Oil pump solenoids
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GLK350, SL500 (R230), E55 (w210)
Correct, once it's unplugged the "default" is "normal" pressure (not low pressure mode, ~25 psi)
... on the m276 when it's in low pressure I understand the piston oil squirters are not active... wild stuff
... on the m276 when it's in low pressure I understand the piston oil squirters are not active... wild stuff
Last edited by Bertie_; Nov 29, 2024 at 03:06 PM.
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only triggers it to be high pressure when above 3.5K rpm…?
I wonder on this forum who has driven the most with the solenoid plug, unplugged. Their recorded feedback would be much helpful.
Many reviews IMO seems to be speculations or even perhaps placebo.
(never unplugged)
Last edited by E63SAMG2014; Nov 29, 2024 at 02:29 PM.
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Why is it on low pressure under 3.5K rpm..?
only triggers it to be high pressure when above 3.5K rpm…?
I wonder on this forum who has driven the most with the solenoid plug, unplugged. Their recorded feedback would be much helpful.
Many reviews IMO seems to be speculations or even perhaps placebo.
(never unplugged)
only triggers it to be high pressure when above 3.5K rpm…?
I wonder on this forum who has driven the most with the solenoid plug, unplugged. Their recorded feedback would be much helpful.
Many reviews IMO seems to be speculations or even perhaps placebo.
(never unplugged)
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2014 E63 / 2017 CLS 63 / 2015 G63
Fuel economy I guess and all the regulations. Same goes with why engine oil keeps on getting thinner. Most people that drive in stop and go drive at below 4K rpms anyways. Higher than that, there just needs be more oil pressure (normal oil pressure) to protect the engine from accelerated damage.
if unplugged, it’s a constant high pressure at all times.
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From: KY
2015 E63S Sedan, 2014 E550 Coupe, 2013 E350 Wagon
It may seem a matter of semantics, but I much prefer the description from the FAQ in the original post…NORMAL oil pressure (flow) when the solenoid is not activated, and REDUCED/Lower pressure when solenoid activated. In other words, normal is absence of the influence of this mechanism, and the only function is to reduce below normal pressure. In other words, there is no ‘high’ pressure’…only normal or reduced pressure
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GLK350, SL500 (R230), E55 (w210)
It may seem a matter of semantics, but I much prefer the description from the FAQ in the original post…NORMAL oil pressure (flow) when the solenoid is not activated, and REDUCED/Lower pressure when solenoid activated. In other words, normal is absence of the influence of this mechanism, and the only function is to reduce below normal pressure. In other words, there is no ‘high’ pressure’…only normal or reduced pressure
There's a video of someone tracking the oil pressure solenoid
I'm not an expert on all these engines, I just read this thread and made a decision for myself
Rock on
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W212 MY'14 M276-3.5NA @75kMi
rings cleaning journey
Them be fighting words around here, I personally did not feel any significant difference and I've been unplugged for several months. Several other people reported they didn't feel any difference. There's no empiric data either way to know what this "modification" is doing or not doing.
How many Miles since initially unplugged?
Is it time to upgrade better oil ?
ESTER in API-SP in 5w40 or greater.
Last edited by CaliBenzDriver; Nov 29, 2024 at 03:09 PM.
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GLK350, SL500 (R230), E55 (w210)
So environmental / hitting government fuel efficiency ratings
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will do 5w-40 next change in summer
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W212 MY'14 M276-3.5NA @75kMi
stock conditions
Reduced oil viscosity is used for 10,000.Mi for the same gas savings reasons.
Limited engine lubrication does not radically impact its longevity below 100kMi.
> Side Effects Are...
- Weak engine throttle lag
- Tranny confused in low gears
- Engine blow-by pressure
- Extreme heatsoaks: coolant/oil leaks
- Loose metals ( cams; pistons; bores; bearings; VVT Locks)
- Killer solenoid stuck on low!
Last edited by CaliBenzDriver; Nov 29, 2024 at 03:28 PM.
