[intl440]

Hi all, looking to get my 440i tuned with MHD for logging and the ability to run sport cooling mode (112C engine oil seems too hot for long-term reliability of the plastics).

I am also aware that many choose to run thicker oils like 5W40 and 5W30 - I intend to follow suit. However, when using a thicker oil such as 5W40 in combination with sport cooling, will I risk not getting enough lubrication to my engine?

Besides efficiency and MPG, BMW's choice to use 0W20 and a high temp target might also reflect the tight clearances within the B58.

Safe? Or not? I think I'm loosing my mind...

[e30 4 life!]

Originally Posted by intl440

I think I'm loosing my mind...

[lpaulodt]

I’ve been running Motul xcess gen2 5w40 all summer long. When I changed after 3 track days and around 7k km, I haven’t seen anything unusual, inspected the filter too. Oil consumption less than 0,5L, measuring how much went out.

I’m running MHD stage 2 E30 and stage 2+ E40 sometimes on the track. Both goes well, but I noticed Stage 2 E30 it’s more track friendly, charge air temps keep a bit cooler, a bit less timing corrections throughout the day and it’s easier to put power down on corner exit.

I run sport cooling mode and the inter cooler option on MHD while on track only. On the street I like to have my oil running hotter quicker to burn any crap out of it, specially on short trips.

Here’s a log how the temps developed throughout a 20 min stint:

https://datazap.me/u/lpaulodt/geller...a=6-7-17-18-21

[intl440]

Originally Posted by lpaulodt

I’ve been running Motul xcess gen2 5w40 all summer long. When I changed after 3 track days and around 7k km, I haven’t seen anything unusual, inspected the filter too. Oil consumption less than 0,5L, measuring how much went out.

I’m running MHD stage 2 E30 and stage 2+ E40 sometimes on the track. Both goes well, but I noticed Stage 2 E30 it’s more track friendly, charge air temps keep a bit cooler, a bit less timing corrections throughout the day and it’s easier to put power down on corner exit.

I run sport cooling mode and the inter cooler option on MHD while on track only. On the street I like to have my oil running hotter quicker to burn any crap out of it, specially on short trips.

Here’s a log how the temps developed throughout a 20 min stint:

https://datazap.me/u/lpaulodt/geller...a=6-7-17-18-21

Thank you for the insight! Interesting you like running the oil hotter. You’re not worried about longer term heat exposure to the plastic parts?

[F32Fleet]

Originally Posted by intl440

Hi all, looking to get my 440i tuned with MHD for logging and the ability to run sport cooling mode (112C engine oil seems too hot for long-term reliability of the plastics).

I am also aware that many choose to run thicker oils like 5W40 and 5W30 - I intend to follow suit. However, when using a thicker oil such as 5W40 in combination with sport cooling, will I risk not getting enough lubrication to my engine?

Besides efficiency and MPG, BMW's choice to use 0W20 and a high temp target might also reflect the tight clearances within the B58.

Safe? Or not? I think I'm loosing my mind...

Hot engines are efficient and happy engines. An increase in viscosity to 5w40 won't hurt anything.

[Skyhigh]

The engine is not made of plastic. The plastic components are made of material well qualified for high temperatures. I would not run sport cooling on day-to-day basis. There is simply no need to and that comes with disadvantages too (Car/engine manufacturers do know what they are doing, believe it or not...). Those settings are purely intended for tracking, where they of course make sense.
On a different note, I personally do not support the idea of thicker oils, unless there is a specific reason for going thicker. I am sticking with 0W30 which has been used on my car from day 1. If you don't have cold winters or cold winter trips - 5W30 would be an excellent choice too.

[n55david]

You really shouldn't run max cooling unless you're tracking the car. On the street you want the oil temps up. There are way more sources of heat that will affect the plastics more than oil..

[F32Fleet]

Originally Posted by Skyhigh

The engine is not made of plastic. The plastic components are made of material well qualified for high temperatures. I would not run sport cooling on day-to-day basis. There is simply no need to and that comes with disadvantages too (Car/engine manufacturers do know what they are doing, believe it or not...). Those settings are purely intended for tracking, where they of course make sense.
On a different note, I personally do not support the idea of thicker oils, unless there is a specific reason for going thicker. I am sticking with 0W30 which has been used on my car from day 1. If you don't have cold winters or cold winter trips - 5W30 would be an excellent choice too.

LOL. You must be new to BMW.

