02-18-2020, 06:43 PM | #67 | |
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02-18-2020, 07:46 PM | #68 | |
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Oil is now just a conveyance for additives, detergents, and stabilizers more than anything. If you're tracking or racing, I can see how a thicker oil would be prudent. But on a daily driver? |
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02-18-2020, 09:14 PM | #69 | |
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Call it an insurance for peace of mind and it saves you money, too lol. |
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02-22-2020, 09:10 PM | #70 |
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I'm curious if anyone has run Oil Pressure readings on the B58 with different viscosities. My first oil change Blackstone diagnostic said the break-in oil was 0-20... I put in 5W40 and not worrying about it. If the temp dips to Sub-Zero temps, it's not going anywhere anyway, lol lowest I would run is 0-30 or 5-30 anyways. That 0-20 came out like water and I only had 1k miles on it.
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02-29-2020, 02:21 AM | #73 |
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It's been rather cold this week. Like 18f and wind it feels super cold. I still have the 5w40 in. Now again today and first last weekend I have a code for the vanos, stuck intake camshaft. It sat outside freezing all day. I ran the vanos test, and it passed all good. It ran fine in limp mode, I cleared codes and it idles smooth and runs great.
So I don't think there's anything actually wrong, but maybe sitting very cold the 5w40 isn't getting enough pressure up there. Which isn't good in any case. Hopefully the weather turns and I can avoid it. Or I will try something lighter. Hopefully that's all it is. I had reservations about running such heavy stuff due to exactly this. |
05-14-2020, 01:34 AM | #76 |
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I've been using Castrol Edge 5w40 but am going to change to Motul 5w40 for the next oil change. BMW says to use 0w20 for fuel economy reasons but I'd rather have my oil not run like water when it's pushed hard.
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05-14-2020, 02:08 AM | #77 |
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Is there any truth to this statement? "as far as I know, BMW says that LL-04 can be a substitute for LL-01 ONLY when your fuel does NOT contain ethanol."
I found this on BITOG. |
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05-14-2020, 09:11 AM | #78 |
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My concern with Rotella is denial of warranty coverage which is why I use LiquiMoly Leichtlauf High Tech 5w40. The last thing I want is a service advisor denying a turbo replacement or engine replacement from cylinder wall scoring with the excuse of "you used non-certified oil which caused X to fail. We're not covering it."
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05-15-2020, 09:55 AM | #81 | |
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05-15-2020, 08:57 PM | #82 | |
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BMW's LL-04 oils may not/have ever been API Sx certified (S for gasoline engines, C for diesel engines). The technical reason I provided is emissions-related. Running diesel oil has the potential to damage your catalytic converter. How much of a risk? Probably low and why a lot of gas cars run it. Last edited by G.Newt; 05-16-2020 at 01:47 AM.. |
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05-15-2020, 10:03 PM | #83 |
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How do you find the LL rating for oil? Will it always say on the bottle?
My car is tuned to stage 1. Right now I'm looking at Castrol EDGE 5W-30 and 5W-40. Are both of these rated LL01? The temperatures here can reach the 40s in the winter. What winter grade should I be using?
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05-15-2020, 11:40 PM | #84 |
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05-17-2020, 07:12 PM | #86 | |
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05-17-2020, 11:55 PM | #87 | |
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05-19-2020, 02:10 PM | #88 | |
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If you Google around, you'll see Blackstone lab reports of BMWs running Rotella T6 5W-40 diesel oil. They're almost all good reports. |
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