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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 06-13-2008, 05:25 PM   #1
paraklas
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Thumbs Up Redline MTL 70W80 Has transformed my transmission! Mini Review

This is a mini review of the Redline MTL 70W80 Gear oil.


Quote:
This 70W80 GL-4 Gear Oil (SAE 5W30/10W30 engine oil viscosity) is designed for use in manual transmissions and transaxles. Provides excellent protection of gears and synchronizers and its balanced slipperiness provides a perfect coefficient of friction, allowing easier shifting. Popular in many BMW transmissions and in most Honda and Acura transaxle applications.
Brief history
2001 E46 5-Speed M54B22 with ESS TS2 & OEM Sachs Clutch, Rogue Engineering SSK, 66000miles
I have the car for 2.5 years and it always had a problem getting in 1st and 2nd gear sometimes. 3rd gear engagement was rough as well. Getting out of 3rd gear required more effort than the rest as well. The SSK install just amplified the problem a bit.

Replacing the OEM clutch with another OEM clutch did not solve the problem, neither removal of CDV and neither Gearbox oil replacement with OEM BMW MTL-LT-02. The flexi hose was fine as well as the master/slave cylinders.

So before starting to change expensive parts, I chose to replace the cheapest part; the oil. Seeing that the OEM fluid did not help at all, I decided to buy Redline's MTL 70W80 Gearbox oil. Gearbox took around 1.5 quarts of fluid and it was an easy 10 minute job.

Result
No more gear clunking
Super smooth engagement of ALL gears
Super smooth disengagement of ALL gears even with the CDV removed and the RE SSK installed. It's like having a new transmission and it's getting better after 2 days of driving (200miles). Can't believe that a simple oil change would do such a dramatic difference. Driving pleasure is back and no need to double clutch each time to get in gear.

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Old 06-13-2008, 05:45 PM   #2
VillanovaGrad
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how did u DIY?
what tools required?
i just changed OEM oil it kinda helped but not really..
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Old 06-13-2008, 09:01 PM   #3
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I have also replaced the fluid in the transmission on my old e30 and e46 with redline MTL and it does make a big difference. for like $18 or so its a nice upgrade.

as for tools, you need a 17mm socket (if i remember correctly.) its the same size as oil drain plug. a breakover bar might be needed if the tranny has never been touched... and a pump. i got one at walmart. i also put the front of the car on jackstands.

just my experience.

tip: make sure you take the fill plug off first. lol
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Old 06-13-2008, 11:55 PM   #4
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The car needs to be level when filling in order to get the correct amount into the transmission. Make sure to jack the rear of the car when filling.
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Old 06-13-2008, 11:58 PM   #5
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i'll check the level when i do the diff. (more redline )
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Old 06-14-2008, 12:09 AM   #6
Dunbar
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I had similiar results with Amsoil recently. The short shifter in my ZHP just glides between gears instead of being notchy. Doesn't seem to help the occasional tough time getting it into first though.
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Old 06-14-2008, 01:08 AM   #7
sprintman
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Straight RL MTL in my g'box but to thick for winter. Dropping half a quart and topping back up with RL D4ATF which is closer to OEM viscosity. Great when warmed up though.
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Old 06-14-2008, 05:52 PM   #8
Khowland
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nice timing on this one. i will be replacing mine shortly. part of the big maint. plan i am in the middle of...

i live and drive in temps that reach 10F at times.
will this stuff be an issue in the winter here..??????
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Old 06-14-2008, 08:33 PM   #9
paraklas
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don't know about very low temps but so far this has cured all the shifting issues
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Old 09-29-2008, 06:32 AM   #10
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hmmm, hasnt anyone seen the big yellow sticker on the side of the gearbox????
i'll tell you.......it says..... 'Life-time oil, do not change'.......
i know this because my gearbox is sitting on my kitchen floor right now!
should we be really messing with something like this? even after a clear warning????
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Old 09-29-2008, 06:40 AM   #11
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Quote:
Originally Posted by richierich46 View Post
hmmm, hasnt anyone seen the big yellow sticker on the side of the gearbox????
i'll tell you.......it says..... 'Life-time oil, do not change'.......
i know this because my gearbox is sitting on my kitchen floor right now!
should we be really messing with something like this? even after a clear warning????
Don't believe everything BMW tells you.

