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Buell Forum » 1125R Superbike Board » Archive through July 17, 2013 » Amsoil dominator 15 w -50w racing oil « Previous Next »

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Mvaughn556
Posted on Sunday, May 19, 2013 - 08:54 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Has anyone used amsoil dominator 15w-50 racing oil in there buells
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99buellx1
Posted on Sunday, May 19, 2013 - 09:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You probably want to use the 10-40 advanced.
It's what we use in our race bikes.
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Jdugger
Posted on Monday, May 20, 2013 - 07:05 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yea, tried it on my stock bike this past oil change.

Seems fine here. I went to it because it's cheaper than Mobil-1 now, and rated equally well.
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Crowley
Posted on Monday, May 20, 2013 - 11:28 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Following a tip from a team that races Ducatis, I started to use Motul Factory Line 15/50 in my 1198. Since using this oil they told me that they've not had any cam follower scuffing at all, unlike with the Shell Rotella which Duc recommends.
Since I bought a large barrel of this stuff, I've been using it in my 1125 as well, but I do have a fetish about warming motors up very gently.
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Smoke4ndmears
Posted on Monday, May 20, 2013 - 06:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

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Jdugger
Posted on Monday, May 20, 2013 - 08:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Pretty much the most awesome picture ever. What a great moment to capture.
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Smoke4ndmears
Posted on Monday, May 20, 2013 - 08:34 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Right after warm-up. Oil used for one session! A proper oil change too, with the penta-plate removed and everything.

Unfortunately Geoff's day didn't go so well:



This thing was sitting around, un-supervised:







So, sorry Rich, this is what happens:





(Message edited by smoke4ndmears on May 20, 2013)
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Rodrob
Posted on Tuesday, May 21, 2013 - 02:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I was just told by EBR that Amsoil Dominator 15-50 is the ONLY oil to use in the 1190RS.
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General_tso
Posted on Tuesday, May 21, 2013 - 07:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Rob,

I've been using the Amsoil 20W 50 in my 1125R. In fact, just changed the oil today.

Is the Dominator a better choice for the 1125R. It's Race / Track duty only.
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Rodrob
Posted on Tuesday, May 21, 2013 - 09:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I was using 20-50 as well. Since it's essentially the same motor, I would have to say yes based on what EBR told me. Might be overkill for the 1125 due to less RPM and compression. Doubt it would hurt.
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Smoke
Posted on Wednesday, May 22, 2013 - 06:24 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

advised by EBR engine shop to use -50 synthetic for best results.
tim
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Thefleshrocket
Posted on Saturday, May 25, 2013 - 01:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I've been sticking with (Amsoil) 10W40--the reason being that the 10-weight is noticeably thinner than a 15-weight or 20-weight, providing better protection on cold starts, which is where a significant amount of the engine wear happens on street bikes. (This is especially important for bikes ridden in cold temps, where the flowability difference between 10-weight and 15- or 20-weight is even greater.) Also, the 40-weight is only marginally thinner than a 50-weight when hot, so there isn't much difference in protection between the two weights when the oil is hot.

A race bike would logically be a different story, since unlike most street bikes, it will spend practically all of its time running being run hard. Wear at startup is less of a concern, but wear under hot, high-load conditions is, hence the benefit of running a 50-weight oil.
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Rodrob
Posted on Monday, June 03, 2013 - 02:57 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Got my case of Amsoil Dominator Racing Oil as recommended by EBR and did the first fill today. This stuff is totally different form the Amsoil 20-50 Motorcycle oil that I have been using. Much thinner and more flow-able when cold. More than I would expect from just a 5 wt difference. Noticeable difference in cold cranking Anxious to see how it effects response and temps on the track.
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Two_seasons
Posted on Monday, June 03, 2013 - 09:43 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Sounds like that would be a better choice of oil grade, for year round riding, in the colder climates too.
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Xnoahx
Posted on Monday, June 03, 2013 - 08:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Any info if the racing oil is recommended for street use in relation to the service interval. Racers probably change their oil much more often than street riders.
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Jdugger
Posted on Monday, June 03, 2013 - 08:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

> Racers probably change their oil much more often than street riders.

