Looks like Rotella T6 is a superior oil.

https://youtu.be/T-yt5a1cWd4

Switching back to T6 because of this.

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1998 Ford Escort ZX2 5 speed - 279,000 miles My Daily

1992 Mercedes 300D 2.5 202,000 - Pure junk
2000 Mercedes E320 Black - 136,000 miles - Needs repair

Don't forget to grease the screw and threads on the spring compressor.

PF's testing is fantastic, but in the real world it makes no difference. Your engine will need a rebuild due to excessive blowby long before either of the oils tested makes a difference. Both are lightyears ahead of what was available when the engines were designed.

Buy whatever's cheaper when you need oil, and rock on. In this day and age, "which oil is best?" is an incredibly solved problem, and lucky for us the answer is "pretty much all of them."

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617 swapped Toyota Pickup, 22-24 MPG, 50k miles on swap

You're right, the difference is so minute it's hair splitting. I think Delo is usually cheaper.

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1998 Ford Escort ZX2 5 speed - 279,000 miles My Daily

1992 Mercedes 300D 2.5 202,000 - Pure junk
2000 Mercedes E320 Black - 136,000 miles - Needs repair

Don't forget to grease the screw and threads on the spring compressor.

Ah, another oil thread. Do we need to send in a priest?

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Current stable:
1995 E320 149K (Nancy)
1983 500SL 120K (SLoL)

Black Sheep:
1985 524TD 167K (TotalDumpster™)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Merry Christmas everyone.

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Jim

Flash forward to Dec 2020
Walmart selling a 9 pack of Delo 1 gal jugs for 103.05
and they sell Rotella T6 same 9 pack for 100.95

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'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!

Due to the VW Jetta, I use the Castrol Edge 5w-40 in all my diesels.

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RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K

90 Dodge D250 5.9 Cummins/5 speed. 400K

Project farm is awesome.

Ps. Costco is now selling 15/40 diesel oil.
I’m currently using it and can confirm that it is not in fact filled with pure danger.

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1981 240D 4sp manual. Ivory White.

The o6 jetta tdi wants an oil that meets spec because of potential cam issues they claimed.. A good foreign local mechanic stated the change freuency is too long. He claims his customers that follow his advice do not have the issue.

How bad was the issue? There were no 2007 tdis sold at least in Canada until they Got a new engine for the 2008 TDIs . Obviously even their rated oil did not over come the problem. I too have one.

Our '06 has almost 300k miles on it. No issues yet, but we do change the oil every 5,000 miles. The Stealership also used the Castrol Edge.

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RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K

90 Dodge D250 5.9 Cummins/5 speed. 400K

I know guys with 900 fwdhp using rotella in their honda's

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

I use Liqui Moly MOS2 15W40 ( as a former Rotella user for many years). I get a measured and constant 1 mpg more per tank, smoother low speed acceleration and reduced idle noise in my 300D.

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Why I will never do business with "DieselKraut" again

http://www.peachparts.com/shopforum/mercedes-benz-used-parts-sale-wanted/378935-why-i-will-never-do-business-dieselkraut-again.html

For the 617, whatever 5w40 is on sale when I need oil is what I grab. Think that's been Rotella the last few changes.

Girlfriend's '13 TDI gets Lubri Moly, just because it's the 507.00 spec oil the local Napa carries. Might be 501.00, don't remember. Reminds me, I need to check it.

The Forester and Element get whatever 5w-30 conventional is on sale. Havoline or Chevron(same stuff, different color jug) run a rebate deal every so often and I stock up, brings the cost down to a buck and change per quart.

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617 swapped Toyota Pickup, 22-24 MPG, 50k miles on swap

5W40 is great for winter starting compared to 15W40. It brings my 'don't even worry about it' temp down from 10F to 0F or a bit lower.

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CC: NSA

All things are burning, know this and be released.

82 Benz 240 D, Kuan Yin
12 Ford Escape 4wd

You're four times

It's hard to

more likely to

concentrate on

have an accident

two things

when you're on

at the same time.

a cell phone.

www.kiva.org It's not like there's anything wrong with feeling good, is there?

Total Quartz Energy 9000 5w40 is my go-to oil for old diesels. It has MB 229.5, BMW LL-01, VW 502/505.00 and Porsche A40. Total QE9000 gets a lot of praise on the Bob Oil Guy site forums. It also costs a few dollars less than Rotella T6. It's a rare day when a top rated product is also the least expensive, but here it is. Haven't seen it in stores, I order online, usually add it when I'm already placing an order for parts.

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Current fleet:
1998 E300 turbodiesel
2008 E320 bluetec - leaky oil cooler seals replaced
2012 S350 bluetec
2015 GL350 bluetec

Sold:
1996 Passat TDI
1997 E300 diesel