Engine oil difference

lumberman · 08-16-2013, 04:16 AM

My car is at 8000kms, and it reminds me to change engine oil, so I took it to the dealer.

This time they used 0W-40, instead of 5W-30 as recommended, first impression after I get my car back, it felt so much lighter, especially at low speed, is smoother and much more responsive, also the time taken to operating temperature is shorter

I am not sure what this does to engine wear and demage, what do you guys use?

bobblehead · 08-16-2013, 05:51 AM

0w40 is also approved.

I use 0w30 in North America. It's more suited for me, esp. in the winter months.

Orich · 08-21-2013, 07:44 PM

Hi all, I'm not an expert on this subject, but does this video shows that the BMW 0W-30 is better than Castrol 0W-30?

I've always heard that the Castrol 0W-30 is better, but I can see that the BMW oil boils faster, but burns cleaner than the Castrol at the end?

stealth.pilot · 08-21-2013, 08:26 PM

Quote:

Originally Posted by lumberman

My car is at 8000kms, and it reminds me to change engine oil, so I took it to the dealer.

This time they used 0W-40, instead of 5W-30 as recommended, first impression after I get my car back, it felt so much lighter, especially at low speed, is smoother and much more responsive, also the time taken to operating temperature is shorter

I am not sure what this does to engine wear and demage, what do you guys use?

I use 0W-30 Castrol Edge which I think is the best BMW approved oil (my judgement of course others may have different opinions).

I suspect your dealer installed Mobil1 0W-40 which is also a BMW approved oil and highly regarded. I would however choose Mobil1 0W-40 over BMW 5W-30 any day.

These 0W oils are much better because they provide better cold start protection and also faster warm up to operating temperature.

bobblehead · 08-22-2013, 06:15 AM

Here is the approved oil grade list ...

http://f10.m5post.com/forums/showthread.php?t=766056

since Castrol have different variation of their 0W30, I buy only the one that says "Made in Germany" at the back of the bottle and the front says "European Formula".

Do note on the video that the test was using Castrol Edge Professional but does not say it's A5 or A3 ... as A5 is NOT on the approved list. The approved list specify A3

[QUOTE=Orich;14538438]Hi all, I'm not an expert on this subject, but does this video shows that the BMW 0W-30 is better than Castrol 0W-30?

I've always heard that the Castrol 0W-30 is better, but I can see that the BMW oil boils faster, but burns cleaner than the Castrol at the end?

Orich · 08-22-2013, 07:17 PM

Found it

Netwon · 09-11-2013, 08:03 PM

Quote:

Originally Posted by lumberman

My car is at 8000kms, and it reminds me to change engine oil, so I took it to the dealer.

This time they used 0W-40, instead of 5W-30 as recommended, first impression after I get my car back, it felt so much lighter, especially at low speed, is smoother and much more responsive, also the time taken to operating temperature is shorter

I am not sure what this does to engine wear and demage, what do you guys use?

Funny thing is once warmed up 0W-40 is less viscous (heavier) than 5W-30.

M5LA · 11-23-2013, 01:19 PM

Dumb question. I have always let The dealer change my oil. If they have been using BMW 5W-30 oil. When I have add oil (the add oil message pops up), can I add and mix this Castrol 0W-30 with the existing 5W-30 oil? Does it hurt?

lumberman · 11-23-2013, 02:40 PM

I wouldn't mix cross brand oil

thebishman · 11-23-2013, 05:05 PM

Quote:

Originally Posted by M5LA

Dumb question. I have always let The dealer change my oil. If they have been using BMW 5W-30 oil. When I have add oil (the add oil message pops up), can I add and mix this Castrol 0W-30 with the existing 5W-30 oil? Does it hurt?

IMHO it wouldn't hurt at all, and I think that BMW's oil supplier is Castrol anyway.
Bish

M5LA · 11-25-2013, 02:15 PM

I am still confused and unsure. Should I mix oil? Or just the BMW factory oil?

08-16-2013, 04:16 AM	#1
lumberman Private First Class 15 Rep 195 Posts Drives: BMW F10 M5 Join Date: Mar 2005 Location: Macau iTrader: (0)	Engine oil difference My car is at 8000kms, and it reminds me to change engine oil, so I took it to the dealer. This time they used 0W-40, instead of 5W-30 as recommended, first impression after I get my car back, it felt so much lighter, especially at low speed, is smoother and much more responsive, also the time taken to operating temperature is shorter I am not sure what this does to engine wear and demage, what do you guys use?
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08-16-2013, 05:51 AM	#2
bobblehead Brigadier General 256 Rep 4,721 Posts Drives: warp speed Join Date: Aug 2009 Location: Toronto, On iTrader: (0)	0w40 is also approved. I use 0w30 in North America. It's more suited for me, esp. in the winter months.
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08-21-2013, 07:44 PM	#3
Orich Second Lieutenant 36 Rep 228 Posts Drives: 2014 M5 Join Date: Aug 2012 Location: Toronto iTrader: (0)	Hi all, I'm not an expert on this subject, but does this video shows that the BMW 0W-30 is better than Castrol 0W-30? I've always heard that the Castrol 0W-30 is better, but I can see that the BMW oil boils faster, but burns cleaner than the Castrol at the end? __________________ "Speeding is like farting - you have to know when it’s inappropriate." - James May
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08-22-2013, 06:15 AM	#5
bobblehead Brigadier General 256 Rep 4,721 Posts Drives: warp speed Join Date: Aug 2009 Location: Toronto, On iTrader: (0)	Here is the approved oil grade list ... http://f10.m5post.com/forums/showthread.php?t=766056 since Castrol have different variation of their 0W30, I buy only the one that says "Made in Germany" at the back of the bottle and the front says "European Formula". Do note on the video that the test was using Castrol Edge Professional but does not say it's A5 or A3 ... as A5 is NOT on the approved list. The approved list specify A3 [QUOTE=Orich;14538438]Hi all, I'm not an expert on this subject, but does this video shows that the BMW 0W-30 is better than Castrol 0W-30? I've always heard that the Castrol 0W-30 is better, but I can see that the BMW oil boils faster, but burns cleaner than the Castrol at the end? Last edited by bobblehead; 08-22-2013 at 06:24 AM..
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08-22-2013, 07:17 PM	#6
Orich Second Lieutenant 36 Rep 228 Posts Drives: 2014 M5 Join Date: Aug 2012 Location: Toronto iTrader: (0)	Found it Attached Images __________________ "Speeding is like farting - you have to know when it’s inappropriate." - James May
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11-23-2013, 01:19 PM	#8
M5LA Private First Class 8 Rep 102 Posts Drives: 13 F10 M5 Alpine White - sold Join Date: Jul 2013 Location: Los Angeles iTrader: (0)	Dumb question. I have always let The dealer change my oil. If they have been using BMW 5W-30 oil. When I have add oil (the add oil message pops up), can I add and mix this Castrol 0W-30 with the existing 5W-30 oil? Does it hurt?
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11-23-2013, 02:40 PM	#9
lumberman Private First Class 15 Rep 195 Posts Drives: BMW F10 M5 Join Date: Mar 2005 Location: Macau iTrader: (0)	I wouldn't mix cross brand oil
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11-25-2013, 02:15 PM	#11
M5LA Private First Class 8 Rep 102 Posts Drives: 13 F10 M5 Alpine White - sold Join Date: Jul 2013 Location: Los Angeles iTrader: (0)	I am still confused and unsure. Should I mix oil? Or just the BMW factory oil?
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