[blacksapphire440i]

Originally Posted by lpaulodt

I’ve been running Motul xcess gen2 5w40 all summer long. When I changed after 3 track days and around 7k km, I haven’t seen anything unusual, inspected the filter too. Oil consumption less than 0,5L, measuring how much went out.

I’m running MHD stage 2 E30 and stage 2+ E40 sometimes on the track. Both goes well, but I noticed Stage 2 E30 it’s more track friendly, charge air temps keep a bit cooler, a bit less timing corrections throughout the day and it’s easier to put power down on corner exit.

I run sport cooling mode and the inter cooler option on MHD while on track only. On the street I like to have my oil running hotter quicker to burn any crap out of it, specially on short trips.

Here’s a log how the temps developed throughout a 20 min stint:

https://datazap.me/u/lpaulodt/geller...a=6-7-17-18-21

Fantastic results from this oil. I've been running it on my DAW v2.5+ / DS2 setup and the car has been loving it in both SoCal summers and winters.

[SpencerC_6MT]

Worth noting that BMW software is very clever, and adjusts temps automatically based on outside temperature and engine load. I use Bimmerlink to track temps occasionally, and I've observed that the motor keeps oil and coolant around 110 C in normal driving. As soon as you get on it though, temps rapidly drop to about 100 C. It's also more sensitive in hotter climates, as the temperature drop was activated by relatively mild throttle application when I was climbing the hills out of Palm Springs a few weeks ago.

[JayPaulH]

My most used BMW is a 2011 F25 currently at 345k miles. I use Castrol 10W30 and have been for the last 8yrs with no oil consumption between 5k mile oil changes. The car is always warmed up before driving - winter and summer. I live in MN.

[Skyhigh]

Originally Posted by lpaulodt

I’ve been running Motul xcess gen2 5w40 all summer long. When I changed after 3 track days and around 7k km, I haven’t seen anything unusual, inspected the filter too. Oil consumption less than 0,5L, measuring how much went out.

I’m running MHD stage 2 E30 and stage 2+ E40 sometimes on the track. Both goes well, but I noticed Stage 2 E30 it’s more track friendly, charge air temps keep a bit cooler, a bit less timing corrections throughout the day and it’s easier to put power down on corner exit.

I run sport cooling mode and the inter cooler option on MHD while on track only. On the street I like to have my oil running hotter quicker to burn any crap out of it, specially on short trips.

Here’s a log how the temps developed throughout a 20 min stint:

https://datazap.me/u/lpaulodt/geller...a=6-7-17-18-21

Extremely useful review/feedback and log! Appreciated!

In your experience how much E is indeed sufficient for those maps (St 2 E30 and St 2+ E40)? Do you go above those values or do the maps perform well with indeed 30% / 40% E? Do you mix with E85 or do you use racefuel E?
Just about to experiment with those maps for the first time ever, so any input appreciated.
Also - ever tried the RON 102 map with pump fuel (RON 98) + E?

[lpaulodt]

Originally Posted by Skyhigh

Extremely useful review/feedback and log! Appreciated!

In your experience how much E is indeed sufficient for those maps (St 2 E30 and St 2+ E40)? Do you go above those values or do the maps perform well with indeed 30% / 40% E? Do you mix with E85 or do you use racefuel E?
Just about to experiment with those maps for the first time ever, so any input appreciated.
Also - ever tried the RON 102 map with pump fuel (RON 98) + E?

Hi, I missed this one, sorry for the late answer!

Because I’m with a flex fuel sensor, the map gets interpolated automatically depending on how much E I have. So normally I calculate and try to aim for the target (interpolation 1) for those maps, which is 30 and 40 respectively.
The pro is that we can tank and forget. The con is we can’t overshoot E to complete “clear timing corrections” as a lot of people do. So there’s always a little bit of correction every now and then. I guess that is also a good sign that advanced timing is being used, so there’s prob not much left on the table.

I am using Ethanol straight out of the pump, which varies between ~E76 winter and ~E85 in the summer.

I’ve never used the RON102 map as I have only access to RON98.

Another side note, I noticed that everytime i “in between gas fills” (every month I like to run one or two full tanks of gas only) my logs show quite significant timing corrections, showing how aggressive these maps are for pump gas. That means during these gas fillings I’m babying the car most of the time and let to rip when i feed it back with 🌽!

Cheers

[Fast_Rabbi]

I'm on sport cooling mode for more than a year.
There is no issue at all to keep oil temp around 100°C. BMW's motor run hot just for efficiency and consumption, that's all.
Others brand's car run their oil around 100°C too so it's not a problem at all to use sport mode cooling all year long.