[Cwelch]

What’s the best transmission fluid for my bmw e60 bmw?

[M3SQRD]

Originally Posted by Cwelch

What’s the best transmission fluid for my bmw e60 bmw?

MT or AT?

[No one]

Originally Posted by M3SQRD

MT or AT?

AT: MT has no transmission fluid, only oil, AFAIK.

[Cwelch]

Originally Posted by M3SQRD

MT or AT?

Its AT transmission

[M3SQRD]

Originally Posted by No one

AT: MT has no transmission fluid, only oil, AFAIK.

They sell fluid labeled as automatic trans fluid and manual trans fluid. Was asking for clarification…but automatic transmission fluid (ATF) serves several purposes such cooling, lubricating, transmitting force, and acts as a hydraulic fluid with special additives to prevent foaming, rust, and wear whereas manual transmission fluid primarily lubricates gears and reduces friction.

FYI, OP was looking for AT, not MT, trans fluid.

[M3SQRD]

Originally Posted by Cwelch

Its AT transmission

Pentosin ATF1 if you have a green or black sticker on your trans.

What year and e60 5-series model do you have?

[No one]

Originally Posted by M3SQRD

They sell fluid labeled as automatic trans fluid and manual trans fluid. Was asking for clarification…

That looks like they don't want you to know what you disclose below then.

Originally Posted by M3SQRD

but automatic transmission fluid (ATF) serves several purposes such cooling, lubricating, transmitting force, and acts as a hydraulic fluid with special additives to prevent foaming, rust, and wear whereas manual transmission fluid primarily lubricates gears and reduces friction.

Originally Posted by M3SQRD

FYI, OP was looking for AT, not MT, trans fluid.

That's how I got it and posted FYI.

[M3SQRD]

Originally Posted by No one

That looks like they don't want you to know what you disclose below then.

That's how I got it and posted FYI.

I’m not sure what point you’re trying to make? BMW offers ATF and MTF (e.g., MTF LT3, MTF LT5, etc.). ATF and MTF are sold regardless of the type of fluid.

[No one]

Originally Posted by M3SQRD

I’m not sure what point you’re trying to make? BMW offers ATF and MTF (e.g., MTF LT3, MTF LT5, etc.). ATF and MTF are sold regardless of the type of fluid.

I mean ATF is a multi-purpose "fluid" but MTF is effectively "oil": I double-checked it, BMW does not offer "engine fluid", it's "engine oil" (that "lubricates gears and reduces friction", to my knowledge). Never mind, your request for clarification was correct then , but their terminology seems misleading/inconsistent.

[Cwelch]

Originally Posted by M3SQRD

Pentosin ATF1 if you have a green or black sticker on your trans.

What year and e60 5-series model do you have?

I have a 535x I drive and it’s 2009!

[RockCrusher]

Originally Posted by Cwelch

What’s the best transmission fluid for my bmw e60 bmw?

The car is a 2009 and I assume the transmission is ok. Thus I'd offer whatever transmission fluid BMW calls for.

[RockCrusher]

Originally Posted by M3SQRD

They sell fluid labeled as automatic trans fluid and manual trans fluid. Was asking for clarification…but automatic transmission fluid (ATF) serves several purposes such cooling, lubricating, transmitting force, and acts as a hydraulic fluid with special additives to prevent foaming, rust, and wear whereas manual transmission fluid primarily lubricates gears and reduces friction.

FYI, OP was looking for AT, not MT, trans fluid.

There are gears in an automatic transmission. Also in both manual and automatic transmissions gear teeth have an involute shape and thus experience a rolling motion against a mating tooth.

As an aside I don't know how common it is but some manual transmissions can be designed to use (require) ATF and not the more viscous manual transmission lube.

My 1996 Mustang GT and its 5-speed manual was one such transmission.

[M3SQRD]

Originally Posted by RockCrusher

There are gears in an automatic transmission. Also in both manual and automatic transmissions gear teeth have an involute shape and thus experience a rolling motion against a mating tooth.

As an aside I don't know how common it is but some manual transmissions can be designed to use (require) ATF and not the more viscous manual transmission lube.

My 1996 Mustang GT and its 5-speed manual was one such transmission.

Yes. I’m aware of their being gears in an AT. All I did was ask the OP to clarify whether it was an AT or MT, considering BMW sells both.