Mobile 1 engine oil viscosity?

[noogieman]

I'm using Mobile 1 0w40 on my c43.
I found Mobile 1 oil 5w50 to be cheaper in price.
It's a bit thicker than the 0w40 oil, is it recommended to use 5w50 on my c43?

I have only used fully synthetic motor oil on my car, so I c an save a few quids if I buy the 5w50 oil.
Is it good or bad using this oil?
Does MB still recommend this oil today on their newer cars?

 

[momomo]

The spec you need is MB 229.3 but the highest spec is MB 229.5 which Mobil 1 0w40 meets and is perfectly fine for your car.

Mobil 1 5w50 meets MB 229.3 and is also fine for your car. 0w40 is a lighter weight oil.

I believe if you drive your car quite hard or like to take it on a track the 5w50 oil will be better for you.

 

[markjay]

I believe that 50 oil is only recommended in hot climate and for racing - I think you'll find that for everyday use in the UK your choice is between 30 and 40, but not out of this range.

 

[Rory]

I'm using Mobile 1 0w40 on my c43.
I found Mobile 1 oil 5w50 to be cheaper in price.
It's a bit thicker than the 0w40 oil, is it recommended to use 5w50 on my c43?

I have only used fully synthetic motor oil on my car, so I c an save a few quids if I buy the 5w50 oil.
Is it good or bad using this oil?
Does MB still recommend this oil today on their newer cars?

Have you got the service book? There's a chart in the back with recommended oil viscosities depending on ambient temperature.

Compared to what's generally used these days (30 or 40) 50 seems a bit heavy, but then BMW M models use 10W60.

 

[jefrs]

MB spec 229 - I posted a link on another thread http://www.mbclub.co.uk/forums/engine/95329-engine-oil.html#post1045528

MB Spec 229.1 here Mercedes-Benz Specifications for Operating Fluids: Engine Oil, Gear Oil, ATF, Coolant, Brakefluid
- but do check the other 229.xx updates

Mobil 1 is full synth MB229.xx and 0W-40 is the usual suspect

0W-40 goes to lower ambient temperature than 5W-50 which will go hotter.

There should be a temperature diagram in your Service Booklet.
We don't live in the tropics or the arctic then either would do.
Ambient temperature is outdoors weather not engine operating temperature ;-)
5W-30 would do the job nicely provided it's MB 229.1 through 229.51

 

[jaymanek]

im pretty sure the C43 and C32's have to be run on Mobil 1 0w40.

 

[Bellow]

The internal clearances and the oil viscosity can be considered a matched pair.
MB know best...They built it.

 

[jefrs]

I notice that the UK has different Mobil 1 specs than other parts of the world
Mobil 1 UK | Products | Mobil 1 Extended Life 10W-60

Some of these oils are not listed on their global website.

Apparently "Extended Life 10W-60" is 229.1 and "New Life 0W-40" 229.3 and 229.5

On the German site Mobil 1 de | Produkte | Rally Formula 5W-50
the "Rally Formula 5W-50" has 229.1/229.3 approval.

The numbers are SAE viscosity, low numbers are thin. In milspec terms white spirits is OM1 = Oil Mineral, No.1 (SAE 1) thin!

I think you'll find it's Mobil recommending 0W-40 for these motors, MB list a range of viscosities depending on temperature ranges where you are in the world, provided that the oils meet their 229.xx specifications.

Note that in some parts of the world they put stuff in the petrol that messes some oils up, they add a lot of ethanol in the USA.

 

[BlackC55]

All modern AMG's should be run on 0W40 Mobil one or equivelent 229.5 spec oil

 

[markjay]

I notice that the UK has different Mobil 1 specs than other parts of the world
Mobil 1 UK | Products | Mobil 1 Extended Life 10W-60

Some of these oils are not listed on their global website.

Apparently "Extended Life 10W-60" is 229.1 and "New Life 0W-40" 229.3 and 229.5

On the German site Mobil 1 de | Produkte | Rally Formula 5W-50
the "Rally Formula 5W-50" has 229.1/229.3 approval.