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2014 E63 / 2017 CLS 63 / 2015 G63
hypothetically, if a driver drives it under 3500 rpm for over 20K miles for example. Would they be more prone for scoring and sorts of that nature?
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W212 MY'14 M276-3.5NA @75kMi
ALL NORMAL....
Driving under these conditions will make the engine weak with drafty pistons and lean fuel maps.... Lag + Misfires - It does save gas.
The stock experience all works out well with standard service.
Last edited by CaliBenzDriver; Nov 29, 2024 at 03:39 PM.
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W212 MY'14 M276-3.5NA @75kMi
NO SURPRISE
I know you're familiar with misfires. Notice that new coils do not cure all of it, lean misfires come back!
Some misfires are caused by lean mixtures: the edge of the laggy ballpark when drafty cylinders becomes increasingly significant, even on boosted engines.
-- The NA engine is more sensitive to small pressure variations.
-- The TT engine can easily offset drafty cylinders with boost pressure.
-- Low viscosity oil does not effectively spray seal below 2200.Rpm
There's no seal improvement on stock oil. You're going to need to step up viscosity when your rings meet your cleanliness criteria.
Motivations to upgrade may be:
- heavy slow pickup
- laggy spongy throttle
- goofy tranny gear ratio
- lean misfires fish bites
- extreme heatsoaks
If you like numbers observe your LTFT at warm idle. It's a marker of cylinder wear.
Last edited by CaliBenzDriver; Nov 29, 2024 at 04:26 PM.
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Yes it stays at normal oil pressure regardless of RPMs, others explained it much better.
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W212 MY'14 M276-3.5NA @75kMi
Under improved conditions, pressure still vary between low and max. The idle pressure is very similar in both cases. It just increases on a faster slope.
We've seen hydraulic VVT gear and piston rings benefit from better oiling. This is delivered with higher viscosity ester oil.
Last edited by CaliBenzDriver; Nov 29, 2024 at 06:52 PM.
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W212 E63 S AMG
Thanks for the detail... I've been running this for the last 8k (two oil changes), and the car is very stable and consistent. Idle is rock solid
https://www.liqui-moly.com/en/us/syn...0345.html#2041
Would you consider jumping from that to the 5w50 supercar ( ) a reasonable next move?
https://www.liqui-moly.com/en/us/syn...0345.html#2041
Would you consider jumping from that to the 5w50 supercar ( ) a reasonable next move?
Last edited by QuadTurboPrius; Nov 29, 2024 at 08:48 PM.
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Oil pressure is limited by lower volume using a solenoid valve that decrease pump output.
Under improved conditions, pressure still vary between low and max. The idle pressure is very similar in both cases. It just increases on a faster slope.
We've seen hydraulic VVT gear and piston rings benefit from better oiling. This is delivered with higher viscosity ester oil.
Under improved conditions, pressure still vary between low and max. The idle pressure is very similar in both cases. It just increases on a faster slope.
We've seen hydraulic VVT gear and piston rings benefit from better oiling. This is delivered with higher viscosity ester oil.
Motor on
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W212 MY'14 M276-3.5NA @75kMi
LIGHT AND FAST!
Thanks for the detail... I've been running this for the last 8k (two oil changes), and the car is very stable and consistent. Idle is rock solid
https://www.liqui-moly.com/en/us/syn...0345.html#2041
Would you consider jumping from that to the 5w50 supercar (https://www.amazon.com/dp/B0BWPLYYTT) a reasonable next move?
https://www.liqui-moly.com/en/us/syn...0345.html#2041
Would you consider jumping from that to the 5w50 supercar (https://www.amazon.com/dp/B0BWPLYYTT) a reasonable next move?
You will have a great experience with the Mobil1:5W50 Supercar oil.
We've reviewed it here.
It has a nice balanced protection package based on high temperature ester oil. Meaning this will truly keep your engine clean & protected.
Its's a good upgrade path from the LM:5W40 SN you referenced above.
