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Engine oil for C400

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Old 07-18-2015, 11:08 AM
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Engine oil for C400

It's pretty hard to find information about engine oil information for the C400 so hopefully someone knows the information.

Does anyone know the oil brand used at the dealership? Is it MB's own formulation that's good for 10k miles interval oil change? Or is it something off the self like Mobil1 full syn or Castrol Edge full syn? I know the oil has to conform to MB 229.5 spec.

The reason why I ask is because I recently had my 10k service perform at a local indy shop that used Castrol Edge full syn 5W-40 and they did the 10k service for $140. Meanwhile MB wanted $260 for the same service. So naturally I chose the indy shop. They are a good and reputable shop. However it didn't occur to me until AFTER the service and I saw those oil change interval sticker reminder that next service should be 6 months or 5k miles later. If

So this is a QA on bobistheoilguy website about Castrol Edge:
Do your EDGE products support extended drain intervals (beyond 3,000 miles), per the vehicle manufacturer’s specifications or oil life monitor? Or do you recommend that all of your oils are changed within a strict 3,000 mile interval? Do you support even longer drain intervals with your oils (e.g. 10k miles), provided it is within the engine manufacturer’s specifications?
Our EDGE products have shown outstanding engine performance in all the testing that we have done with them. However, all cars are different and the type of driving that each person does (normal, stop and go, severe) is different. Because of these differences in cars and driving conditions, Castrol recommends that you follow the recommendations of your car owner’s manual for the type of driving (normal or severe) that the vehicle is being operated.
Doesn't really answer the question but it sounds like the engine oil should support the 10k miles interval change, though not positive. Driving habit - 80% highway, 20% local/stop &go.
Old 07-20-2015, 12:09 AM
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Use any of these at 10K miles interval. Viscosity range must be appropriate for local ambient or 0W-40 for all.

https://bevo.mercedes-benz.com/bevolisten/229.5_en.html

On no account change the original oil charge early. Leave in for full 10K to ensure break in.
Old 07-20-2015, 04:05 PM
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Originally Posted by Glyn M Ruck
Use any of these at 10K miles interval. Viscosity range must be appropriate for local ambient or 0W-40 for all.

https://bevo.mercedes-benz.com/bevolisten/229.5_en.html

On no account change the original oil charge early. Leave in for full 10K to ensure break in.
Yep, that's same website where I found various 229.5 oil. I did call the shop and they told me they used Castrol Edge 5W-40 A3/B4, which is listed.

As for your second statement, i'm assuming you mean don't change your original oil early, leave in for full 10k before first oil change?

Thanks for the response!
Old 07-20-2015, 05:57 PM
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Originally Posted by dawei213
Yep, that's same website where I found various 229.5 oil. I did call the shop and they told me they used Castrol Edge 5W-40 A3/B4, which is listed.

As for your second statement, i'm assuming you mean don't change your original oil early, leave in for full 10k before first oil change?

Thanks for the response!
Yes ~ leave the running in/break in oil for full first 10K
Old Yesterday, 07:07 PM
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2009 C350
Originally Posted by Glyn M Ruck
Yes ~ leave the running in/break in oil for full first 10K
Looking at a C400 today and the GM tech put in 5W30 DEXOS SYNTHETIC.

I don't see this as MB approved. I presume this could potentially damage engine or only after extensive use?

Old Yesterday, 07:22 PM
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Originally Posted by Nicholi2007
Looking at a C400 today and the GM tech put in 5W30 DEXOS SYNTHETIC.

I don't see this as MB approved. I presume this could potentially damage engine or only after extensive use?
If you are worried then change the oil again, I guess better safe than sorry.
Old Yesterday, 08:21 PM
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Originally Posted by W205C43PFL
If you are worried then change the oil again, I guess better safe than sorry.
I don't play Russian roulette when it comes to engines. I told them I won't buy the car.
They can fix their mistake or lose the sale. Who knows what's in that crap.
I had a Mitsubishi dealer use the wrong viscosity oil on another car I recently looked at.

Too many yahoo techs.

Last edited by Nicholi2007; Yesterday at 08:35 PM.
Old Yesterday, 08:49 PM
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Originally Posted by Nicholi2007
I don't play Russian roulette when it comes to engines. I told them I won't buy the car.
They can fix their mistake or lose the sale. Who knows what's in that crap.
I had a Mitsubishi dealer use the wrong viscosity oil on another car I recently looked at.

Too many yahoo techs.
I think that is a wise decision, just walk if in doubt.
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