I'm just curious of what other fellow F4i owners are putting into their bikes. Right now I have 5w-40 Castrol full synthetic power RS racing 4t oil. I know it's supposed to be 10w-40 but I bought these and put it in my bike before I realized it's supposed to be 10w-40. It should still be fine since it's summer and not cold outside.
For the coolant I bought RED LINE OIL Supercool Performance Coolant with WaterWetter at cycle gear.

I want to know what you guys use, because I want to use the best for my bike and treat her like a well fed queen. To get the maximum life and performance from her. So let me know! And I will change out what I am currently using with the stuff you guys recommend.

 

There are m-a-n-y threads on oil & coolant here on the forum. Suggest you look thru all the previous threads. ;-)

 

amsoil!!!! and coolant i just use factory reccommended. normally Honda brand from dealership.

 

And...it begins. ;-)

 

I know there are other threads similar to this. but most of them are talking about problems with their bikes. I just was curious about what people were using and the best type. rather than complaining about by bike overheating and desperately trying to find a coolant to fix it. All I want to see is whats most popular.

 

Then you haven't looked hard enough. ;-) Just wanted you to be aware that this topic comes up very often & there are many threads on the same topic. There's lots of feedback already that you may be interested in reading.

No worries. ;-) We'll get you situated w/ all the info you want.

The choices you went w/ are acceptable. I also use WaterWetter.

OEM = ProHonda 50/50 Premix Coolant & ProHonda GN4 oil (dino).

There are many acceptable options... Rotella oil is another favored replacement.

 

Rotella and engine ice.

 

elf moto 10w40 synthetic blend

 

im using suzuki full synthetic racing oil, its cheaper than your big players and i was told it was quite popular.
as for fluid im using engine ice, i wish i would of researched first because engine ice has anti-freezing chemicals. i would of gone water wetter and distilled water had i of known.
actually it still seems like a whole lot behind engine ice, with people saying it doesnt transfer heat as good therefore it reads a lower thermostat while your engine is hotter.
i couldnt find any definitive answers, so it'll be for now.

 

Rotella T6 and Honda HP-4 coolant for me