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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > 2012-2019 BMW 3 and 4-Series Forums > General F30 Sedan / F32 Coupe / F36 Gran Coupe Forum > BMW F30 Transmission Fluid Change
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      06-12-2019, 05:47 AM   #1
wicked510
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BMW F30 Transmission Fluid Change

Just wanted to report to everyone:

First fluid change at 120,000mi with zf lg8 made the transmission shift flawlessly.
-Slow 3-2-1 shift at 171,000
Second fluid change at 172,000mi with Amsoil Signature Advance Fuel Economy ATF.
-Shifting smooth once again.

I went back and forth as to whether or not to try an alternative to lg8. Amsoil is red in color, smells like the zf stuff and specs are close. Have been running it for 2000 miles already in stop/go city driving. So far so good!

There doesn't seem to be much info online using the Amsoil stuff in the zf gearboxes. No I'm not an Amsoil dealer

2014 BMW 328dx zf8hp45
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      06-12-2019, 06:39 AM   #2
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You're aware that when you drain and fill your transmission fluid, that only about half of it comes out right?

I'm not sure I'd be brave enough to mix the Amsoil stuff with the remaining ZF fluid in your transmission.

What are the incremental benefits you are hoping to achieve from switching fluids?
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      06-13-2019, 03:00 AM   #3
wicked510
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None. It's purely a consideration of cost ZF lifeguard 8 didn't give me any trouble and neither did the Amsoil. It looks like people have had success with the Valvoline maxlife as well.

I am dreaming that it will shift great for longer than 50 thousand miles this time. My car is essentially a taxi.
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      06-14-2019, 03:24 AM   #4
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Motul and Amsoil make good oils. I'm sure it's far better to have fresh fluid and a new filter than it is to keep your old LG8 fluid in the car. They have reputations and wouldn't recommend their fluids if they didn't work or mix properly with OEM fluids.

That said, if I had an automatic, I'd probably just get LG8. I don't drive enough where I'd ever even do the change more than once.
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      06-14-2019, 09:34 AM   #5
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Goddamn you put 172k on the car? How is it running? Any major issues after 100k?

Good shit man!
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      06-14-2019, 04:37 PM   #6
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So far so good! Just a few wear and tear items like rear wheel bearings and a pressure sensor. As long as the drivetrain keeps going I am impressed.
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      06-14-2019, 05:02 PM   #7
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Cool. Back in my E46 days I used Redline ATF with no issues.
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      06-14-2019, 05:46 PM   #8
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Quote:
Originally Posted by wicked510 View Post
Just wanted to report to everyone:

First fluid change at 120,000mi with zf lg8 made the transmission shift flawlessly.
-Slow 3-2-1 shift at 171,000
Second fluid change at 172,000mi with Amsoil Signature Advance Fuel Economy ATF.
-Shifting smooth once again.

I went back and forth as to whether or not to try an alternative to lg8. Amsoil is red in color, smells like the zf stuff and specs are close. Have been running it for 2000 miles already in stop/go city driving. So far so good!

There doesn't seem to be much info online using the Amsoil stuff in the zf gearboxes. No I'm not an Amsoil dealer

2014 BMW 328dx zf8hp45
You do any other adjustments to the assembly after the fluid change?
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      06-18-2019, 08:06 PM   #9
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Quote:
Originally Posted by wicked510 View Post
Just wanted to report to everyone:

First fluid change at 120,000mi with zf lg8 made the transmission shift flawlessly.
-Slow 3-2-1 shift at 171,000
Second fluid change at 172,000mi with Amsoil Signature Advance Fuel Economy ATF.
-Shifting smooth once again.

I went back and forth as to whether or not to try an alternative to lg8. Amsoil is red in color, smells like the zf stuff and specs are close. Have been running it for 2000 miles already in stop/go city driving. So far so good!

There doesn't seem to be much info online using the Amsoil stuff in the zf gearboxes. No I'm not an Amsoil dealer

2014 BMW 328dx zf8hp45
Thanks for the report back. Did you drop the pan when you changed the fluid? +1 on Amsoil as that's what will be going in mine ( and my 135i) they make w DCT fluid too. I'm at 134k right now. It shifts good but I'm sure it will improve more with the new fluid
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      06-18-2019, 08:08 PM   #10
Moveitsmikey
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Quote:
Originally Posted by Mr Podman View Post
You're aware that when you drain and fill your transmission fluid, that only about half of it comes out right?

I'm not sure I'd be brave enough to mix the Amsoil stuff with the remaining ZF fluid in your transmission.

What are the incremental benefits you are hoping to achieve from switching fluids?
Only if you don't drop the pan. There's another like 2.5 quarts in there that drains.
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