and 90's) engines. Now it looks like I'll be hunting for the "old" stuff before it vanishes entirely... *sigh*

__________________
Check out my website photos, documents, and movies!

Well I dread the day Amsoil or Redline starts monkeying with their products!
I can afford their 15W40 full synthetic on the 603 engines because I push it to 5000 miles between changes. I once did 7500 miles and although the analysis came back ok, that mileage occurs over 16 months in one car and longer in another so I figure its been in the crankcase too long so I change it out anyhow.

FWIW Chevron changed DELO 400 in the past 6 months but I still buy it for the 617's. To my nose it smells like it has less additives in it, maybe are the oil co's are trying to give more for less.
I wish I had bought several cases of oil a few years ago before all the price increases.

__________________
'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!

I'm pretty sure the last time I was down at my Amsoil guy he told me the 5w40 was CJ-4 rated. He said he would not use it in my '98 CTD, but to stick with the 15W40 that is not CJ-4 rated.

I just bought 2 gallons of the old 5W40 TDT oil at Joe's. Joe's is a small chain of 30 stores in Idaho, Oregon and Washington. It was $21.99 a gallon. I think that is about what Walmart charges and I didn't have to go to Walmart.

__________________
1987 300TD 309, xxx 2.8.2014 10,000 mile OCI


Be careful of the toes you step on today, as they may be connected to the ass you have to kiss tomorrow. anonymous

“Be who you are and say what you feel, because those who mind don’t matter, and those who matter won’t mind.” Dr. Seuss

Say, do you have an URL for Joe's? All I could find is Joe's Sports... didn't look like they'd carry motor oil, though. Any idea if there is a Boise location?

Meridian and Nampa. http://www.joessports.com/home/index.jsp?clickid=hdr_logo_img

Check your email.

__________________
1987 300TD 309, xxx 2.8.2014 10,000 mile OCI


Be careful of the toes you step on today, as they may be connected to the ass you have to kiss tomorrow. anonymous

“Be who you are and say what you feel, because those who mind don’t matter, and those who matter won’t mind.” Dr. Seuss

That's the one, it used to be G.I. Joes. I think mine sells AMSoil too.

__________________
1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine

Yep, they dropped the G.I. last year. Something about them not selling military stuff for years.

__________________
1987 300TD 309, xxx 2.8.2014 10,000 mile OCI


Be careful of the toes you step on today, as they may be connected to the ass you have to kiss tomorrow. anonymous

“Be who you are and say what you feel, because those who mind don’t matter, and those who matter won’t mind.” Dr. Seuss

My local dealer was selling the 5W40 ESP mobil 1 over a year ago. It is designed to be used with the bluetec systems.

I would not worry about using the new CJ-4 rated TDT oil in any diesel engine. It should perform at least as well as the older formula if not better. I also used to be skeptical about the recent shift away from ZDDP anti-wear chemistry, but the new oils are holding up well in the TDI PD engines and those engines are probably as self-destructive as they get. Yes, some additives are reduced, but there's a new generation of cleaner additives that take their place. By all means do a UOA if you're concerned, but I'd at least give the new formulation a try. I know I will if the CI-4+ formula isn't available the next time I do an oil change.

__________________
2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL

One of the things that forced reformulation of diesel oils is the ULSD. Oil had high TBN to deal with the sulfur in fuel before, but without the sulfur the additives were causing problems in diesel engines.

Other changes involve anything that can damage a catalytic converter, something that most oil companies didn't worry much about with diesel oils.

I do like the old Delvac 1, hope that the changes are updates and not ways to cheapen the oil, I'll be watching and reading.

__________________

Gone to the dark side

- Jeff

I'll stick to Mobil, I like REAL synthetic oils

__________________
1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine

Are we going to have to reformulate the damn oil before we fill the crankcase?

__________________
'84 300SD sold
124.128

Rotella synthetic 5W40 is $16.88 a gallon at Wally Mart...

http://www.imakenews.com/rotella/e_article000373489.cfm?x=b11,0,w

__________________
Sharing my partner's 2012 Forte 5dr SX til I find my next 123 or 126..
-
Do I miss being a service advisor ???

Rotella Syn is not a true synthetic... go back and read post #14 for details.

__________________
Check out my website photos, documents, and movies!

Then Shell is lieing on their site...

http://www.shell.com/home/Framework?siteId=rotella-en&FC2=/rotella-en/html/iwgen/products/zzz_lhn.html&FC3=/rotella-en/html/iwgen/products/product_rotellasynth.html


ROTELLA® T Synthetic

Fully synthetic heavy-duty engine oil.



Product Description



Shell Rotella® T Synthetic SAE 5W-40 is a fully synthetic heavy-duty diesel and gasoline engine oil developed especially to meet the requirements of North American driving.



The exclusive Shell formulation offers users exceptional performance and protection in combination with enhanced fuel economy potential over conventional 15W-40 motor oils. This synthetic multigrade engine oil meets the service requirements of virtually all four cycle diesel and many gasoline engine manufacturers.



Applications

Recommended for new and older diesel- and gasoline-powered vehicles, including personal vehicles and commercial vehicles such as on-road, off-the-road, truck rental, pickups, delivery, utility, and school bus fleetsMeets or exceeds the diesel engine requirements of API CI-4 PLUS, Cummins CES 20078, Detroit Diesel, John Deere, Dodge, Ford, GM, International, Mack EO-N Premium Plus 03, Volvo and others; For gasoline engines, it exceeds API SL.
Features/Benefits



Formulated for multipurpose use, simplifying inventory needsOutstanding wear protection and bearing corrosion control helps maximize engine lifeHelps speed cold starts even with low winter temperaturesEnhanced oxidation stability and soot control, especially at higher temperatures, aids service lifeImproved fuel economy – when compared to conventional SAE 15W-40 oilsProduct is warranted against defect and has performance which meets or exceeds virtually all equipment manufacturer’s engine oil warranty requirements.
Approvals and Recommendations

API CI-4 PLUS, CI-4, CH-4, CG-4, CF-4, CFAPI SL, SJ, SHCummins CES 20078, 20076, 20071Detroit Diesel 7SE 270Mack EO-N Premium Plus ’03, EO-N, EO-M PlusVolvo VDS 2

__________________
Sharing my partner's 2012 Forte 5dr SX til I find my next 123 or 126..
-
Do I miss being a service advisor ???