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SL-Class (R230) 2003 -- 2012: Discussion on the SL500, SL550, SL600

Mobil 1 Formula M 5W40

 
Old 05-31-2019, 11:10 PM
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Sl500
Mobil 1 Formula M 5W40

Iím looking at the local Mobil1 retailers around zip 14304 and I donít see any stock of this specific grade.
Does it have to be pre-ordered?
Iíll be there next week and I could pickup some if the price is right.
All suggestion are appreciated.
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Old 06-01-2019, 09:47 AM
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2008 SL55AMG
Your best price is to order online with free delivery. That's what's recommended and I use on my '08 SL55 AMG, or you can get the same 5w40 MB branded at the dealer.
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Old 06-01-2019, 10:28 AM
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The specifications for Mobil 1 0W40 are better than the 5W40. I believe It meets the specs for the newest German cars. I've been using it in the SL55 and the Audi A8 for several years.

Gary

Last edited by kittyandgary; 06-01-2019 at 10:32 AM.
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Old 06-01-2019, 11:34 AM
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CURRENT: 2011 SL550, 2010 ML350, FORMER: 2007 CLK550 Cabriolet, 2002 C240, 2001 ML320, 1984 300TD
Here's a full list of approved oils:

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

I find Mobil 1 0w40 European Formula and Castrol Edge 0w40 to be readily available at local auto parts stores and Walmart.
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Old 06-01-2019, 02:53 PM
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Thanks guys,
You are absolutely correct about the 0w40. Even my local Costco got the Castrol in stock and on sale from time to time.
The reason I was looking for the 5w40 Mobil1 was the the fact thatís what was used in the car so far and thatís what my local MB dealer uses as well.
Dealer invoices are $30+ for a litre of this oil while big box down the street charges about the same for the 5 litre jug of 0w40 when on sale.
Will I benefit from 5w? I donít know. Itís the difference worthy the $300 price tag (taxes in) for the oil alone? I donít know that either.
I guess I have the weekend to research the subject some more.
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Old 06-01-2019, 11:53 PM
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2011 SL550
Mobil 1 0W 40 oil

Just purchased a couple 5 qt containers iof this oil from Walmart for $23.50 each. A price ďroll backĒ, reg price is $25.99 per 5 qt jug
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Old 06-02-2019, 07:05 AM
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2003 SL500, 2012 E350 4Matic P2
Also eligible for a rebate from Mobil of $12 per 5 quarts up to 4 per household through Sept 30,19.

Read conditions here Mobil1 rebate.

Bob
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Old 06-11-2019, 12:21 PM
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Originally Posted by MarkCan View Post
Thanks guys, You are absolutely correct about the 0w40. Even my local Costco got the Castrol in stock and on sale from time to time.
The reason I was looking for the 5w40 Mobil1 was the the fact that’s what was used in the car so far and that’s what my local MB dealer uses as well.
Dealer invoices are $30+ for a litre of this oil while big box down the street charges about the same for the 5 litre jug of 0w40 when on sale.
Will I benefit from 5w? I don’t know. It’s the difference worthy the $300 price tag (taxes in) for the oil alone? I don’t know that either.
I guess I have the weekend to research the subject some more.
I saw the same thing in my R230's VMI report - looks like it was a dealer go-to at some point and perhaps anything in current inventory is just leftover stock.

At this stage, the only Mobil 1 product I'd use in a Mercedes is their 0W-40. A 5W (cold viscosity) option will quiet down the valvetrain, but at the cost of reaching critical components less quickly at engine startup.

If you live in a warm climate or store the car for winter in a cold one, 5W-40 is fine. Year round, however, 0W-40 is optimal IMHO.

The aforementioned 0W-40 oils (Mobil 1 and Castrol Edge) are excellent options. A couple 5W-40 oils of comparable quality are Shell Rotella T6 and Liqui Moly Leichtlauf.
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Old 06-11-2019, 02:13 PM
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The Mobil 1 you get at most places is not Formula M, the Mercedes-approved oil. I think using Formula M is more important than the difference between 5W-40 and 0W-40. Very few places (besides dealers) carry Formula M, but you can get it online.
https://www.amazon.com/gp/product/B00HXILF5Q/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 https://www.amazon.com/gp/product/B00HXILF5Q/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
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Old 06-22-2019, 07:20 PM
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Sl500
I couldn't resist.



29 bucks for the 5 quarts jug at the local big box. Yes I'll take two.
And then some other staff from another supplier





I was glad to see all filters and oil in good condition.

It drained 8 liters by opening the oil pan drain and took 8.5l to achieve correct level after refill.
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