On my race bike, it's roughly every 5 hours!
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Rodrob
Posted on Monday, June 03, 2013 - 08:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I don't see any info on service interval because as mentioned racers are typically compulsive about changing oil. Looking at the oil after a race is a cheep and easy way to evaluate the engine. However I can't see any reason why it would not exceed normal service intervals on a streetbike.
Info here -
http://www.amsoil.com/shop/by-product/motor-oil/ga soline/dominator-15w-50-racing-oil/


(Message edited by Rodrob on June 03, 2013)
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D_adams
Posted on Monday, June 03, 2013 - 09:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Guess I'll wait until the next oil change myself, just did mine with the 20w50 today.
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Nobuell
Posted on Tuesday, June 04, 2013 - 12:28 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

How will it work with the wet clutch? It is not JASO rated as far as I can find.
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Jdugger
Posted on Tuesday, June 04, 2013 - 08:17 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It works fine.
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Mortbike
Posted on Tuesday, June 04, 2013 - 08:24 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I spoke with a tech at Amsoil yesterday and he said the Dominator 15w-50 is not recommended for street only bikes especially due to the long term effect of the extra friction modifiers on the clutch and it is not rated for use with a clutch and is not a motorcycle specific oil for streetbikes. He also said the standard 20W50 Amsoil V Twin oil is bullet proof and more than meets the needs of the streetbike. I was interested in the Dominator race oil for my stock engine, street only, 1125CR as well as for my Harley XR1200. The XR1200 has a 1250 kit, cams, ported heads, stronger valve springs, etc, also only ridden on the street. He said I could put the Dominator race oil in the crankcase of the XR and the standard 20w 50 in the primary but it was not necessary so I am going to stay with regular amsoil or mobil 1 v twin 20w 50. Mort
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Two_seasons
Posted on Tuesday, June 04, 2013 - 09:39 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Mort,
Thanks for the follow up.
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Rodrob
Posted on Tuesday, June 04, 2013 - 11:43 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Good info. Thanks.
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99buellx1
Posted on Tuesday, June 04, 2013 - 12:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Lighter oil = more power!

Picked up 3hp on an XB from HD 20-50 to Amsoil 10-40, back to back dyno runs.
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Stevenfrye
Posted on Tuesday, June 11, 2013 - 06:04 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I would like to use royal purple oil of 20/50 weight do you all think
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Jdugger
Posted on Tuesday, June 11, 2013 - 07:30 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Oil is like religion.

Don't take what you hear about any of them too seriously and change it often enough, and really any of them will probably do just fine.
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Blake
Posted on Tuesday, June 11, 2013 - 08:43 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Your understanding of engine oil is okay, of religion, not so much.
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Rodrob
Posted on Tuesday, June 11, 2013 - 12:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

uh oh...
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Stevenfrye
Posted on Tuesday, June 11, 2013 - 01:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ok thanks
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D_adams
Posted on Tuesday, June 11, 2013 - 01:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I now feel the need to contemplate braking a little.
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Jdugger
Posted on Tuesday, June 11, 2013 - 01:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Braking in oil or breaking in religion?
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Sir_wadsalot
Posted on Wednesday, June 26, 2013 - 08:12 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Smoke4ndmears-

I'm a little slow, what's going on in the AMA pic there.....and the Attack bike, is that the MotoGP production based prototype wildcard bike?

Jdugger- What oil do you run?
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Jdugger
Posted on Wednesday, June 26, 2013 - 08:19 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

> Jdugger- What oil do you run?

Motul 300V 15-50 in the race bike.

Either Mobil-1 or Amsoil in the B bike, depending on what I have on hand ; )

> I'm a little slow, what's going on in the AMA pic there..

Let's just say Pilsbury just put a Betty Crocker mix in the oven...

(Message edited by jdugger on June 26, 2013)
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