20-40 Amsoil - Victory Forums - Victory Motorcycle Forum
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post #1 of 52 (permalink) Old 11-06-2015, 05:35 AM Thread Starter
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Default 20-40 Amsoil

So I've tried Victory, Rotella & Klotz oils up until now. Found no issues with any. Didn't find the Rotella to be any better than the victory. The Klotz is a great oil but expensive at about $14.00 a quart so I figured I'd try the new Victory 20w40 Amsoil. I'm no oil analyst but I have been racing & was a mechanic for over 35 years so I have some experience with oils. Generally I have a preference for synthetics but I use the sight sound touch method to make a decision on what I use. Have to say I always thought Amsoil was a good product but not as good as their advertising campaign as they push a little hard for my taste. So...I decided to try the new 20w40 v-twin Victory/Indian oil to see what happened. Have to say I am impressed. Motor is definitely quieter in the valve train which we all know to be an issue with our motors. Also feels like the motor is running cooler than it was before & that doesn't suck. Did try slipping the clutch as well. 6th gear, full throttle, 30 mph. NO CLUTCH SLIPPAGE AT ALL. just thought I'd post what I found as everybody on here try to look out for each other. I know a lot of guys talk about oil bases & full syns. vs partials blah blah blah. All I know is after all the years of using everything under the sun I know what is the same from what's different. Thanks for reading ??
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post #2 of 52 (permalink) Old 11-06-2015, 05:54 AM
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I had three clutch slippage instances this summer. I was using the new Amsoil product you describe as well, put it in at 500 miles. I switched back to Vic fluid at 5000 miles on my XC to see if it changes anything. I Probably won't know till next spring/summer, gonna get cold here soon.

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post #3 of 52 (permalink) Old 11-06-2015, 07:27 AM Thread Starter
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That's odd. Never seen any oil make a clutch slip once in a while. To be clear wasn't recommending any oil just relating what I found
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post #4 of 52 (permalink) Old 11-06-2015, 08:25 AM
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I am just going to repeat what I asked to one of the big boys (Victory Mechanics), I had the chance of getting the cams installed by one of them, and i popped the question about victory oil and Synthetics, and the answers had two takeaways, the first was that he not only recommends victory oil he also recommends other brands of semi synthetic as the path to follow, and he did not recommend to go to synthetics, and the reasoning behind is that with the cams, the ats and the free flow exhaust the engine has more power than stock and sometimes that power mixed with synthetics can make the clutch slips.

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post #5 of 52 (permalink) Old 11-06-2015, 09:04 AM Thread Starter
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I don't disagree & I know Kevinx recommends victory oil & he's way smarter than me about it. Was just relating what I found with my own experience. I have just had cams & a tune done 107/112 is where I'm at. I checked for clutch slip by doing high load/ low rpm & experienced no issue. Was at 30/35 mph. 6th gear about 2000 rpm. There was no slippage on my bike at this time. Not telling anybody what to use or think just sharing my experience.
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post #6 of 52 (permalink) Old 11-06-2015, 06:51 PM
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Default here we go---again!!!

amsoil blends good oils, they are all synthetic BUT not all real man made group IV PAO blends as in the past. surely better than Vic's overpriced semi-syn with 30% group III + the rest being lesser group II or II+ oils. amsoil's 20-40 is a group III mineral oil legally labeled synthetic since 1999!! a group III oil is a severally hydrocracked crude oil product, its cleaner because of this process + has "most" of the waxes + impurities removed allowing better flow, only issue is a 20-whatever is too thick to flow quickly in colder weather. today there are few "real" group IV + V oils that are without a doubt superior in extreme conditions like our hot running air-oil cooled Vics with a shared tranny that chews up-shears the larger quantity of fragile viscosity index improvers required in mineral oils. real synthetic group IV PAO + group V ester MOTORCYCLE oils DO NOT cause clutch issues!!!!!
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post #7 of 52 (permalink) Old 11-06-2015, 07:12 PM
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Why not just mix some 1/2 amsoil and 1/2 triple t or some other dino oil and grown your own.

All motor oils can be mixed. It's a requirement of the government and no manufacture wants to be left out of Government contracts.
As long as you pic a wet clutch compatible oil which there are dozens, you should be good to go, I would think? No??

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post #8 of 52 (permalink) Old 11-06-2015, 08:12 PM Thread Starter
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Wasn't looking to get into that debate at all. Not an oil engineer or trying to be one just a guy who knows what works. And a 20 we. Oil works fine in the cold. Raced stock cars in the northeast for thirty years & ran 50 we. when I was a kid. When the 20-50 came out nobody even wanted to use it cause it was voodoo. Oil weight is specific to the clearances in a motor. Not to what somebody thinks is good. A 1960 engine isn't designed for 0-20 oil & a 2015 isn't designed for straight 50 wt.
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post #9 of 52 (permalink) Old 11-06-2015, 09:48 PM
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Quote:
Originally Posted by Jlvazquez6 View Post
I am just going to repeat what I asked to one of the big boys (Victory Mechanics), I had the chance of getting the cams installed by one of them, and i popped the question about victory oil and Synthetics, and the answers had two takeaways, the first was that he not only recommends victory oil he also recommends other brands of semi synthetic as the path to follow, and he did not recommend to go to synthetics, and the reasoning behind is that with the cams, the ats and the free flow exhaust the engine has more power than stock and sometimes that power mixed with synthetics can make the clutch slips.
Sounds adding a quart of of the Amsoil to 3 quarts of 3 T might work.
It has a bit thicker base, has synthetic properties. Good to go.

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2014 XC 8 ball that no longer stalls
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1982 HD Sturgis
2009 Honda rebel
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1991 gl1500 A w/ Champion Daytona 2+2 sidecar.
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post #10 of 52 (permalink) Old 11-06-2015, 09:59 PM
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If Rotella doubled or tripled the price of their oil people would swear it was the best out there.
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