E-Class (W124) 1984-1995: E 260, E 300, E 320, E 420, E 500 (Includes CE, T, TD models)

Liquimoly engine oil in m103

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Old 01-23-2020, 12:27 PM
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2023 e450 cabriolet, 2015 s550, 2024 c300 , 2006 E55, 2005 e320, 2007 gl450, 2014 e63
Liquimoly engine oil in m103

Hey everyone not to start controversy here but I just wanted to add my 0.2 cents. I use Liquimoly lm2332 in my FBO e55 and it runs great! The engine noises went down and the car runs cooler and smoother, so I figured why not add it to my 124 for this service interval. About 1k miles ago, or roughly 5 months ago I did and I will admit, the car runs smoother and I feel as if the engine has gotten quieter on idle. I changed my spark plugs yesterday which whwre completely shot, not sure when the last owner did them but they where BAD, and they barely had any oil on them, and my car does have Leaky valve covers and rear main
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Old 02-17-2020, 10:01 PM
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I had a spark plug electrode drop into the cylinder...collapsed a lifter etc.. My tech who repaired and discovered the issue is a big fan of Liquid Moly... I must say he's made a believer out of me too. You're correct, seems to quiet things down, add protection and does as advertised.

Old 02-18-2020, 04:28 PM
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Originally Posted by SpiderAce
I had a spark plug electrode drop into the cylinder...collapsed a lifter etc.. My tech who repaired and discovered the issue is a big fan of Liquid Moly... I must say he's made a believer out of me too. You're correct, seems to quiet things down, add protection and does as advertised.
I agree; I won’t run any oil in any of my cars besides this oil now
Old 05-15-2020, 06:50 AM
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Ok i might be sold on this information .I have read lots of good reports on the Liqui Moly .But no one said just what specs they used in their M103s .. I use Castrol Magnatec 10w40 semi synthetic .
Old 05-17-2020, 07:37 AM
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No answer ,, thanks .
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Old 05-26-2020, 10:43 PM
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Old 05-27-2020, 04:40 AM
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Originally Posted by optimusprime m1
Ok i might be sold on this information .I have read lots of good reports on the Liqui Moly .But no one said just what specs they used in their M103s .. I use Castrol Magnatec 10w40 semi synthetic .
What is special about the above Castrol ?
Old 05-27-2020, 05:22 AM
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Gazwould check it out on the Castrol web site .
Old 05-27-2020, 07:05 AM
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Magnetic is marketing .

Basically Castrol has 3 quality levels .

GTX , Magnamarketing and Edge .

But then we've been here before..

10W40 semi , naaa , use 5W40 fully and enjoy the benefits .

Absolutely no reason why you couldn't use 229.5 , not expensive either with the main dealers selling genuine Mercedes oil on the bay.

There's no substitute for better oil basestock groups..





And that's why I run a MB requiring 5W30 on a VW oil that has groups III , IV and V .

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Old 05-27-2020, 09:09 AM
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May be , but all the same to me .If its changed at the right intervals of 6months
Old 05-29-2020, 12:48 PM
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Old 07-11-2020, 06:00 AM
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Check out Kent Bragsna on Mercedes Source he recomends Liqui Molly 10w40 M0S2 semi synthetic for the older M103 engines .
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Old 07-21-2020, 05:54 PM
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From recent experience, I now only use 20-50 Touring High Tech Liqui Moly. I'm sold a believer. Won't go in to all the details, but because of a failed spark plug dropping into the cylinder and causing some lifter noise issue, after using Liqui Moly oil and additive, the car has never run smoother. I recently changed the valve cover and then changed the oil and filter. I still had a lifter pump-up issue when the car would sit. After changing the oil, first since the spark plug issue and repair, any remaining noise, click, clack or lifter noise is gone. Period. I took the advice of an independent shop here in Dallas, Auto Hans, and went with Liqui Moly and the related Anti Friction Treatment. The engine has never ran better, never quieter. I've owned it for 25 years, have 140k miles on it and live in Dallas. On a 101 degree day the engine runs cool, smooth with no issues. No more Mobile One, Royal Purple or others, I'm strictly using Liqui Moly. The results where jaw dropping in this instance. Obviously, this is just one instance...your mileage may vary.....

Needless to say, I'm a little picky and take good care of mine. So I didn't take oil selection lightly. I researched. Read and reread literature. Can't tell you why, but everything pointed to Liqui Moly 20-50...and the results paid off.



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Old 07-23-2020, 05:54 PM
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I will just leave this here for anyone with a couple hours to spare.
https://540ratblog.wordpress.com/201...-test-ranking/

I personally use Amsoil products in any engine I give a **** about. Most engines will never come close to putting any oil 'to the test' but having the buffer is what its all about. This posted study gets updated regularly through the years. Oil technology has surpassed whatever your 200 HP can throw at it and my opinion is if it's clean, it will protect your engine.
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Old 08-29-2023, 09:28 AM
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Originally Posted by optimusprime m1
May be , but all the same to me .If its changed at the right intervals of 6months
So did you try the Liqui Moly and notice any change? I'm up for an oil change and considering going down that route. Wondering if anyone can advise, should I simply use Liqui Moly Leichtlauf Mos2 which seems to come with the additive or add the anti-friction additive separately? Engine is m103.

Old 08-29-2023, 10:02 AM
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This was the message i ad back from Liqu Molly

So this is what i had back

Old 08-29-2023, 06:47 PM
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Originally Posted by Trevor Hadley
So this is what i had back
Brilliant! This answers ALL my questions. I'm going to skip on the Motor Clean though (it scares me a little) and use that 10w-40 Mos2 Leichtlauf along with either their Motor Oil Saver or the raving At 205 Reseal.
Old 08-30-2023, 04:50 AM
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Good idea ..

Originally Posted by virtual_law
Brilliant! This answers ALL my questions. I'm going to skip on the Motor Clean though (it scares me a little) and use that 10w-40 Mos2 Leichtlauf along with either their Motor Oil Saver or the raving At 205 Reseal.
I never ever use engine flush.

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