FL5 Transmission Fluid recommendation

[Unobtanium]

More like Honda's been using the same fluids and transmissions for decades and they just do what's best for their packaging. Nothing wrong with the fluid choice

You're telling me that a company that molds mm thick canards onto a front air dam flap just put whatever was handy in the gearbox?

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[Cueyo]

You're telling me that a company that molds mm thick canards onto a front air dam flap just put whatever was handy in the gearbox?

I mean they've used the same transmission for the type R for over ten years, just with upgrades to different parts. It's not like Honda didn't develop(?)/choose the mtf to not handle the max case. It's definitely not just what was handy, it was made with a bunch of Honda manual transmissions in mind. Again, packaging to save money on development for the whole brand.

 

[Spart]

You're telling me that a company that molds mm thick canards onto a front air dam flap just put whatever was handy in the gearbox?

Pretty much.

If you think otherwise, you're both over-thinking and under-thinking the whole situation:

• Overthinking: Honda's MTF isn't all that special, and it doesn't need to be. Honda also doesn't use a special engine oil for these cars, or a special engine oil filter. Hell, they don't even use DOT4 brake fluid - they use DOT3 like it's 1999. The consumables are designed with the dealership's service department in mind.
• Underthinking: the qualities of a MTF that might make an owner choose one over the other are only somewhat related to the qualities of a MTF that might make Honda choose one over the other.

 

[Unobtanium]

I think also it would help to keep in mind its not just a transmission. It'd also a torsen style diff that is going to be seeing whatever fluid you choose. I feel like Honda oem changed often enough is a good move.

 

[Spart]

I think also it would help to keep in mind its not just a transmission. It'd also a torsen style diff that is going to be seeing whatever fluid you choose. I feel like Honda oem changed often enough is a good move.

It's worth bearing in mind insomuch as it doesn't matter at all, and that's straight from the manufacturers of such devices.

There are other types of LSDs that require specific lubricant additives to function properly, and ours isn't one of them.

You would do well to read my thread on manual transmission fluid disinfo, particularly this post, before you start spreading more disinfo.

 

[Unobtanium]

Pretty much.

If you think otherwise, you're both over-thinking and under-thinking the whole situation:

• Overthinking: Honda's MTF isn't all that special, and it doesn't need to be. Honda also doesn't use a special engine oil for these cars, or a special engine oil filter. Hell, they don't even use DOT4 brake fluid - they use DOT3 like it's 1999. The consumables are designed with the dealership's service department in mind.
• Underthinking: the qualities of a MTF that might make an owner choose one over the other are only somewhat related to the qualities of a MTF that might make Honda choose one over the other.

FL5 CTR factory spec is DOT4 brake fluid.

 

[Spart]

FL5 CTR factory spec is DOT4 brake fluid.

No, it isn't.

 

[Cueyo]

I think also it would help to keep in mind its not just a transmission. It'd also a torsen style diff that is going to be seeing whatever fluid you choose. I feel like Honda oem changed often enough is a good move.

Also doesn't have a torsen diff, it's a helical lsd that's mechanical

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