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Old November 3rd, 2015, 06:48 PM   #11
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Joined: Jun 2014
From: Boston
Posts: 879

I Ride: hyperstrada 821
Originally Posted by R6chase View Post
That article was the most pathetic thing I've ever read!
I don't even know where to start debunking that much bullshit!
First viscosity retention was (like mentioned) an issue in the 70s, today's car oil has to be much better, but even then in his own test he compared 2 full synthetic car oils to how many synthetic motorcycle oils?? NONE!! The motorcycle oils were a petroleum and a petroleum-blend, one that is OEM for a Harley and one that's OEM for an ancient Magna.
Second our bikes use a wet clutch something car oil would never be expected to take into consideration when blending it's oils, it's takes a tone of friction modifiers and additives to consider a motorcycle oil needs to be a gear oil for transmission pressure additives for the crank bearings and still be thin enough to work in the roller bearings of the top end, what our oil goes through really boggles the mind when you think about it!
Third was something he mentioned at the end but didn't go into enough detail was the filtering he did after the oil was out of the bike and before going into his testing, large particulates, he mentions using centrifugal force for 10 min before testing and never mentions what was removed. I'd be willing to bet more would come from an automotive synthetic then a motorcycle synthetic. Why? Because the blend would be designed with a much smaller oil pump and much smaller passage ways. A large car motor can practically move a marble anywhere in the motor but your ducati simply can't.
I could go on but I think I've made my point, if you want to save $60 a year on oil and risk total failure likely of you're clutch or top end, that's up to you.
Wet clutches are only new to ducati - I think you're being a little excitable.

Some manufacturers choose to get JASO-MA certification, and some don't. It is a reassurance that it's motorcycle compatible, but many that don't get the cert are as well.

Synthetics are far more resistant to loss of viscosity and shearing than the mineral oils that have been used for wet clutch bikes for decades. The 821 is also watercooled so the internals function in a controlled environment.

If you stay away from afore mentioned specialty oils, and use the proper viscosity synthetic - I just don't see the problem. If you want to pay more, then JASO-MA seems to be money in the bank - just not your bank.
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Old November 3rd, 2015, 08:16 PM   #12
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Joined: Jun 2013
From: Santa Barbara
Posts: 147

I Ride: '16 Multistrada
I'm a big fan of Rotella T6. In my opinion, as long as you stay away from oils labeled as being energy cinserving, you won't have a clutch problem. My belief is that you can buy the shittiest oil out there, and as long as you recharge it reasonably frequently you'll be fine.who ever owns a bike long enough to wear the engine out anyway?
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Old November 3rd, 2015, 09:59 PM   #13
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Joined: Jul 2014
From: California
Posts: 1,220

Everything you wanted to know about oil, and more: https://dl.dropboxusercontent.com/u/...eers%20PDF.pdf

Check out page 89 onward for the motorcycle part.
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Old November 3rd, 2015, 11:49 PM   #14
Joined: Feb 2015
From: Inverurie, Scotland
Posts: 30

My car has a wet clutch too. Just saying.
VW group DSG.
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Old November 4th, 2015, 03:57 AM   #15
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Joined: Feb 2014
From: TN
Posts: 294

Originally Posted by appliance821 View Post
Wet clutches are only new to Ducati
No, they aren't. The baby Monster series, the Multistrada line, and the 848, and possibly a few others have had wet clutches.
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Old November 4th, 2015, 04:23 AM   #16
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From: Minnesota
Posts: 545

I Ride: 13' Hyperstrada, 00' M900Sie
Originally Posted by bigfoot View Post
My car has a wet clutch too. Just saying.
VW group DSG.
Yeah, except the oil isn't shared between the DSG and the engine. On modern motorcycles it is. VW can tailor an oil to fit the needs of only the gearbox, JASO-MA oils have to meet the needs of the gearbox, clutch, and engine as well.

You guys have fun with your gambling to save a few bucks.
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