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10-06-2009, 07:05 AM | #1 |
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low mileage and oil change frequency
Hi Everybody, here's a noob question.
My 135i is purely a "fun" car. I've had it for 9 months with only 4k miles on it. I did the original oil change at 1200 miles to flush out. However, BMW has complimentary 4 year oil change (i.e. 2x a year for 4 years) as part of their service plan. So, here's the question: given the low miles I put on my car, should I a) change the oil only when needed (..say once a year) b) change the oil 2x a year (because it's free) I would say that my driving style is civilized with the odd spirited sprints here and there and I'm sure I will store the car in the winter. I don't know too much about any oils, and so I'm not sure if I should even bother going to the dealership to change oils. Any feedback is greatly appreciated. Slamako |
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10-06-2009, 07:08 AM | #2 |
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b) change the oil 2x a year (because it's free)
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10-06-2009, 09:15 AM | #3 |
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I thought the maintenance interval for oil was determined by the onboard CBS system? In any case you should do it (or have it done) at least once a year.
I actually have a similar issue, only have 6000 on mine and did the 1200 one myself. Planning the next one before it gets too cold out, maybe when I swap my summer wheels. |
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10-06-2009, 10:39 AM | #4 |
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If you are only driving 4,000 miles in 9 months, then changing it more often than once a year seems pretty wasteful - even if it's free in Canada.
(In the US, it's one free change per year if the mileage requirement hasn't been met.) Tom |
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10-06-2009, 10:48 AM | #5 |
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10-06-2009, 11:04 AM | #6 |
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b) change the oil 2x a year (because it's free)
I dont think you can change the oil 2x because it is free. BMW will only do it when you hit either the 12,000 mile mark or the 1 year mark. I tried it, and they denied me the oil change. |
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10-06-2009, 12:28 PM | #7 |
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I did mine at 1300 and I will do it again at 3000. If you drive a car hard when you do drive it then you should change it often. I do not trust any manufacturer that say you can go 15k with no change. Every 2-3k is best for long life.
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10-06-2009, 01:03 PM | #8 |
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Thanks everybody for their input. I spoke with my SA and mentioned that
-I am good for a free oil change 1x a year at low mileage (Tom K--same as the US, thanks) -@Brad-I agree that trusting the onboard computer to tell you when the oil should be changed should not be recommended. Thanks for the responses. Slamako |
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10-06-2009, 01:10 PM | #9 |
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I did 1200...last October '08 and 4800 August '09. Technically, my CA says we can do a 1 year oil change for free so I may do it right before I put the car away for winter considering that I didn't reach 15k, but the car is now a year old.
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10-06-2009, 01:40 PM | #10 | |
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Those statements are COMPLETELY baseless. I'd love to see you provide once single study that shows that changing synthetic oil every 3k miles instead of every 10k miles increases the life of an engine. You're pulling that STRAIGHT out of your ass. |
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10-07-2009, 09:44 AM | #11 | |
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Ouch!
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10-07-2009, 12:09 PM | #12 |
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Do I attack you or anyone onthis board on the things they say? No I don't. Show some maturity. Ok go ahead and change your oil every 15k and see what happens to your rings and cylinder walls.lol I have built many motors in my time and raced cars as a hobby for 15 years so I know what works and what doesn't work in my experience. Why don't you go tell a race engine builder that doing it every 15k is ok for a performance engine that will be making in some cases 80+Hp more over stock like a lot of us are doing and he will laugh at you. Or go talk to a metallurgist and mechanical engineer like I did to get my information. Seems you like to get upset and lash out for some reason. Not sure what that is all about.
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Last edited by HPFREAK; 10-07-2009 at 12:44 PM.. |
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10-07-2009, 12:17 PM | #13 | |
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10-07-2009, 12:26 PM | #14 |
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Yup it makes no sense and if I was looking at that car i would think it was neglected. Oils of today are not magical liquids that can protect to their fullest for 15k. In an engine that is turbo charged and generates a ton of heat it is eve more important to change oil often to ensure the oil is doing its job and not broken down. I have seen bench test of the major brand and whats happens to them under prolonged abuse in mderate to high HP engines that develope a lot of heat and they break down much much faster. take me at my word or dont, it is up to you in the end to care for your car properly. I have no clue how what I said in my first post could at all be taken as a bad thing or bad advice.
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10-07-2009, 12:41 PM | #15 | |
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I have talked to engineers. The ones from BMW..you know....the guys that DESIGNED the engine. Oil changes every 3k miles is fucking ABSURD. If you want to cut the oil change interval in half because you're running the car hard, that's fine, but to make the statement that you will prolong engine life by doing oil changes every 2-3k miles is a baseless crock of shit. If it's not, prove me wrong with some sort of study instead of going on and on about how much you know about engines. I can guarantee you I've got more time inside the guts of a car than you do, so spare me. |
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10-07-2009, 12:53 PM | #16 | |
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10-07-2009, 01:04 PM | #17 | |
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You know what Brad, you need to get ahold of YOUR comments. As I said earlier, if you don't want someone calling BS on you, DON'T POST BULL SHIT! It's bad for three reasons A - It's a waste of money B - It's a waste of time C - It's a waste of resources You're done because you can't back up what you're saying with any sort of proof whatsoever. You made the claim, now lets see something other than your claimed experience with a couple engines to back it up. |
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10-07-2009, 01:22 PM | #18 | |
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There have been several posts already where a Blackstone report shows that the oil sample tested has been consistent with proper break-in procedures for folks who've done 1300/2700/5000 miles and is decreasing over time. I would agree that a more frequent oil change, every 4500-5000k would be a more acceptable interval than the manufacturer recommended every 1 year or 15k. It removes the break-in metals and composites each oil change. You know as well as I do that if BMW recommended a more frequent interval: 1) it would cost the manufacturer more money to honor the scheduled maintenance 2) it would be ridiculously hard to get an oil change appointment thereby making it inconvenient. That imho is the real reason why its a 1yr or 15k interval instead of an every 5mo or 5k-7500 interval. There's nothing wrong with spending a little more money/resources on your own car if the end result isn't detrimental. Its also recommended practice by the tech writer for Roundel, so thats good enough for me.
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