[Roger]

My dealer gave me GNA 10w40 motor oil and said to use it in both the crank and trany for my CRF 250R. Is this OK? Would I be better off with a transmission oil? I did not buy my bike there and thought they might be trying to mess my motor up. I hope that is not the case but thought I would ask here.

[Asmith]

It will work just fine.

It is my opinion that a specialty transmission fluid is more suited to the stress of a gearbox than a typical motor oil.

I use Maxima MTL 80W in my transmission. Many use the Honda 85W80 (red bottle) in theirs.

[Cougar1]

I did a search to find a thread that already existed. I just bought a 2006 CRF250R used.

I am an Amsoil guy at heart, but my riding buddy told me to put the Honda HP4 With Moly in the Engine and the Honda HP4 without Moly in the trans. I believe both are 10w40.

I want to run Amsoil 10w40 in the gearcase side. Do I run that also in the trans? Or Do I need the HP4 without moly? What is recommended that I can buy at the Honda dealer.

And all I need is an oil filter and the fluids right? Nothing else special?

Thanks!

[Skoot22]

Maxima MTL is probably the best oil out there for the Trans. You definitely can feel a difference when the bike shifts. It shifts alot smoother.

[Cougar1]

Alright.. I will try it. So the consensus says 80W?

Think I can get this at a big motorcycle shop here in town? or special order only?

[Skoot22]

Alright.. I will try it. So the consensus says 80W?

Think I can get this at a big motorcycle shop here in town? or special order only?

Motorcycle shops should have it. Its not a special oreder item.

[124]

I did a search to find a thread that already existed. I just bought a 2006 CRF250R used.

I am an Amsoil guy at heart, but my riding buddy told me to put the Honda HP4 With Moly in the Engine and the Honda HP4 without Moly in the trans. I believe both are 10w40.

I want to run Amsoil 10w40 in the gearcase side. Do I run that also in the trans? Or Do I need the HP4 without moly? What is recommended that I can buy at the Honda dealer.

And all I need is an oil filter and the fluids right? Nothing else special?

Thanks!

You can run the Amsoil Motorcycle 10W-40 in both engine and tranny if you want to go that route. These guys will have you doing shots of that Maxima MTL soon if you let them...

Kidding aside, Maxima is great stuff but you can't go wrong with Amsoil either. Your choice...

[Cougar1]

So I was thinking about quantity of fluids. My friend who rides the 450X says to put 1 full quart in the tranny and measure properly for the engine side. So how much do you guys run? Are you all to manual spec or is there a special secret amount?

And it is ok to run Amsoil 10w40 on both sides without any issues?

[124]

So I was thinking about quantity of fluids. My friend who rides the 450X says to put 1 full quart in the tranny and measure properly for the engine side. So how much do you guys run? Are you all to manual spec or is there a special secret amount?

And it is ok to run Amsoil 10w40 on both sides without any issues?

Not sure about running a full quart in the 250R. Can't comment. I usually run about 750-800ml in both sides of my 450R. The 450X absolutely run a full quart in the trans...
As long as its the motorcycle version of the Amsoil 10W-40; yes, both sides ok.

[redrooster65]

The full quart is a bit much for the 250's, most guys are running about 800cc's

[Asmith]

These guys will have you doing shots of that Maxima MTL soon if you let them...

Pffft!!! Everyone knows you don't do shots of Maxima MTL...you sip it slowly over two ice cubes...

[itsgrady]

That stuff is WAAAYYYYY too strong for minors, don't throw those kinda ideas around!

[124]

These guys will have you doing shots of that Maxima MTL soon if you let them...

Pffft!!! Everyone knows you don't do shots of Maxima MTL...you sip it slowly over two ice cubes...

[crfpwr]

so i heard somthing about running atf type f in the tranny side can you do that or is it better to just run the 10w-40 in both....
why 10w-40? i have been running a 5w-30 is that ok for the hot weather or shall i run a heaver oil