What oil to run...

[YoungPUP]

Ok  I know from reading here that this question is likened to hitting a hornets nest with a baseball bat, but here goes anyway.... What oil (type) should be run in the fat lady?  the Previous idiot..er I mean owner just said  "oil" what do you guys think. I was raised with castrol products.  Does she need motorcycle oil or will car oil do????

[hubcapsc]

Motorcycle oil doesn't have certain additives that might make your clutch slip, some/many
non-motorcycle oils do.

-Mike

[Thunderbolt]

on the bottle.  I use Mobil 1 MX4T motorcycle oil.  I only change every 5000 or so miles,

[Red Diamond]

Mobil 1 15-50w, quites the gear whine, non energy conserving.

[GOOSE]

shell rotella-t 15-w-40 heavy truck oil.  i run it in my trucks almost 3-million miles/all the cars i own/and have run it in my bikes from the start.  not a problem in  any one of them.

[X Ring]

Here's Chet's FAQ page.  http://www.rattlebars.com/valkfaq/  Whatever oil you choose, make sure it doesn't have "Energy Conserving" in the bottom half of the circle on the back.

Marty

[2qmedic]

What GOOSE said +1

[flcjr]

I second Thunderbolt but the bottle as changed now it reads Mobil 1 Racing 4T 10W-40

[Tundra]

Mobil 1 15-50w, quites the gear whine, non energy conserving.

+1 on the Mobil 1 15-50. I switched from the Amzoil which was my all time favorite motorcycle oil. I just refuse to pay their prices. I can tell no difference between the two. I may possibly start "hearing" things soon, as I am in the process of quieting down my straight pipes with  home made screw in Cherry bomb mufflers.

[Mean Cat]

Been using Mobil 1 15w50 in 5 qt. jug from walmart. But walmart quit handling it. Worked great in my valks for years.

[JC]

I second Thunderbolt but the bottle as changed now it reads Mobil 1 Racing 4T 10W-40

+2 

[donaldcc]

  Here in the desert, Mobil 1 V-Twin 20W-50 at last oil change. 

[Farther]

Shell Rotella T6.  $19+ for a four quart jug at Walmart.

[X Ring]

Been using Mobil 1 15w50 in 5 qt. jug from walmart. But walmart quit handling it. Worked great in my valks for years.

That's why I bought my local Wally World's stock when they put it on the discontinued shelf. 

Marty

[BF]

+1 for the Mobil One V-Twin 20W-50 MOTORCYCLE oil. 

http://www.mobiloil.com/usa-english/motoroil/oils/mobil_1_v-twin_20w-50.aspx

[BradValk48237]

Just to chime in....... I have used Valvoline 20w 50 in all my bikes for the last 20+ years.... all hondas and no problems...  Whatever oil you use the best thing is to change it on a regular basis..... I change mine every 3000... still cheaper to use regular oil and change it more often than to use Synth and let it go longer...  its the metal dust/chip, excess gas , heat and time that effect any oil... changing it more often gets the crap outta the motor....... Just my opinion...

B

[CB1]

Another vote for the Mobil1 V-twin 20-50 oil. I like how smooth it makes the bike feel.

[custom1]

Original owner told me he ran Castrol synthetic 20w50. Anyone else run this? Opinions? Good or bad?

[X Ring]

Just make sure it meets the specs and doesn't have energy conserving in the circle on the back label.  I started out using Mobil 1 Racing T 10w40.  Then tried Rotella T Synthetic 5w40.  My engine got real noisy.  Switched to Mobil 1 15w50 and my engine quietened down .  I like it and am not switching if I can help it.

Marty