12-08-2022, 02:53 PM | #45 | |
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Ok. But I note my 707hp Dodge Challenger Hellcat also had a break in of 1200 miles. As did both my Dodge Challenger Scat Packs (485hp). Are Dodge Hellcat buyers just better drivers and able to come up to speed, literally and figuratively, in 1200 miles with 707hp to master but BMW drivers need that same 1200 miles just to master around 250hp to 380hp? Break in guidelines are about the same from car to car, brand and model. It is not about getting one acclimated to the new car. How can BMW or any car maker know that 1200 miles works for every owner/driver? As for the oil being dirty, part of the break in suggests use more throttle as the miles cross (in this case) 1200 miles. So at some point there's the risk a dirty oil filter will cause a pressure bypass to open and circulate unfiltered oil as the driver dutifully attempts to adhere to the break in guidelines. And there are cold engine starts and operation that could subject the engine to high RPMs cold and the resulting higher oil pressure causes a pressure bypass valve to open. But it all boils down to what does the owner want to do? I'm not willing to risk another person's engine advising him a break in is a waste of time, nonsense, unnecessary. I don't believe that for my cars. Thus I advise one to follow the automaker's recommendation. As with oil the automaker is the only authority on engine break in and like what oil it recommends what break in procedure it recommends should be heeded. To me better safe than sorry. |
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12-08-2022, 03:13 PM | #46 | |
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12-08-2022, 03:21 PM | #47 | ||
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No need for you to leave your comfort zone, proceed as you wish. I understand how deeply ingrained the religion of engine break-in is for many people. |
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12-09-2022, 05:59 AM | #48 | |
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That 1200 mile "break in" is not to give the driver time to become familiar with the vehicle. The driver should be familiar with the vehicle, to the point of being able to operate the vehicle in a safe and law abiding manner the moment he first gets behind the wheel. Custom engine builders have their own engine break in (and oil) preferences. That is understandable. The engine is their engine. But like what the factory calls for my not suit the the custom engine builder likewise what the custom engine builder does may not be what's best for engines the factory builds. And customers... The engine break in -- pretty much everything -- they want/believe they want will be all over the map. My comfort zone regarding break in is based on my time spent working as a journeyman machinist and being intimately aware of how even the most precisely machined (turned, milled, ground, even honed) surfaces still need time to adapt to whatever it is they slide, spin, or roll against. And it is best this happen at a reasonable pace to avoid the risk of damaging these sliding/spinning/rolling surfaces which no amount of further/subsequent break in can undo that damage. |
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12-09-2022, 09:01 AM | #49 | ||
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12-09-2022, 12:25 PM | #50 | |
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12-09-2022, 09:15 PM | #51 |
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Not really. But I want to oil change soon.
My Q is: I dont drive much. Put about 400 miles in little over 2 months. Probably wont be at 1200 miles for another 3-4 months.. Should I do oil change around 600miles? |
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12-10-2022, 11:55 AM | #52 | |
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Ya want to change oil soon?....so you are asking the forum if you should? Yer gonna get all different answers, have you read the previous freaking posts? Or research 1000's of posts in other auto forums. You still won't get anything definite...do what ya wanna. If ya wanna, change oil every 600 miles, or not. I did a change very early, i do on all new engines (200-500 miles), just me, but I ain't gonna tell ya YOU SHOULD. |
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12-10-2022, 01:40 PM | #53 |
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You’d need to drain the oil and send some out for analysis to get a genuinely meaningful answer. Surely the oil itself is fine but it could potentially have picked up debris/contaminates left during production or assembly. It definitely can’t hurt to change the oil early. Personally I would go a little further. I trust OEMs engine assembly environment to be pretty good about reducing potential contamination. I did the standard 1200 mile first change on my S58, then did the second at 5000 and I will be doing every 5000ish from here out. Planning to do the same with my B58 whenever my m240 comes in
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12-11-2022, 08:00 PM | #54 | |
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12-12-2022, 12:34 PM | #55 |
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12-12-2022, 01:00 PM | #56 | |
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Dec. 3 I just bought a 2023 MINI Cooper S and I have it booked next Tuesday for an oil/filter service at the local BMW dealer. The MINI has just over 600 miles on it. Had the oil changed early -- can't recall the mileage now -- in my 2023 230i. Had the oil changed at around 500 miles in my 2018 Hellcat. Then again at 2K miles (end of break in) and at 5K miles then every 5K miles. Or as called for by the factory) every 6 months. And before that had the oil changed at around 600 miles in my 2018 MINI Cooper S JCW. And other cars before and since have gotten oil changes anywhere from around 600 to 1000 miles (in most cases halfway through "break in") then at the end of break in then at 5K miles and every 5K miles after. Sure most owners don't get the oil changed early and their vehicles don't suffer any consequences. But I just feel better treating the engine to fresh oil before the 1st "scheduled" oil change. |
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12-13-2022, 07:02 PM | #57 |
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For those that like to rehash break in over and over, well there is a separate section specific to break in and such under tech (this is the General section) that has multiple break in threads....dunno why we need to rehash it all here also?
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