t3flondon

I hear so much about what the best oil for the CL AMG is. I would like to hear what the forum has to say.

V12Godspeed

I use Mobil 1 synthetic 0-40...it's what benz uses.

m_berman

What is a good grade in one car may not be in another. Especially due to locale and weather conditions.

New cars should be fine with 0-20 in winter and mild climates.

0-30 in summer. I would use 0-40 for summer driving in 100+ degrees and race days.

If you have a high mileager-- more than lets say 75k, or it consumes more than a couple of quarts between oil changes, under normal driving conditions, consider 0-40.

Just my $ .02

mfncl63

+1.

Timeless

http://www.amsoil.com/storefront/afl.aspx

Probably don't need to spend the extra, but I feel better with it.

Others will argue it is not 229.5 certified...only 229.51, but I believe it is a great oil and my Service Advisor is even a dealer for it (which I found out later).

t3flondon

Bingo! give that man a prize, see now the good stuff comes out, I always hear from my fellow Merc mod buddies that amsoil or Royal Purple is the magical fountain of youth for cars even though they are not 229.5 certified, the plot thickens, lets hear more

MBZFAN55

I would not deviate from the recommended weight, i.e. 0w40, etc., but I think you will find numerous oil brands as being on the MB "accepted" list. In the US, Mobil1 has purchased the "recommended" slot, while Shell has the European rights for AMG vehicles. Other brands such as Valvoline & Kendall are approved in certain year AMG's, but not all accepted brands are approved in all available weights, including Mobil1.

V12Godspeed

I only do it because my car visits the strip often, not to mention I am pushing 800+ HP...

Timeless

Recommended weights range depending on climate. IIRC, the manual goes from 0w40 to 15w40 depending on the climate.

MBZFAN55

Absolutely, my 0W40 was merely an example.

1badassbenz

0w40 I have also tried Motul and Helix both a great oil as well

Moviela

Motor oil is motor oil. That was true in the 1960's. All brands were the same, colored purple or not. Today the story is different. Mercedes has chosen to engineer the fluids with the mechanical systems in the engines. They have specified perimeters that the oil must meet to work in the designed conditions. That, for gasoline engines, is Sheet 229.5 for current engines. Amsoil, Royal Purple, and Raylube are not on Sheet 229.5. Not that they are inferior products, but because they do not meet the specifications for lubricating oil in Mercedes engines.

There are numerous brand names on Sheet 229.5, but the easiest to get is Mobil 1 0W-40 in the US. Be aware that most Mobil 1 products are not Sheet 229.5 certified. Also be aware that the viscosity range shown in the manual is Federally mandated, but not in agreement with the viscosity range of the approved oils on Sheet 229.5.

The reason many oils do not meet the standard is the additive package in the oil. The synthetic base stocks are all very similar, and really do not "wear out." What becomes depleted is the additive package that is ravaged by the products of combustion. Sheet 229.5 oils have twice the amount of additives as other synthetics. This allows the 1 yr/10,000 interval in AMG engines. (with fleece (polyester) filter.)

If you choose to use an off sheet oil in your engine, and then suffer from sludge or an oil related wear breakdown, please call (818) 986-8733. My friends at Local 47 can send over a violinist to play a sad song for you.

MB_Forever

For the 55/65 engines, Mercedes is recommending to use Mobil 1 0W-40. However, I think this is just a recommendation based on national average weather climate. If you live in a "hotter" climate you may want to use thicker oil to protect engine components. In certain parts in Africa and Middle East, Mercedes dealers recommend Mobil 1 5W-50.

For 63 engines, Mercedes recommends Mobil 1 5W-40 (used to be 0W-40 and then they changed their minds in March of 2008 ).

And finally, for the SLR, Mercedes recommends Mobil 1 5W-50.

Timeless

I can assure you the oils you mentiond above have as much or more additive wear package products as Mobile 1.

That being said, they did not bother to lower their standards to get 229.5 certified (or possibly did not want to pay), so you would of course be in the right if it came down to it.

alx

i think you are setting a very dangerous precedent. actually come to think of it your advice is plain dangerous.

if you knew anything about german school of engine building - germans favor higher oil (engine) temps to maximize engine output - 210-220 is typical and they strive to maintain it. japanese favor 180 and americans fluctuate between 160 and 210 and dont really try to keep it constant. the 0w40 oil requirement on most (if not all) german cars (excluding things like the e60 bmw m5 that require XXw60 oil) reflects the longevity of the oil that is expected at this temperature (210-220)

do not, i repeat- do not use anything thinner that 40 weight on the hot side. the "0" on the cold side is debatable, but the 40 is not. older engines that burn oil will benefit from higher hot side (50 or 60) but will be more prone to sludging.

also, if the folks that have designed and built those engines say they require 0w40 - what makes _you_ think that 0w20 is "ok on new cars"? i understand your logic (tighter clearances on new engines), but... in my mind you are absolutely wrong...

alex
few cars

Mac Lethal

Mobile 1 is the way to go...I've been using it for sometime now and have never had any major problems.

Mac Lethal

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