5W-50 in tuned/FBO M157........Good or bad idea?
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Junior Member
Joined: Feb 2025
Posts: 71
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From: Central TX
E63
5W-50 in tuned/FBO M157........Good or bad idea?
As the title states would it be a good or bad idea to run 5w50 instead of the approved MB 0W40/5W40 in my E63?
I have a 2012 E63 that's tuned by Eurocharged (Stage 2/E47/trans tune), Downpipe with bridge pipe upgraded, Methanol, Intake, BOV.
I occasionally take the car to the strip and down in Mexico. I've looked and looked for answers but most just say use MB approved oil, my thing is MB approved oil is suited for stock cars if I'm not mistaken.
Talking with a buddy of mine that has a boosted Camaro states that he uses 10w50 in his setup because of the additional stress the motor is seeing so the thicker oil helps. This got me thinking with my car since it's producing well over the stock numbers that MB made it to have would it be better/smarter to run a thicker oil like 5w50? Most 5w50 oil that I see are high in zinc, that would be a plus right? Main companies that I've looked at were AMSOIL and Schaeffer's, specifically AMSOIL Signature Series 5W-50 and Schaeffer's Supreme 9000 Full Synthetic Racing Oil 5W-50
Just curious on your thoughts and if I'm just looking too deep into it and to just do it or stick with what's recommended
Btw Im located in Central TX so recently we see all kinds of different temps throughout the year.
I have a 2012 E63 that's tuned by Eurocharged (Stage 2/E47/trans tune), Downpipe with bridge pipe upgraded, Methanol, Intake, BOV.
I occasionally take the car to the strip and down in Mexico. I've looked and looked for answers but most just say use MB approved oil, my thing is MB approved oil is suited for stock cars if I'm not mistaken.
Talking with a buddy of mine that has a boosted Camaro states that he uses 10w50 in his setup because of the additional stress the motor is seeing so the thicker oil helps. This got me thinking with my car since it's producing well over the stock numbers that MB made it to have would it be better/smarter to run a thicker oil like 5w50? Most 5w50 oil that I see are high in zinc, that would be a plus right? Main companies that I've looked at were AMSOIL and Schaeffer's, specifically AMSOIL Signature Series 5W-50 and Schaeffer's Supreme 9000 Full Synthetic Racing Oil 5W-50
Just curious on your thoughts and if I'm just looking too deep into it and to just do it or stick with what's recommended
Btw Im located in Central TX so recently we see all kinds of different temps throughout the year.
Out Of Control!!
Joined: Jun 2004
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2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
https://mbworld.org/forums/w212-amg/...ml#post9066300
https://mbworld.org/forums/w212-amg/...ml#post9117593
https://mbworld.org/forums/w212-amg/...ispreloading=1
https://mbworld.org/forums/w212-amg/...ml#post8695594
https://mbworld.org/forums/w212-amg/...ml#post9117593
https://mbworld.org/forums/w212-amg/...ispreloading=1
https://mbworld.org/forums/w212-amg/...ml#post8695594
Last edited by PeterUbers; Feb 26, 2025 at 11:50 PM.
Out Of Control!!
Joined: Jun 2004
Posts: 13,799
Likes: 3,229
2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
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c350 coupe
if you have the knowledge to build such a powerhouse then you surely have the answer but,
The choice of oil viscosity depends heavily on the environmental temperature and the engine's operating conditions. Here's a general guide:
The choice of oil viscosity depends heavily on the environmental temperature and the engine's operating conditions. Here's a general guide:
- Cold Climates:
- Oils with lower viscosity ratings, such as 0W-20 or 5W-30, are ideal for cold environments. These oils flow more easily at low temperatures, ensuring proper lubrication during cold starts.
- Moderate Climates:
- In regions with mild temperatures, oils like 10W-30 or 10W-40 are commonly used. They provide a good balance between cold start performance and high-temperature protection.
- Hot Climates:
- For hotter environments, higher viscosity oils such as 15W-40 or 20W-50 are preferred. These oils maintain their protective film at elevated temperatures, preventing wear and breakdown.
- Performance Engines:
- Racing or high-performance engines often use oils like 10W-50 or 15W-50, which are designed to handle extreme heat and stress while maintaining viscosity.
- Synthetic Oils:
- Synthetic oils are versatile and can perform well across a wide range of temperatures. They are often recommended for modern engines due to their stability and efficiency.
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2015 C400 4MATIC Palladium Silver Metallic
I'm switching to this once my stash of Castrol 0w40 runs out.
https://www.advlubrication.com/colle...41318128910529
https://www.advlubrication.com/colle...41318128910529
