Next Monday I'm taking her in for service A and I was told I can either go with Petronas standard factory oil which is 5W-30 or opt for AMG high performance oil which is 0w-40. I don't mind it being considerably more expensive, but I'd like your opinion on whether this 0w-40 oil is any better for our engines. Is it thicker? Bottle says it's ideal for AMG engines. I drive aggressively half of the time so oil occasionally hit 95°C this past winter and easily went over 100°C last Summer.
Which AMG Oil?
Theo
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Yes we need to be very careful about over filling it otherwise it can impact the engine adversely.
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229.5 is quite a old designation, came out in the days of the old AMG V8’s in the pre-catalyst days, it’s been around since at least 2005.
229.51 and 229.52 are subsequent revisions and take into account more relevant recent developments such as Sulphated Ash requirements, catalytic converters etc.
For a modern highly stressed engine such as the M139 with a turbo and OPF/GPF and modern fuels, I personally would be inclined towards the 229.52.
That’s not to say 229.5 is irrelevant, it will still work fine, just that the additive package probably isn’t as up to date as say 229.52.
The overwhelming factor that makes the difference, is regular oil changes. However complex the additive package, regular oil changes will out perform any old additive package.
229.51 and 229.52 are subsequent revisions and take into account more relevant recent developments such as Sulphated Ash requirements, catalytic converters etc.
For a modern highly stressed engine such as the M139 with a turbo and OPF/GPF and modern fuels, I personally would be inclined towards the 229.52.
That’s not to say 229.5 is irrelevant, it will still work fine, just that the additive package probably isn’t as up to date as say 229.52.
The overwhelming factor that makes the difference, is regular oil changes. However complex the additive package, regular oil changes will out perform any old additive package.
Looks like we have Castrol EDGE 0W-20 available now off the shelf that meets the MB- 229.71 spec however I'm hesitant to run a 0W-20 and would prefer to run a 5W-30 for our climate.
Read lots of oil reviews but it all seems very focused on fuel economy rather than what is actually the best to use for the engine. I mean you don't exactly buy one of these cars for the fuel economy do you but you sure do want the engine to last.
Mobil 1 make a 5W-30 that meets all the older MB 229.52 oil spec and I suspect they are about to release something new as this was being sold off cheap, like half price.
Anyone seen anything better to use ? The Genuine Mercedes oil is probably the likes of Castrol anyway.
Read lots of oil reviews but it all seems very focused on fuel economy rather than what is actually the best to use for the engine. I mean you don't exactly buy one of these cars for the fuel economy do you but you sure do want the engine to last.
Mobil 1 make a 5W-30 that meets all the older MB 229.52 oil spec and I suspect they are about to release something new as this was being sold off cheap, like half price.
Anyone seen anything better to use ? The Genuine Mercedes oil is probably the likes of Castrol anyway.
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Top half of thumbnail looks like he's holding a hair dryer. His facial expression fits so well too.LSPI may be a factor why you should choose the latest formulation of 229.71 for your turbocharged GDI engine
Despite this being a sponsored video, it’s clearly an issue if it’s specified in the latest API SP validations.
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Quite an informative video. Looks like running 229.71 as a way to prevent hot spots makes sense, and I wouldn't hesitate in colder climates. However I fear running 0W-20 in a 35C+ ambient, even more so if you drive aggressively, could possibly do more harm than good in the long run.
End of April I'm taking it in for my B service and I think I'll stick to my AMG 0W-40 (229.5) which I've been running for the past year, with an extra (unofficial at my request) oil change that I did sometime in October, which means I've got my oil changed every 6 months or a maximum of 5k miles.
End of April I'm taking it in for my B service and I think I'll stick to my AMG 0W-40 (229.5) which I've been running for the past year, with an extra (unofficial at my request) oil change that I did sometime in October, which means I've got my oil changed every 6 months or a maximum of 5k miles.
The A45S should not suffer from "Hot Spots" in the combustion chamber its both Direct and Port injection which is the way to go but obviously more expensive.
hello all, quick question, just dropped my a45 2016 to a indie, first time with him, service B0 which is b and transimission, question is, do they know to use like the best oils considering its an amg? i hope they don't put some random general stuff in there, do they know to use the top quality stuff or should i call and be like "what you using"
I would be surprised if they used the MB oil recommended. Leaving aside the debate around servicing at an independent or MB garage, I personally would buy the oil for them and ask to be there when they poured it in, which is highly impractical. But seeing the invoice you originally posted of the work your car had done before you bought it, I would be especially careful to maintain it in prime condition.