> POST Upgrade:
Your engine/tranny maps will temporarily act a bit confused below 2000Rpm for about 500Mi until ECU/TCU perfectly self-adapt to new performance level.
Frequent 30Mi trips will be better than one long one.
You will notice throttle getting gradually more precise - Same for tranny matching the engine improvements.
By the time improvements are done... pressure sensitive throttle will be exhilarating with rich responsive mixtures from 900.Rpm where lean-lag used to anchor.
This should quickly become available with regular driving.
+++ Do clean your filter bypass valve during oil filter replacement.
A pressure sensitive throttle on a twin turbo... OMG ultimate city/Hwy driveability
+++No questions Turbo always put out power above 3k, this is going to fill in the lower range when significant losses impact fuel map by way of timings jitter.
Last edited by CaliBenzDriver; Nov 30, 2024 at 01:18 AM.
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2014 E63 / 2017 CLS 63 / 2015 G63
Yes, absolutely !
You will have a great experience with the Mobil1:5W50 Supercar oil.
We've reviewed it here.
It has a nice balanced protection package based on high temperature ester oil. Meaning this will truly keep your engine clean & protected.
Its's a good upgrade path from the LM:5W40 SN you referenced above.
> POST Upgrade:
Your engine/tranny maps will temporarily act a bit confused below 2000Rpm for about 500Mi until ECU/TCU perfectly self-adapt to new performance level.
Frequent 30Mi trips will be better than one long one.
You will notice throttle getting gradually more precise - Same for tranny matching the engine improvements.
By the time improvements are done... pressure sensitive throttle will be exhilarating with rich responsive mixtures from 900.Rpm where lean-lag used to anchor.
This should quickly become available with regular driving.
+++ Do clean your filter bypass valve during oil filter replacement.
A pressure sensitive throttle on a twin turbo... OMG ultimate city/Hwy driveability
You will have a great experience with the Mobil1:5W50 Supercar oil.
We've reviewed it here.
It has a nice balanced protection package based on high temperature ester oil. Meaning this will truly keep your engine clean & protected.
Its's a good upgrade path from the LM:5W40 SN you referenced above.
> POST Upgrade:
Your engine/tranny maps will temporarily act a bit confused below 2000Rpm for about 500Mi until ECU/TCU perfectly self-adapt to new performance level.
Frequent 30Mi trips will be better than one long one.
You will notice throttle getting gradually more precise - Same for tranny matching the engine improvements.
By the time improvements are done... pressure sensitive throttle will be exhilarating with rich responsive mixtures from 900.Rpm where lean-lag used to anchor.
This should quickly become available with regular driving.
+++ Do clean your filter bypass valve during oil filter replacement.
A pressure sensitive throttle on a twin turbo... OMG ultimate city/Hwy driveability
what oil did you use on your last oil change, current and next oil change, what will you use?
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
PAST PRESENT FUTURE oils...
past and current oils
800Mi on MOT.5W50 👍
Next oil may be a repeat 5w50 in Motul or a Castrol, Pennzoil, Mobil1 or a 10w50 if viscosity shear on MOT:5w50 is significant.
Every new oil starts great then falls of the clif at some point... Motul has been tought
Definitely within W50 range for sure.
The happy median is to have enough viscosity reserve that it can shade a bit without being to noticeable early.... 4500Mi ok.
I want to drive a stable 0w50 so I begin with a 5 or 10w50 later.
Last edited by CaliBenzDriver; Nov 30, 2024 at 01:47 AM.
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04 E55 AMG (totaled), 07 S550 4Matic, 14 E63S
I forgot to post on the 1 year thread anniversary. But last year, I posted this and then had to put the car away before I could put many miles on it. Here we are with below freezing temps finally hitting the northeast and I am faced with having to put the car away, again. This time, the FOMO is triggered from the 5W-50 discussion. I'll be due for an oil change next spring-ish and will have to defer my gratification until then. Meanwhile I can live vicariously through posts on the results.
