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#4645144 - 01/24/18 04:08 PM Which Redline oil for BMW M240i
Marcozi Offline


Registered: 05/04/17
Posts: 2
Loc: VA
I own a 2018 BMW M240i. I changed the oil and filter at 1200 miles with LiquiMoly 5W30. I'll be doing some track time at Virginia International Raceway in late March. I'd like to switch to Redline oil. Now, I did ask Redline about which oil is recommended. The response: 5W20. BUT, in all locations, except the US, the recommended oil is a 5W30. In the US the recommended oil is 0W20. Why? Mileage. So, should I use Redline 5W20 or 5w30?

Thanks!

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#4645148 - 01/24/18 04:10 PM Re: Which Redline oil for BMW M240i [Re: Marcozi]
rooflessVW Offline


Registered: 12/24/11
Posts: 4046
Loc: North Carolina
I would absolutely use the 5W-30 for track use, maybe even stepping up to their 0W or 5W-40.
_________________________
"Zed's dead baby, Zed's dead."

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#4645156 - 01/24/18 04:20 PM Re: Which Redline oil for BMW M240i [Re: Marcozi]
oil_film_movies Offline


Registered: 06/13/16
Posts: 2559
Loc: MN
Originally Posted By: Marcozi
I own a 2018 BMW M240i. .... So, should I use Redline 5W20 or 5w30?

That Redline 5w20 is really a "30 weight" in the critical HTHS parameter you need to know about. Forget kv100, which is the old-fashioned definition for a 20-weight, occuring at low shear rates. Racing especially is concerned with high temperature, high shear HTHS parameters.
(Why? Its due to all the POE Redline uses in their oils; not affected by HTHS conditions as much as PAO or GroupIII oils.)
Conclusion: a 5w20 Redline is perfect here.
https://www.redlineoil.com/Content/files/tech/5W20_MO_PROD_INFO.pdf

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#4645164 - 01/24/18 04:26 PM Re: Which Redline oil for BMW M240i [Re: Marcozi]
oil_film_movies Offline


Registered: 06/13/16
Posts: 2559
Loc: MN
Originally Posted By: Marcozi
In the US the recommended oil is 0W20.
True, LL-14FE 0w20, with an HTHS=2.7 is what BMW says can be used in a 240i.
In comparison, Redline 5w20 has HTHS=3.0, a ten percent boost, which increases high temperature oil film protection in racing. So 5w20 is the answer.
Actually, one more answer I'd recommend: Go to BMW TwinPower 0w30 HTHS=3.0 oil for racing. Either oil, Redline 5w20 or BMW-branded 0w30, you'll have about the same high temperature, high speed protection. The BMW oil is a PAO/GroupIII oil, while Redline is POE+notSure(?) oil.

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#4645337 - 01/24/18 07:43 PM Re: Which Redline oil for BMW M240i [Re: oil_film_movies]
Garak Offline


Registered: 12/05/09
Posts: 24574
Loc: Regina, Saskatchewan, Canada
I believe Red Line has a very, very significant percentage of PAO, likely exceeding the percentage of POE. I'm not saying Red Line is low on esters, particularly compared to any competitor on the market, but while esters are their selling point, it doesn't seem they're the primary component in their base stock.
_________________________
Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515

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#4645370 - 01/24/18 08:15 PM Re: Which Redline oil for BMW M240i [Re: Garak]
oil_film_movies Offline


Registered: 06/13/16
Posts: 2559
Loc: MN
Originally Posted By: Garak
I believe Red Line has a very, very significant percentage of PAO, likely exceeding the percentage of POE. I'm not saying Red Line is low on esters, particularly compared to any competitor on the market, but while esters are their selling point, it doesn't seem they're the primary component in their base stock.
I always thought POE gives Redline a high HTHS/KV100 ratio. Is that not true?

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#4645439 - 01/24/18 09:23 PM Re: Which Redline oil for BMW M240i [Re: Marcozi]
1JZ_E46 Offline


Registered: 04/04/16
Posts: 1225
Loc: Oregon
Id run the 5W-30. Pretty sure that engine can run LL-01 which is >3.5 HTHS. So the 5W-30 will be a good choice for high temperatures and loads in that engine. Nice car.
_________________________
2007 BMW X5 4.8i, 105K: Castrol EDGE 0W-40, Mann
2012 Mini Cooper, 45K: Castrol EDGE 0W-30, Mann

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#4645493 - 01/24/18 10:43 PM Re: Which Redline oil for BMW M240i [Re: oil_film_movies]
Garak Offline


Registered: 12/05/09
Posts: 24574
Loc: Regina, Saskatchewan, Canada
Originally Posted By: oil_film_movies
I always thought POE gives Redline a high HTHS/KV100 ratio. Is that not true?

Oh, that's certainly possible; one of the formulators here would be better equipped to answer that. I wasn't disputing that possibility, at all. I was just pointing out that we do have to be a little cautious when we talk about base stocks, given that there are new users here and casual readers that read something here with no context and then parrot it elsewhere as if it were gospel.
_________________________
Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515

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#4645534 - 01/25/18 12:05 AM Re: Which Redline oil for BMW M240i [Re: Marcozi]
OneEyeJack Offline


Registered: 09/14/10
Posts: 7479
Loc: S California
Call Red Line and speak to Dave the customer support guy. He's been there a long time and can help you. He's not just a talking head that reads from a script but more of a tech guy. He is also a BMW fanboy.

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#4645543 - 01/25/18 12:18 AM Re: Which Redline oil for BMW M240i [Re: Marcozi]
oldhp Online   content


Registered: 06/28/12
Posts: 1623
Loc: USA
+1 on Dave knowing his stuff. Talked to him numerous times.
_________________________


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#4645550 - 01/25/18 12:57 AM Re: Which Redline oil for BMW M240i [Re: Marcozi]
burla Offline


Registered: 11/07/16
Posts: 255
Loc: sonoma
Different weights have differing amount of esters, no way would it even be 50% esters compared to the pao. The US gov't has manu's scared to recommend anything but 20 weight most of the time thanks to the teeth in CAFE standards, it is your equipment, run what you want. No the tolerances are such that 30 weight will damage a car. If you like, try using both and seeing the engine temps. In another forum we have 80% of the guys running 30 weight in Hemi's which manu wants 20 weight, the only noticeable difference has been like 1 or 2 PSI in oil pressure, and much smoother running engines. No temp increases either, but like I said if you are worry invest in a 20 weight run and check your temps/pressures.

However, back to your question, the 10w30 actually has zero Vii's, so ditch both of your choices and go with that imo. If you go 20 weight then go 5w20 redline, that as well zero Vii's. The other choices even the 5w30 has some vii's. If you are racing, why have an oil with vii's if you don't need them for some other reason like cold flow? base oil is better at lubricating then vii's at operating temps. ebay has 10w30 on sale for 9.97 a qrt, I bought 5 cases from the guy a racing vendor. good day

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