Mobil One
I missed the day when they had the Mobile 1 15w-50 for high working temperture engines. Those worked perfectly during the summer. I still have 3qt of it.


Sure, disregard the instructions in the MB manual. Clearly you have greater knowledge than the MB engineers, who bothered to define explicit requirements.
BTW, the manual does not limit the vehicle to 0W-40, or to Mobil 1. With all the various posts admonishing members to RTFM, I am surprised to observe all those who still fail to follow that advise.
These are from my "Factory Approved Service Products" booklet dated Oct'00 for my '01 model car and it is good for FSS equiped vehicles back to '98. I have the same engine as you. Sorry about the poor quality of pictures....no scanner.

so I went 30 minutes ago on my lunch break and they basically just added oil (and windshield washer fluid) in the driveway. they didn't even write me up or anything, I was in and out in less than 10 minutes. my only thing was that they added oil from a clean unmarked container... I have no clue what viscosity or what that was. oh well... less than 2400 miles till Service B. at least when I checked my MFD it said my oil level was ok.
thanks for the help!
so I went 30 minutes ago on my lunch break and they basically just added oil (and windshield washer fluid) in the driveway. they didn't even write me up or anything, I was in and out in less than 10 minutes. my only thing was that they added oil from a clean unmarked container... I have no clue what viscosity or what that was. oh well... less than 2400 miles till Service B. at least when I checked my MFD it said my oil level was ok.
thanks for the help!


The more-current document I referenced, groups MY '98 through MY '04 vehicles together with one set of acceptable oils, while MY '05 vehicles have a different set of acceptable oils.
so I went 30 minutes ago on my lunch break and they basically just added oil (and windshield washer fluid) in the driveway. they didn't even write me up or anything, I was in and out in less than 10 minutes. my only thing was that they added oil from a clean unmarked container... I have no clue what viscosity or what that was.

Sure, disregard the instructions in the MB manual. Clearly you have greater knowledge than the MB engineers, who bothered to define explicit requirements.
BTW, the manual does not limit the vehicle to 0W-40, or to Mobil 1. With all the various posts admonishing members to RTFM, I am surprised to observe all those who still fail to follow that advise.
please stop acting like it's the first time everyone else had ever owned a MBZ.
The Best of Mercedes & AMG
The more-current document I referenced, groups MY '98 through MY '04 vehicles together with one set of acceptable oils, while MY '05 vehicles have a different set of acceptable oils.
Some forum members maintain an inventory of spare acceptable oil on-board, in anticipation of this expected event.
the 320 engine in the C-class remain unchanged from 2001-2005. They have a different set of oil list because some of the manufacturer have discountinued some of the grades that were listed. It's not because the engine has changed.

BTW, the manual does not limit the vehicle to 0W-40, or to Mobil 1. With all the various posts admonishing members to RTFM, I am surprised to observe all those who still fail to follow that advise.
What the hell are you doing on a forum if you believe anything and everything just because MB said so? How many times has someone here gone to the dealer and been given some BS advice?
Do you even understand what the numbers mean? Different climates/conditions require different viscosity oils. Using Mobile 1 10w40 is not going to void his warranty. It's in the range of recommended viscosities, and a recommended brand. And I'd be willing to bet there's dealerships out there using it in the cars. And I'm not positive if it would cover fluid changes - but wouldn't the Magnuson-Moss act prevent MB from even being able to void the warranty?
MB didn't avoid specifying other weights/brands/etc because the oil won't work... it's because there is no possible way to include EVERY combination that works - the list would be endless and ever-changing. (No, I don't know this for a fact - but as an engineer who writes specifications, I deal with similar situations ever day). Not to mention if they had to address which oil to use for which conditions - it'd be way over the head of many MB drivers.
Yes, in general, it's a good idea to follow the manual - but it doesn't address everything. It can't, the manual would be huge. MB gives the tire pressures on the car - but they're not the best pressures to use for all driving purposes, conditions, and tires. Just another example of where they provide a "base case," but don't address every possible combination.
Your engine and mine are identical so that doesn't make sense. The original poster has a 4 cylinder, supercharged, totally different engine. If you look at what's acceptable just about any weight is OK until you get to -5F and 20W stops being recommended. On my chart the upper limit of 86F and above is covered by everything from 0W-30 to 20W-50.


So, if as you've stated, the engine oil requirements are unchanged between the two groups, why would there be two tables in the manual? Presumably oil grades were not discontinued between the manual’s editor typing of one table and the next.
Sure, disregard the instructions in the MB manual. Clearly you have greater knowledge than the MB engineers, who bothered to define explicit requirements.
BTW, the manual does not limit the vehicle to 0W-40, or to Mobil 1. With all the various posts admonishing members to RTFM, I am surprised to observe all those who still fail to follow that advise.
please stop acting like it's the first time everyone else had ever owned a MBZ.
There should be no confusion about the validity of the information presented. On one hand MB documentation is cited, chapter and verse, on the other hand anecdotal references to sibling’s vehicles are used.
Sure, disregard the instructions in the MB manual. Clearly you have greater knowledge than the MB engineers, who bothered to define explicit requirements.
BTW, the manual does not limit the vehicle to 0W-40, or to Mobil 1. With all the various posts admonishing members to RTFM, I am surprised to observe all those who still fail to follow that advise.
In a situation like that should your post be brought to the dealership to resolve any warranty disputes?


Of particular interest is this information, contained within the link:
some oils which are not recommended:
Mobil 1 SuperSyn 0W-30 SL/SJ/CF A1/B1/A5 9.7 doesn't meet 229.1 nor ACEA A2 or A3
Mobil 1 SuperSyn 5W-30 SL/SJ/CF A1/B1/A5 9.8 doesn't meet 229.1 nor ACEA A2 or A3
Mobil 1 SuperSyn 10W-30 SL/SJ/CF A1/B1/A5 10.1 doesn't meet 229.1 nor ACEA A2 or A3
These 3 oils do not meet MB spec of > 3.5 cP for high temperature high shear strength.


According to this link oils with those approvals are acceptable for MY '97 and earlier. Additionally, the link states those oils are acceptable "only if MB sheet 229.3 or 229.5 is not available".
The linked information includes a page from the MY '02 M-Class manual, which states: "Approved engine oils (synthetic/mineral) may be mixed. However, we only recommend mixing engine oils of the same quality grade and SAE class.”



My review of my posts does not reveal any claims, by me, of expertise in viscosity. That appears to be a slippery topic.
My plan is to continue providing correct information, with supporting documentation. I’ll leave my detractors to continue to provide the opposite.
My review of my posts does not reveal any claims, by me, of expertise in viscosity. That appears to be a slippery topic.
My plan is to continue providing correct information, with supporting documentation. I’ll leave my detractors to continue to provide the opposite.
no wonder Axxis didn't even bother listening to your post.


Ive looked in the manuel.
I already put in the 0w-40... so o well!



If, and only if, you buy a fleece filter you can extend the service interval to 1 year or 13000 miles, which ever occurs first. This filter and oil combination allow the extended service interval, and can be used on older W203.
Good news oil fans, a sponsor of this forum now carries the fleece filter in a Mann-Hummel package. Performance Products in Van Nuys has them. Part no. 18-095 is a Mann HU718/5X. It comes with the o rings for $ 15.85 plus packing and post. Performance Products web site is wrong, it shows different filters for this Mann filter which is the preferred replacement by Mercedes Benz. Might be good to call them and inquire (800) 752-6268.
My C240 which I have read is a similar block to the C320, holds nearly eight (8) quarts of oil.