The numbers are SAE viscosity, low numbers are thin. In milspec terms white spirits is OM1 = Oil Mineral, No.1 (SAE 1) thin!

I think you'll find it's Mobil recommending 0W-40 for these motors, MB list a range of viscosities depending on temperature ranges where you are in the world, provided that the oils meet their 229.xx specifications.

Note that in some parts of the world they put stuff in the petrol that messes some oils up, they add a lot of ethanol in the USA.

True, there are many types of Mobil 1. In addition - some types of Mobil 1 are not available in Retail package, but only in barrels for garage use. If your garage filled up with Mobil 1, you may find that you can't top up with exactly the same oil....

 

[noogieman]

thanx for the input guys.
I'm very grateful.
I guess I should then continue using Mobile 1 0w40.

But if there's no 0w40 and a sudden chrise occurs then I can use the Rally formula 0w50 oil?
This oil meets the standards for AMG engines?
Thanx for your help

 

[jefrs]

The approval list for 229.1 is long whereas that for 229.5 is quite short.

Is MB 229.5 an update to MB 229.1 ? That is, are newly developed oils shown on 229.5 in addition to those shown on 229.1 ?

Is 229.1 updated to include newly developed oils ? - I think not.
Or are these oils added to an update such as 229.3 and 229.5 ? - I think likely.

If an oil meets 229.5 then can we assume it also meets 229.1 ?

 

[Bobby Dazzler]

If an oil meets 229.5 then can we assume it also meets 229.1 ?

Yes.

229.5 > 229.3 > 229.1

 

[coolevra]

use Mobil 1 0w40. one of the best oil money can buy. proper PAO oil made from ethelyne gas.

 

[Bellow]

. one of the best oil money can buy.

Good to see you aren't claiming it is the best oil money can buy.

 

[flango]

use Mobil 1 0w40. one of the best oil money can buy. proper PAO oil made from ethelyne gas.

I am so glad you have posted this, in several posts I have said a true synthetic is polymerised ethylene i.e gas to liquid and been flamed for my trouble.

Not a fan of Mobil one though, Shell Helix is better IMHO

But thanks for your post

 

[Bellow]

Looks like he joined here just to say that. Wow, he must really like Mobil 1.

 

[coolevra]

Looks like he joined here just to say that. Wow, he must really like Mobil 1.

awright buddy. joined as i really like the w124 chasis and would like to get one. really want a w124 m104 coupe or om606 estate...ideally mint and black lol... (LONG ASK I KNOW)

work as a process engineer, and from my knowledge mobil make "arguably" the best mainstraim oils.

also i would like to advise, all 0W cold oils oils are more likely to be a proper pao synthetic. so castrol edge 0w30 , mobil 1 0w 40, fuchs supersyn 0w30 are really good oils. u dont really need a racing oil just daft money.

i personally believe mobil 1 0W40 is probaly the best oil to use if you have a well maintained engine, i.e TBN 11.3, viscoity index 186, flashpoint 230 C, HTHS 3.7.

I would love ive any members find an synetic oil with better figures.

 

[coolevra]

I am so glad you have posted this, in several posts I have said a true synthetic is polymerised ethylene i.e gas to liquid and been flamed for my trouble.

Not a fan of Mobil one though, Shell Helix is better IMHO

But thanks for your post

i guess u use 5w40 shell helix ultra, i guess ur motor runs better with this ie quieter..smoother etc. from my knowledge this oil is a severly hydrocraked oil, alought probaly a v v good oil. the best advantage of a proper 0W GTL lubricant is there is no wax in the liquid.

 

[markjay]

That's from an official US MB PDF that has been circulating on the internet (regarding the launch of the W203 facelift in 2004):

'– Synthetic oil according to sheet 229.5 is required
• Mobil 1 0W-40 is recommended by MBUSA'

BTW, MB Temple Fortune in London used Shell Ultra Helix 0W-40 on my w203 in the last service. The dealer before that used Castrol 5W-30. I guess they all do the job