Seriously though it will be fine. In fact it will be better than fine. 'Lifetime Fill' is just a way for BMW to save costs and look good. 'Lifetime' means the life of the gearbox which without fluid changes will be about 100K.
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Old 09-29-2008, 07:23 AM   #12
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I have the same symptoms as what Paraklas described. I will try this for sure. Might as well change the diff oil also.
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Old 09-29-2008, 07:31 AM   #13
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As you believe in the total bs 'lifetime fill' I guess you also believe in the tooth fairy as well? Some people are just to stupid for words!
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Old 09-29-2008, 07:38 AM   #14
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After 12000 miles, shifts are still super smooth. Not a single issue with gear engagement
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Old 09-29-2008, 07:39 AM   #15
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Quote:
Originally Posted by paraklas View Post
After 12000 miles, shifts are still super smooth. Not a single issue with gear engagement
How about the diff? Did you change the oil also? If so, did you use Redline as well?
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Old 09-29-2008, 07:41 AM   #16
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I changed the diff but with OEM oil as I didn't experience any issues. I went to the dealership with a plastic tank and asked them to fill it for me
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Old 09-29-2008, 07:41 AM   #17
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Quote:
Originally Posted by richierich46 View Post
hmmm, hasnt anyone seen the big yellow sticker on the side of the gearbox????
i'll tell you.......it says..... 'Life-time oil, do not change'.......
i know this because my gearbox is sitting on my kitchen floor right now!
should we be really messing with something like this? even after a clear warning????
I think they retracted and they said later that the "lifetime" fluid is only good for 100,000miles.
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Old 09-29-2008, 07:41 AM   #18
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Quote:
Originally Posted by paraklas View Post
I changed the diff but with OEM oil as I didn't experience any issues. I went to the dealership with a plastic tank and asked them to fill it for me
Ok thanks!
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Old 09-29-2008, 07:42 AM   #19
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when my car is on jack stand i dont have enough room to get a brake bar underneath the car....how did you do it?
that damn bolt is on there tight

Quote:
Originally Posted by jeffro3000 View Post
I have also replaced the fluid in the transmission on my old e30 and e46 with redline MTL and it does make a big difference. for like $18 or so its a nice upgrade.

as for tools, you need a 17mm socket (if i remember correctly.) its the same size as oil drain plug. a breakover bar might be needed if the tranny has never been touched... and a pump. i got one at walmart. i also put the front of the car on jackstands.

just my experience.

tip: make sure you take the fill plug off first. lol
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Old 09-29-2008, 07:49 AM   #20
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Quote:
Originally Posted by richierich46 View Post
hmmm, hasnt anyone seen the big yellow sticker on the side of the gearbox????
i'll tell you.......it says..... 'Life-time oil, do not change'.......
i know this because my gearbox is sitting on my kitchen floor right now!
should we be really messing with something like this? even after a clear warning????
It's part of BMW's WAR ON MAINTENANCE.

Funny how back when I paid for maintenance, it was gearbox and diff every 30K or else. The "or else" was the implied premature replacement of very expensive parts. Consequently, the gearboxes and diffs would go 300K before any problems arose.

Now that BMW pays for it, the very same parts never need maintenance! Since most buyers trade before 100K, it works out fine. But for those of us who prefer to extract the maximum value out of a depreciating asset, it's bad news.

Mike Miller says he sees BMW diffs and gearboxes failing prematurely quite often these days.

Bottom line: as far as fluids go, you should stick with the M3 schedule. It's more like what BMW used to prescribe for all their cars back when they were built to last. (1984-1991)
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