what type of oil do u recommend for a 400ex

[400exrich]

i got a full yoshimura pipe k&n intake a um upgraded oil tank just want to know what u guys suggest

[Mtndew99]

Honda gn4 in my opinion but your going to get 1000 different opinions on which oil and why it's better

[kt1148]

a lot of people run Shell RotellaT 15W40, which I run myself. At $13 a gallon it's pretty good oil, but as said previous, everyone will have their own opinions.

[Exrider911]

Same here i run Rotella t 15W40 in my built 440 and never had a problem with it. $13 a gallon for a good oil, you cant go wrong.

[ride red 14]

what they ^^^ said. can't go wrong with rotella.

[cupidsrose]

Hi, everybody, I am a new friend.

[Atvers]

I have tried motul brand oil and noticed that the engine became sluggish and consumes more oil. Switched to rotella, I instantly noticed the difference. Better throttle respond and more fuel mileage.

[motoking]

had real good luck with amsoil 20w50

[Crosshairs]

I use 0W40 Amsoil Formula 4 Stroke Powersports Synthetic in all of my quads

[jfwyatt1]

another 4 rotella 15w40 clutch feel is great

[2001400exrida]

rekluse actually recommends running rotella with their clutches if you get any slippage. i figure if rekluse suggests it, it can't be a bad oil for our wet clutch applications.