I called him, he said he has given the reg plate to Mercedes and awaiting parts to whatever they give him.. surely merc give him the correct stuff, lets pray
EDIT: he's apparently some sort of wizard around my town, he worked at Mercedes for 18 years and now has his own garage all approved stuff using OE and genuine parts if requested, and he updates the digital service record, so im going to breathe a little and say its fine
EDIT: he's apparently some sort of wizard around my town, he worked at Mercedes for 18 years and now has his own garage all approved stuff using OE and genuine parts if requested, and he updates the digital service record, so im going to breathe a little and say its fine
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Hi guys, sorry if this has been posted elsewhere, but I have a 2022 CLA 45s with 4600 miles on currently. I checked the Engine Oil level on the drivers screen randomly and I see that it is half way between Min and Max, and I would like it to be at Max for peace of mind. I brought this Engine Oil from a local Mercedes branch and wanted to make sure that this is the correct Oil they have given me? I see there is AMG oil but there's regular Oil too when looking online. Are normal modern Mercedes Benz cars and modern AMG's share same oil now? I have attached photo to what I brought.
Also, please help me. I have never really topped any sort of Oil up before so I would like some guidance. Since it says half way between min and max do I top up Half a Litre? (Half the bottle as whole bottle is 1L) Do I do this in the morning when the engine is cold ? Or should it be warm?. Also, do I have to drive it a certain amount of miles to let it circulate? Or could I put my foot down when driving it to help it circulate quicker? Mercedes told me there should be a dip stick for the 45s but I cannot find. Is this true? But most importantly I would like to know if this is the correct Oil I should be putting in the M139 Engine for the 45s. Sorry for the long post, thank you.
Engine Oil: SAE 5W-40 MB 229.5
![Image]()
Also, please help me. I have never really topped any sort of Oil up before so I would like some guidance. Since it says half way between min and max do I top up Half a Litre? (Half the bottle as whole bottle is 1L) Do I do this in the morning when the engine is cold ? Or should it be warm?. Also, do I have to drive it a certain amount of miles to let it circulate? Or could I put my foot down when driving it to help it circulate quicker? Mercedes told me there should be a dip stick for the 45s but I cannot find. Is this true? But most importantly I would like to know if this is the correct Oil I should be putting in the M139 Engine for the 45s. Sorry for the long post, thank you.
Engine Oil: SAE 5W-40 MB 229.5
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20 Posts
Hope this is the right place to ask...
Service A made with a Mercedes Benz approved motor oil (factory approved, no third party brand) 0W-40.
Service B made with a Mobil 1 ESP 5W-30 motor oil.
Anything I should be worried about the used motor oils above
? Is there "the best" for this engine?
Thanks...
![Image]()
Service A made with a Mercedes Benz approved motor oil (factory approved, no third party brand) 0W-40.
Service B made with a Mobil 1 ESP 5W-30 motor oil.
Anything I should be worried about the used motor oils above
? Is there "the best" for this engine?
Thanks...
Tis correct
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39 Posts
Thanks for the tip, I sent him a PM. I'll post the answer here so you know too.
How about you guys with the oil in the A45s? AMG only says 0W20 229.71. Isn't it better to drive the 229.51, or is that not possible with 45s? Mine has software on it and 500hp, isn't it actually better to drive 229.51?
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39 Posts
i come from bmw m2cs with stage 3 and it's my first amg so i don't have much experience. I've only seen that in Germany AMG says that only the 0W20 229.71 is approved for the 45s. But I don't think it's so good to drive oil that thin?
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39 Posts
i come from bmw m2cs with stage 3 and it's my first amg so i don't have much experience. I've only seen that in Germany AMG says that only the 0W20 229.71 is approved for the 45s. But I don't think it's so good to drive oil that thin?
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9,113 Posts
Officially you are supposed to use 229.71.
Previously 229.52 was also accepted.
0W-20 is rated to 100 degC engine temp, which should be fine for an ambient temp of say between 30-35 degC. If you live in a hotter climate than that, and are using WOT a lot, then you should email AMG
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