Which Engine Oil?
Senior Member
Joined: Mar 2018
Posts: 485
Likes: 153
From: KY
2015 E63S Sedan, 2014 E550 coupe
@Jaybird123 hey been digging into oil options and found the Mobile 5W50 supercar oil you referred to in this post from last year…. Is your car tuned and if so how did this oil perform vs the standard 0W40?
I cannot say if I prefer it over similar Motul, but I like the M1 price and Amazon availability. Amsoil is my favorite oil thus far, but I find it price prohibitive given the high mileage and 3 MB’s I maintain
Out Of Control!!
Joined: Apr 2019
Posts: 11,922
Likes: 6,775
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
K.I.S.S.
New oil certification: https://youtu.be/FwuKXRod5hk
Jason touch base on familiar topics but could do a much better job showcasing his sponsor high-detergent oil.
"Advanced Clean" is the answer from Mobil1 own additives formulator.
The viscosities match smaller engines application we can't touch with our hydraulic Phasers.
There is an easy way to run all the jobs of lubricants... it's available from effective oiling instead of limited oiling!
Oil cleans when it stops burning.
If you want to wash off burnt oil deposits, this product is not MB Approved.
Lately the development of cleaning oil speaks to mounting blowby issue from hot crusted rings.
Last edited by CaliBenzDriver; Apr 4, 2026 at 01:03 AM.
Out Of Control!!
Joined: Apr 2019
Posts: 11,922
Likes: 6,775
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
against oil additives...
The 'Motor Oil Geek" speaks against additives with lab numbers.
> BALANCED FORMULA....
The rational is additives are concentrated extreme formulations designed to boost engine oil.
The issue is that engine oils are well balanced blends that suffer when boosted one way too much. Meaning too much of a good thing is bad.
Lake briefly talks about friction vs. wear additives to say lower friction can add wear.
> CLEANING FORMULA...
One of the hot topic not discussed is oil detergent. It's a tough act because what loosens deposits also makes the oil film not cling well.
The new cleaning chemistry featured in Valvoline and now Mobil1 lubricants is an advanced agent that may work without hurting lubrication too much.
> DOUBLE-TALK...
In todays video Lake repeatedly talks about extending drain intervals...
In prior videos Lake spoke about drain intervals as a wholesome bad idea to stretch oil life beyond its effectiveness:
Improving pistons ring seal delivers a lot of positives including less contaminants.
> BALANCED FORMULA....
The rational is additives are concentrated extreme formulations designed to boost engine oil.
The issue is that engine oils are well balanced blends that suffer when boosted one way too much. Meaning too much of a good thing is bad.
Lake briefly talks about friction vs. wear additives to say lower friction can add wear.
> CLEANING FORMULA...
One of the hot topic not discussed is oil detergent. It's a tough act because what loosens deposits also makes the oil film not cling well.
The new cleaning chemistry featured in Valvoline and now Mobil1 lubricants is an advanced agent that may work without hurting lubrication too much.
> DOUBLE-TALK...
In todays video Lake repeatedly talks about extending drain intervals...
In prior videos Lake spoke about drain intervals as a wholesome bad idea to stretch oil life beyond its effectiveness:
- high contaminants are abrasive!!
- oil dilution from fuel is quickly bad!
- lower sheared viscosity impact spray Rpm
- degraded formula components
Improving pistons ring seal delivers a lot of positives including less contaminants.
Last edited by CaliBenzDriver; Apr 4, 2026 at 04:57 PM.
MBWorld God!
Joined: Dec 2019
Posts: 32,222
Likes: 6,281
The 'Motor Oil Geek" speaks against additives with lab numbers.
YT VDO
> BALANCED FORMULA....
The rational is additives are concentrated extreme formulations designed to boost engine oil.
The issue is that engine oils are well balanced blends that suffer when boosted one way too much. Meaning too much of a good thing is bad.
Lake briefly talks about friction vs. wear additives to say lower friction can add wear.
> CLEANING FORMULA...
One of the hot topic not discussed is oil detergent. It's a tough act because what loosens deposits also makes the oil film not cling well.
The new cleaning chemistry featured in Valvoline and now Mobil1 lubricants is an advanced agent that may work without hurting lubrication too much.
> DOUBLE-TALK...
In todays video Lake repeatedly talks about extending drain intervals...
In prior videos Lake spoke about drain intervals as a wholesome bad idea to stretch oil life beyond its effectiveness:
Improving pistons ring seal delivers a lot of positives including less contaminants.
YT VDO
> BALANCED FORMULA....
The rational is additives are concentrated extreme formulations designed to boost engine oil.
The issue is that engine oils are well balanced blends that suffer when boosted one way too much. Meaning too much of a good thing is bad.
Lake briefly talks about friction vs. wear additives to say lower friction can add wear.
> CLEANING FORMULA...
One of the hot topic not discussed is oil detergent. It's a tough act because what loosens deposits also makes the oil film not cling well.
The new cleaning chemistry featured in Valvoline and now Mobil1 lubricants is an advanced agent that may work without hurting lubrication too much.
> DOUBLE-TALK...
In todays video Lake repeatedly talks about extending drain intervals...
In prior videos Lake spoke about drain intervals as a wholesome bad idea to stretch oil life beyond its effectiveness:
- high contaminants are abrasive!!
- oil dilution from fuel is quickly bad!
- lower sheared viscosity impact spray Rpm
- degraded formula components
Improving pistons ring seal delivers a lot of positives including less contaminants.
Out Of Control!!
Joined: Apr 2019
Posts: 11,922
Likes: 6,775
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Used Oil Analysis
Getting your own engine sample analyzed can let you spot significant fuel dilution from rings blow-by and leaky injectors.
All oils are good for a while from ~3 to 5k Miles then fall out of spec more or less fast. Fresh oil is the simple way to mitigate issues.
Last edited by CaliBenzDriver; Apr 18, 2026 at 10:37 PM.
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Purchase Amsoil at 25% off from me
Chris Tran, Retired Alpha European Autotech Owner
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Alpha European Autotech
Purchase Amsoil at 25% off from me
Chris Tran, Retired Alpha European Autotech Owner
Amsoil Independent Dealer #7236674
