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Old 07-18-2012, 02:40 PM   #1
SJP
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15w-40 oil in 325ci ?? WDF?

went to the bmw dealership and they gave me this oil for my 325ci. Usually run 5w30 from them but this time they gave me 15w40. anyone ever use it?
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Old 07-18-2012, 02:41 PM   #2
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Uh... you shouldn't have left until you received the proper oil.
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Old 07-18-2012, 02:44 PM   #3
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Seems like an error. You'll get away in the summer time but since you're in Seattle which gets pretty cold, 15W-40 is too viscous for winter use, and you'll likely cause engine damage on cold starts... So long story short, not a good idea..
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Old 07-18-2012, 02:48 PM   #4
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Thanks guys, appreciate it. That answered my question, so going to return and get 5w30.
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Old 07-18-2012, 03:07 PM   #5
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I believe I'd read of some new Castrols getting LL-01 approval.

OP, you picked up bottles of the stuff? Look to see if it has LL-01 on it...photo of bottle.

Seems wrong, because I don't think there's any 10w/X oil approved, but maybe bmw is using this for high mileage/older cars now...or maybe you need glasses or typing lessons!

In any case, please find out what the story is on this oil and get back to us.

FYI, my e36 hated 15/40 and I couldn't wait to put the 20/50 in it for 9 months of the year! Then 20/50 became nearly impossible for me to find, so lived with 15/40 all year round...but that was also dino oil.

More info please and let's, for the moment, suspend judgement just in case!
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Old 07-18-2012, 03:33 PM   #6
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Old 07-18-2012, 03:57 PM   #7
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I used 10/40 castrol, LL-01 (or was it 5/40?). Will switch to 0-30 in the winter
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Old 07-18-2012, 04:06 PM   #8
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Yea, I went by my global dealer in Atlanta and I saw 15w40 ... I was like wdf... I was wondering y has Bmw come w 15w40???

SUV? NEW F30"s?
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Old 07-18-2012, 04:20 PM   #9
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Old 07-18-2012, 04:49 PM   #10
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The people-more-knowledgeable-than-me on bobistheoilguy.com say that if one were to use a non-synthetic in a BMW, 10w-40 or 15w-40 would be it. The HT/HS of these oils are >3.5, the same minimum as ACEA A3/BMW LL-01. They are very tough oils capable of long oil change intervals (7,500+ miles). Just not as long as a fully sunthetic BMW LL-01, nor do they have the cold weather capabilities of the full synthetic. 10w-40 and 15w-40 were the primary "summer" oils for most BMWs before they started suggesting synthetics in the late 1990s and before BMW LL-01 came out in 2001. That's probably why BMW still sells BMW branded 15w-40 in the dealerships and has for decades.

My 1996 E36 lists 10w-40 and 15w-40 as the preferred oils in most above-freezing temps. I've used both for years and they are just fine (even have done a UOA). If I didn't live in MN I'd just use 10w-40 or 15w-40 year-round. ** Disclaimer (as required on all oil threads as they get so hot) ** Yes it's not a M54, and no I'm not suggesting it's the preferred or ideal oil for the M54! Just that there are legit reasons that they sell it.

I think Porsche also recommended 15w-40 until not too long ago.

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Old 07-18-2012, 10:09 PM   #11
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Turns out he grabbed the wrong oil. 15w40 is for older model vehicles he said. Got 5w30 so I'm good now.
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Old 06-06-2013, 08:01 AM   #12
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Yea, I went by my global dealer in Atlanta and I saw 15w40 ... I was like wdf... I was wondering y has Bmw come w 15w40???

SUV? NEW F30"s?
the 15 w40 dino is the only oil that meets all the ratings for european cars truthfully
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Old 06-07-2013, 07:26 AM   #13
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Turns out he grabbed the wrong oil. 15w40 is for older model vehicles he said. Got 5w30 so I'm good now.
Which 5W30?
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Old 06-07-2013, 07:27 AM   #14
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I used 10/40 castrol, LL-01 (or was it 5/40?). Will switch to 0-30 in the winter
Not M1 0W30 I hope?
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Old 06-07-2013, 08:04 AM   #15
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is it okay to run 15w-40 Delo in my M54 during the summer or possible year round? The motor gets real hot so im thinking it would be better
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Old 06-07-2013, 08:32 AM   #16
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is it okay to run 15w-40 Delo in my M54 during the summer or possible year round? The motor gets real hot so im thinking it would be better
You motor runs at the same temperature as everyone elses. That is controlled by the thermostat, not the weather. Run LL-01 spec oil only. No exceptions.
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Old 06-07-2013, 10:54 AM   #17
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On this thread by mistake, there is so much misinformation on this thread I can't even begin. BMW oil is true synthetic molecule, most US synthetics are not, they are hydrocracked (HC) oils, crude based - super refined, SAE allows a politically loose term for the word synthetic. These HC oils have no zinc or detergents, and because EPA defines that oil stated must be same as initial MPG test, why do u think big auto guys state such a a lightweight oil?? A 5-30 oil takes a lot of polymers to keep stable, polymers don't protect your engine, I'm loosing patience here, unless you use a true synthetic Oil, the weights are irrelevent, get off the crack and never use anything less than 10W, look up SAE temperature flows, get off these forums, Seek the truth and knowledge, your VANOS and PVC system will thank you (no floating black flakes).
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Old 06-07-2013, 11:06 AM   #18
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On this thread by mistake, there is so much misinformation on this thread I can't even begin. BMW oil is true synthetic molecule, most US synthetics are not, they are hydrocracked (HC) oils, crude based - super refined, SAE allows a politically loose term for the word synthetic. These HC oils have no zinc or detergents, and because EPA defines that oil stated must be same as initial MPG test, why do u think big auto guys state such a a lightweight oil?? A 5-30 oil takes a lot of polymers to keep stable, polymers don't protect your engine, I'm loosing patience here, unless you use a true synthetic Oil, the weights are irrelevent, get off the crack and never use anything less than 10W, look up SAE temperature flows, get off these forums, Seek the truth and knowledge, your VANOS and PVC system will thank you (no floating black flakes).
...so the Delo is okay?
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Old 06-07-2013, 12:38 PM   #19
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On this thread by mistake, there is so much misinformation on this thread I can't even begin. BMW oil is true synthetic molecule, most US synthetics are not, they are hydrocracked (HC) oils, crude based - super refined, SAE allows a politically loose term for the word synthetic. These HC oils have no zinc or detergents, and because EPA defines that oil stated must be same as initial MPG test, why do u think big auto guys state such a a lightweight oil?? A 5-30 oil takes a lot of polymers to keep stable, polymers don't protect your engine, I'm loosing patience here, unless you use a true synthetic Oil, the weights are irrelevent, get off the crack and never use anything less than 10W, look up SAE temperature flows, get off these forums, Seek the truth and knowledge, your VANOS and PVC system will thank you (no floating black flakes).
I'm not convinced hydrocracking (breaking down larger molecules to smaller ones) is so much worse than synthesizing (building up smaller molecules to larger ones). It's the additives that are much more important. That is to say, I'm not convinced that Group III is a whole lot worse than Group IV. I do believe Group V base stocks to be superior, but again, the additives make a big difference

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Old 06-07-2013, 12:43 PM   #20
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...so the Delo is okay?
If it does not say BMW LL-01 Approved, do not use it. It's pretty simple.

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