What engine oil is everyone useing?

[Anvil]

What engine oil are you all running in your 400ex?

[dirtmomma]

HOnda, gold bottle red cap :)

do a search there is a ton of info on this :)

[RideRed84]

I used the valvoline ATV but I'll switch over to spectro for the next change

[kilgoja]

honda hp4 w/o moly....gold with red cap

[alex10]

Honda 10-40w motorcycle oil in a red bottle.

I've been using the Valvoline 4 stroke motorcycle oil it was like $3.86 a quart my last oil change. I was using the 10w - 40 but since its so hot where I ride and the 400ex always wanting to run hot because its air cooled I switched over the the 20w - 50 and the motor stays much cooler now. I used to run synthetic but I couldnt afford to pay for all of that nice stuff anymore.

[madmax400ex]

Well i was using HP4M - with moly 10w-40, but since i have heard bad things about it through these threads i will be switching to another oil not sure if i am going to stick with honda brand or go to another like Spectro.
Honda brand seems a little expensive.

[zrpilot]

15W-50 Mobil 1 Extended Performance
- with friction modifiers.

[Wheelie]

Was using GN-4 10w-40 in cooler months and 20w-50 in the summer months.

My last oil change I switched to Honda's Gold Bottle w/red cap. 10w-40

[NacsMXer]

Originally posted by zrpilot
15W-50 Mobil 1 Extended Performance
- with friction modifiers.

How is your clutch holding up with that? Do you have HD clutch springs at all?

I have some old Mobil 1 15w50 "red cap" that is discontinued that i'm going to finish up. No "energy conserving" on the seal on the back of the bottle, so no friction modifiers.

I haven't dared to run the new Mobil 1 15w50 (gold cap). You're the first i've heard that is running it in a motorcycle engine.

[coryatver]

I recommend 20w-50 synthetic. anything lighter or dyno oil the 400ex just cooks in one ride it needs changed

[zrpilot]

Originally posted by NacsMXer
How is your clutch holding up with that? Do you have HD clutch springs at all?

I have some old Mobil 1 15w50 "red cap" that is discontinued that i'm going to finish up. No "energy conserving" on the seal on the back of the bottle, so no friction modifiers.

I haven't dared to run the new Mobil 1 15w50 (gold cap). You're the first i've heard that is running it in a motorcycle engine.

I do have an 8 plate setup from our mutual friend in Millersburg OH. He suggested running this oil. He says that it protects better then motorcycle specific oil.

I trust him and have NO problems so far!!!

[NacsMXer]

Originally posted by zrpilot
I do have an 8 plate setup from our mutual friend in Millersburg OH. He suggested running this oil. He says that it protects better then motorcycle specific oil.

I trust him and have NO problems so far!!!

That is good to know, I have a 8 plate setup as well. I have heard that the friction modifier deal isn't as much of an issue with a beefed up clutch.

[humdinger]

Originally posted by zrpilot
15W-50 Mobil 1 Extended Performance
- with friction modifiers.

Same here too.

[smorris1]

klotz mx4 10w40 synthetic. Expensive but works great.

[Exrider434]

Just bought some valvoline 20w-50 for my change today. Its gettin hot here in NY.

[hyperpro]

10W40 AMSOIL:)

[all4sho]

15W-50 Mobil 1 Extended Performance
Same here on a stock clutch

[REDRIDDER]

PRO HONDA GN4.....20W-50

Originally posted by all4sho
15W-50 Mobil 1 Extended Performance
Same here on a stock clutch

I just picked up 5 quarts of that stuff yesterday long with a new oil filter. Syntheic is so much better, I used to run it but couldnt really afford to pay more for oil anymore with higher gas prices. Well i'm paying $4.35 a quart for synthetic now thats a deal!

[speedfoxracing]

i use valvoline motorcycle oil 20-50 in mine during summer idk wut i,ll run in the winter yet but i,ll have a fresh top end then 2

[Mitragorz]

Originally posted by NacsMXer
How is your clutch holding up with that? Do you have HD clutch springs at all?

I have some old Mobil 1 15w50 "red cap" that is discontinued that i'm going to finish up. No "energy conserving" on the seal on the back of the bottle, so no friction modifiers.

I haven't dared to run the new Mobil 1 15w50 (gold cap). You're the first i've heard that is running it in a motorcycle engine.

I've been using it on my streetbike for years. And the gold cap DOES NOT have the "energy conserving" crap in it.

As far as I know, none of the Mobil 1 Extended Performance viscosities are "Energy Conserving" (ie they don't contain friction modifiers).

The Gold cap is the same as the Red cap, except with more zinc and phosphorours.

[hypersnyper6947]

i hear amsoil 20w50 is the best to use but i can find it any where

[chayes627]

i am switching over to amsoil 20w-50 this upcoming oil change and i found out that you can only get it offline or through a independent dealer. i'm going through an independent dealer and the one im dealing with send you a big packet of information and a cd of info its actually pretty nice

[k4f5x0r]

10-w40. but for the summer i want to switch. it gets from 75-95 up in NY so any recomendations for oil? its getting pretty hot with the 10-w40

[Yippie-Ki-Yay]

I use Honda Gn-4 All year. My dad gets it for dirt cheap directly from honda or something.

[chayes627]

my running temp dropped dramatically with 20w-50 period and im in maryland. i went up to tower city in pa and it was 95 degrees with almost 100% humidity and i didnt have any problems with overheating

[NacsMXer]

Originally posted by Mitragorz
I've been using it on my streetbike for years. And the gold cap DOES NOT have the "energy conserving" crap in it.

As far as I know, none of the Mobil 1 Extended Performance viscosities are "Energy Conserving" (ie they don't contain friction modifiers).

The Gold cap is the same as the Red cap, except with more zinc and phosphorours.

Good to know...thanks. I just noticed at my local Walmart that the old "red cap" 15w50 is still made, but with a regular silver cap under the "red label" 15w50 bottle. I was going to up and run that, but if the gold cap 15w50 isn't much more expensive i'll run that instead. Either way it's good oil that I change frequently so you can't go wrong :D

[Mercedes]

I got the curtis sparks timming advance key and my engine runs a little hotter.

I run AMSoil 20W50 full syntec

[mooseracerX]

I just switched from Valvoline Motorcycle to Bel Ray Thumper Oil 20-50 and got a stainless filter right away too shouldn't have to change it the rest of the year. Only bad part is stuff is $40 a gallon.

[krt400ex]

Bel-ray semi synthetic 20W 50

[krt400ex]

Originally posted by mooseracerX
I just switched from Valvoline Motorcycle to Bel Ray Thumper Oil 20-50 and got a stainless filter right away too shouldn't have to change it the rest of the year. Only bad part is stuff is $40 a gallon.

or $12.95 a liter