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  #16  
Old 05-17-2012, 11:16 PM
Mechanical Hyphochondriac
 
Join Date: Sep 2009
Location: Ocala, FL
Posts: 539
You should not be running 8k miles on Delo...switching to Mobil 1 Turbo Diesel Truck Oil (Synthetic) will do wonders for your engine and longevity. It will quiet down your lifters and make the engine run much more smoothly. I change mine every 9-10k. Others on the forums have done oil analysis on this oil at 10k and it was okay so 10k is fine.
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1987 300TDT - 195,000 (Original #14 head)
1993 190E 2.3 - 105,000
1981 300D - 250,000
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  #17  
Old 05-18-2012, 03:32 AM
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davidlee
 
Join Date: Mar 2012
Location: Portland OR
Posts: 548
Quote:
Originally Posted by jonbobshinigin View Post
You should not be running 8k miles on Delo...switching to Mobil 1 Turbo Diesel Truck Oil (Synthetic) will do wonders for your engine and longevity. It will quiet down your lifters and make the engine run much more smoothly. I change mine every 9-10k. Others on the forums have done oil analysis on this oil at 10k and it was okay so 10k is fine.
Respectively, My lifters are quiet and my engine already runs smoothly.
Motor oil has came along way, you can do oil analyhsis on Conventional 15W40 HD oil at 8-9 k and it will show good, all you have to worry about is soot contamination, that will happen long before the oil is worn out. so unless you run high EGT's and or dont allow for proper turbo cool down time, Synthetic engine oil is kind of a waste of $$$ in a Diesel from what ive learned.
But to everyone there own. Im just one person last time I counted.

just go to (B*# is the oil guy. com) if you dont believe me.
its like the PP of the oil community.
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Live simply so others can simply live


87 300D Turbo (Daily)
83 300D N/A Euro (Sold recently )
84 230E Euro (Parked) posbl. broken flywheel or worse (for sale soon)
87 190E 2.3 (200K when purchased, 300K now and still drives awesome)
82 GMC Jimmy (K5) 6.2 Diesel
73 Roadrunner 340ci My very first car, still own it
92 Talon AWD turbo w/ upgrades
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  #18  
Old 05-18-2012, 04:35 AM
locry's Avatar
I love this place!!! :)
 
Join Date: Nov 2003
Location: Philippines, ...recently submerged, AGAIN
Posts: 1,011
I used to have an 86-87 Euro 300D... and I distinctly remember having difficulty removing the oil filter cap... yeah, maybe they did equip the 124 with these and were eventually updated.
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85 190E 2.3(SOLD)
86 230E (-->300D)
87 300D (-->300TD)
68 250S w/ a 615 and manual tranny (RIP)
87 300TD (SOLD)
95 S280 "The KRAKEN" (Turbo 2.9 602 transplant)
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  #19  
Old 05-18-2012, 05:06 AM
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Join Date: Jul 2004
Location: Barrington, RI
Posts: 5,271
Just out of curiosity, what soot levels are you seeing at 9k miles? And, is your EGR deleted?

On my 602 (5-cylinder and with EGR still intact), I did an oil analysis at 7750 miles and soot was 1.1%. Not alarming in my view (I use M1 TDT), but I decided to play it more conservatively and stick with intervals in the 5-6K range. Part of my logic is that, if I ever have a timing chain snap, I don't want to be in the position of saying, "If only I had changed my oil more frequently!"

There was a long and interesting thread a while back on acceptable soot levels.

FWIW, while there are heated debates on this forum between dino and synthetic, everyone here seems convinced that one should only run longer drain intervals with a good synthetic.


Quote:
Originally Posted by davidlee View Post
Respectively, My lifters are quiet and my engine already runs smoothly.
Motor oil has came along way, you can do oil analyhsis on Conventional 15W40 HD oil at 8-9 k and it will show good, all you have to worry about is soot contamination, that will happen long before the oil is worn out. so unless you run high EGT's and or dont allow for proper turbo cool down time, Synthetic engine oil is kind of a waste of $$$ in a Diesel from what ive learned.
But to everyone there own. Im just one person last time I counted.

just go to (B*# is the oil guy. com) if you dont believe me.
its like the PP of the oil community.
__________________
06 E320 CDI "Benson", Platinum Blue, 171k mi, DD
91 300D "Otis", Smoke Silver, 124k mi, other DD
98 E300 "Murray", Silver, 124k mi, Stage 2 Rocketchip chip tuned, son's DD

Twelve other MB's owned and sold
2002 Honda Odyssey 230k mi (want to name it "Homer," wife won't let me)
1961 Very Tolerant Wife
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  #20  
Old 05-18-2012, 01:59 PM
davidlee's Avatar
davidlee
 
Join Date: Mar 2012
Location: Portland OR
Posts: 548
Quote:
Originally Posted by shertex View Post
Just out of curiosity, what soot levels are you seeing at 9k miles? And, is your EGR deleted?

