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BMW 3-Series (E90 E92) Forum
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Transmission Maintenance
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08-26-2014, 07:49 AM | #90 | |
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08-26-2014, 08:29 AM | #91 |
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Ok amigos you convinced me I decided to the changes on my tranny and differential fluids I went the AMSOIL way and plan to do it next week car still in the shop for blown steering pump
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08-26-2014, 12:36 PM | #92 | |
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Mike Miller's BMW maintenance recommendation is diff fluid should be changed every 30,000 miles. I'm told he doesn't like his pdf to be posted to forums. Go google it yourself. It is a quick find. |
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08-26-2014, 12:43 PM | #93 | |
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08-26-2014, 03:55 PM | #95 |
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08-26-2014, 05:06 PM | #96 |
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I think I will stick changing the fluid. I have control of it not going bad in middle mountains or desert that way. My truck's diff broke during trip and it was Christmas holidays. Luckily it was covered under power train warranty. It would have cost $1300.
If you had a quafe, I bet you would change the fluid as opposed to spending $2500 again. To each his own. |
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08-26-2014, 05:11 PM | #97 |
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To be fair, I had changed fluid at 35,000 miles and it broke at 53,000. A sensor tip broke off into pumpkin and got ground up by ring and pinion.
I've changed the fluid once since then. |
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08-26-2014, 06:31 PM | #98 |
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I was thinking that even with extremely expensive fluid, a diff doesnt take much fluid, it must take dozens of fluid changes before you even out on the cost of a stock diff. The oem fluid is as much as $35/qt, call it two qts to fill which is probably more than it takes, $70 per change. OEM diff is $1400 per real oem, so 20 fluid changes? The ring and pinion are probably worn out before you get to 20 changes unless you just love to change it
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08-27-2014, 05:26 AM | #99 |
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I bought the car with 89,000, but I believe a transmission fluid change was not performed before as they guy rode the car from Dallas to Houston every week = minimal wear. With the general condition the car is in, this all checks out. I will post my analysis results when they are in.
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08-27-2014, 06:52 AM | #100 | |
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You never hear someone complain about a noisy diff unless it's an M. Besides a scrap diff can be had for cheap! Mike isn't a fan of maintenance for maintenance sake. His schedule is designed to avoid catastrophic failures and not failures of convenience. |
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08-27-2014, 08:11 AM | #101 |
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Thanks cuda next week ill be performed
For those interested 2 quarts is the amount of needed as per AMSOIL guidelines for the differential and of course i purcahsed it The Amsoil guy told me that after this change I would never need the diff change again but he told me that every 50k for the tranny IF I DONT race it but at 35k if I do race it!!
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08-27-2014, 04:44 PM | #102 | |
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This might be a matter of beliefs, but I believe the manufacturer should know best what to put into their own products. Let them have the extra buck. |
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08-27-2014, 04:53 PM | #103 | |
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Will they also send me a Pennzoil oil cap? |
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08-27-2014, 05:41 PM | #104 |
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Yes but when it comes to ZF i doubt fluids are that much of a profit center. They make money buy selling the trannys to oem. That said. Im def gonna trust their fluid over an unknown. Even if brand name
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08-27-2014, 05:43 PM | #105 | |
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08-28-2014, 07:58 AM | #107 |
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Which oil to use?
Yet, I'm very interested in PR's experience with the AMSoil. Let's talk again when we change oil next time and have the analysis done.
PR, do you have any chance of visiting a CAT dealership? |
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08-28-2014, 01:40 PM | #109 |
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09-13-2014, 10:28 AM | #110 |
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Got my results back this week. Strange though, my analysis says "No Problems" even though my copper levels are almost tripple of TDI's CU levels, which was noted a concern there.
Last edited by Mik325tds; 09-13-2014 at 10:33 AM.. |
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