On my 602 (5-cylinder and with EGR still intact), I did an oil analysis at 7750 miles and soot was 1.1%. Not alarming in my view (I use M1 TDT), but I decided to play it more conservatively and stick with intervals in the 5-6K range. Part of my logic is that, if I ever have a timing chain snap, I don't want to be in the position of saying, "If only I had changed my oil more frequently!"

There was a long and interesting thread a while back on acceptable soot levels.

FWIW, while there are heated debates on this forum between dino and synthetic, everyone here seems convinced that one should only run longer drain intervals with a good synthetic.
I have not done an check on soot level for my oil yet, but I have have tons of buddies that run Cummins and Powerstrokes, and they just Belt out smoke when they drive hard. tons of soot, which means more going into oil. Way more than what my car would produce, at around 10K my friend did a soot check on his oil and It was 1.8%. less than 2% is safe.
His truck sees way more severe driving than my Benz does so I figred since Im running All stock, Except re route vac lines and EGR blocked off. I should be perfectly safe up to 8K.
When I get upto 5K on this oil I will do a check to see where I sit on soot and oil breakdown.
__________________
Live simply so others can simply live


87 300D Turbo (Daily)
83 300D N/A Euro (Sold recently )
84 230E Euro (Parked) posbl. broken flywheel or worse (for sale soon)
87 190E 2.3 (200K when purchased, 300K now and still drives awesome)
82 GMC Jimmy (K5) 6.2 Diesel
73 Roadrunner 340ci My very first car, still own it
92 Talon AWD turbo w/ upgrades
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  #21  
Old 05-18-2012, 02:08 PM
davidlee's Avatar
davidlee
 
Join Date: Mar 2012
Location: Portland OR
Posts: 548
Just to set the record straight, Im not trying to tell anyone to do what I do or My way is the right way, Im just telling you how I do it,
If someone finds a major flaw in my way of doing it, Please let me know,
I can only work off the Knowledge I have been taught or have learned thus far. I have a passion to learn more. so Please teach me, I love reading.
__________________
Live simply so others can simply live


87 300D Turbo (Daily)
83 300D N/A Euro (Sold recently )
84 230E Euro (Parked) posbl. broken flywheel or worse (for sale soon)
87 190E 2.3 (200K when purchased, 300K now and still drives awesome)
82 GMC Jimmy (K5) 6.2 Diesel
73 Roadrunner 340ci My very first car, still own it
92 Talon AWD turbo w/ upgrades
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  #22  
Old 05-18-2012, 07:20 PM
Registered User
 
Join Date: Jul 2004
Location: Barrington, RI
Posts: 5,271
The following thread I started a while back may be of interest....on acceptably safe soot levels.

Acceptably Safe Soot Levels: Can Anyone Speak with Authority?

Quote:
Originally Posted by davidlee View Post
Just to set the record straight, Im not trying to tell anyone to do what I do or My way is the right way, Im just telling you how I do it,
If someone finds a major flaw in my way of doing it, Please let me know,
I can only work off the Knowledge I have been taught or have learned thus far. I have a passion to learn more. so Please teach me, I love reading.
__________________
06 E320 CDI "Benson", Platinum Blue, 171k mi, DD
91 300D "Otis", Smoke Silver, 124k mi, other DD
98 E300 "Murray", Silver, 124k mi, Stage 2 Rocketchip chip tuned, son's DD

Twelve other MB's owned and sold
2002 Honda Odyssey 230k mi (want to name it "Homer," wife won't let me)
1961 Very Tolerant Wife
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  #23  
Old 05-18-2012, 07:24 PM
sixto's Avatar
smoke gets in your eyes
 
Join Date: Jun 2000
Location: SF Bay Area
Posts: 20,115
Quote:
Originally Posted by vstech View Post
afik, only the 126/140 603's have the clearance underhood to remove the lid with the shaft in place...
140 603 has a removable center shaft too.

Sixto
87 300D^2

Last edited by sixto; 05-18-2012 at 08:11 PM.
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