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Discussion Starter #1 (Edited)
8I always used Yamalube full syn 15/50 on the FJR until Yamaha decided to switch to 10/40. With the FJR sold I find I have 4 quarts of 15/50 left. The shops getting kind of empty of bikes these days, seems the only 2 left are my ‘19 Multistrada and my 999 track bike. As it happens Ducati specs call for 15/50 full syn in the Multistrada specifically Shell. My 2 go to oils are Amsoil and Motul. The Multi uses exactly 4 quarts with a new filter and being as there’s 4 quarts of Yamalube left I got to thinking why not use it in the Multi? But WHOA is this dangerous ground?
Is there any chance of an International incident here?
Am I risking protests and riots inside the engine?
Will I need to seek an audience with the Pope? Confession? Beg forgiveness?
Has anyone done such a thing before?
If you guys think it’s time for intervention I respect your opinions so say so.

Thanks for the help
 

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If you do that, when your out riding and the bike speaks to you, you will no longer understand it.
 

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As it happens Ducati specs call for 15/50 full syn in the Multistrada specifically Shell.
"syn" is not a motor oil performance specification. Any manufacturer (eg: Subaru) specifying "syn" (ain't that cute!) or synthetic motor oil is stipulating an arbitrary parameter.

There is no test suite of superior characteristics for which an oil must meet to be sold as synthetic. All one has to do is go through the motions using synthetic processes in manufacturing. There is no requirement of what one actually makes.

Synthetic processes can produce a superior motor oil, but only if the designer goes to the effort to do so. "Syn" is no assurance the effort was made.
 
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Dunno if I'd use it in the bike. I'm not a "one-off" user, I believe in using what works well over and over. What if it's the best oil on the planet for your Ducati and then you can't get any more anywhere?

Nah, use it in the lawnmower.
 

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In fact there are only 3 full synthetic oils sold in Australia. They are Amsoil,Redline and Purple. All the rest are allowed to use the synthetic name as a result of laws passed in the U.S.A. senate many years ago.
 

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In fact there are only 3 full synthetic oils sold in Australia. They are Amsoil,Redline and Purple. All the rest are allowed to use the synthetic name as a result of laws passed in the U.S.A. senate many years ago.
There were no such laws.

Mobil-1 sued Castrol over Castrol's marketing label "synthetic" on hyper-refined oil. The only court that would hear such a claim was a marketing private court of binding arbitration.

Castrol claimed their product's performance was comparable to Mobil-1. Mobil-1 claimed, "You didn't go through the right motions to manufacture it."

The court agreed with Castrol in saying their product was close enough considering there is no performance specification for a synthetic motor oil. There are no SAE, API, JASO, ECMA, no standards stipulating what an oil must do to be labeled "synthetic".

There are still no performance specifications for a synthetic motor oil. Everything said about synthetic motor oil comes from marketing. There are performance specifications for which nothing but a synthetic motor oil has met, but far from all synthetic motor oils meet.

No respectable engine manufacturer stipulates "synthetic" motor oil because there is no characteristic of "synthetic" that can be legally attributed. Subaru is one who lets their marketing department write the engine motor oil requirement with "synthetic". Was once a good product but I expect things to falter with such ignorant management. Perhaps related to motor oil consumption problems Subaru has had since "synthetic."
 

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Discussion Starter #8 (Edited)
OMG! I was joking around! I was in my shop and did see the Multi sitting there and did see 4 quarts of Yamalube 15/50 and I did think about using it and it struck me as funny putting Yamaha oil in a Ducati.

I do think “full synthetic” may be recommended by some manufacturers for certain bikes. I know Aprilia does for sure, pretty sure BMW does, Ducati does, KTM does, Yamaha does not except for the R1. Because I work at a used bike shop I have to look up what oil different manufacturers want in their bikes regularly.

As to the specifics of synthetic oil that is a whole conversation unto itself. Unless you’re ripping down race engines or preferably endurance racing engines or engines that have gone several hundred thousand miles with 1 oil in them then how would you really know what’s best? I used to use Yamalube because they were the only oil I know of that offered a 100,000 mile guarantee on engines using their oil. Marketing for sure but it sounded good. I think Motul is great oil but choosing between red oil and green oil is too complicated for me. Amsoil is headquartered in Superior, WI has a great reputation and I’ve adopted Wisconsin as my home and that’s reason enough for me to use it. I will not use Mobil 1 because 20-30 years ago a friend who builds race engines had a problem with it. Can everyone clearly see the lack of logic here?

As I’ve said in other threads pick an oil that lets you sleep at night and go ride. I was just wondering how well I would sleep knowing my Ducati had Yamaha oil in it? I mean would Rossi start talking to me in my sleep? Then it would be worth it. Would I hear arguments from my shop in the middle of the night? Would my Multi be tossing and turning with Yamalube in it as if it ate something hard to digest for dinner? Then it wouldn’t.
 

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I've used 20W-50 (various brands) year round for the last 30+ years in a 1995 FZR1000, 1999 R1, 2001 R1, 2006 R1, 2008 R1, 2008 R6, 2008 FJR.

I've yet to have ANY engine issues. Ever.

Ride more/worry less.
 

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OMG another oil thread...... Multi.... multi-grade... seems like a good match to me. Use it.
Exactly. It makes perfect sense.

Honestly, I was happy to see Rotella getting the nod on these forums.
I used/use that stuff in my truck, jeeps, klr, magna, cbr, and lawnmower.
It makes a wonderful cocktail as well. Earthy flavor.
I almost bought a 55gal drum at Sam's once.
Sounds like it'll be going in my fjr as well, even if someone says I shouldn't.
 

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I do think "full synthetic" may be recommended by some manufacturers for certain bikes. I know Aprilia does for sure, pretty sure BMW does, Ducati does, KTM does, Yamaha does not except for the R1. Because I work at a used bike shop I have to look up what oil different manufacturers want in their bikes regularly.
Know full well there are vehicle manufacturers who specify "full synthetic" but I keep hitting home there is nothing to that requirement which can be measured. Just as warranty laws do not allow manufacturers to require one to use nothing but their products to retain warranty. Anything meeting an itemized published industry performance specification may be used, but there is no industry performance specification for "synthetic." Only generalized marketing happy-words.

For example you won't find anything meeting Daimler Sheet 229.51 other than a synthetically manufactured motor oil but there is nothing in the spec stating the oil must be synthetic.
 

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So N4, are you claiming that conventional and synthetic oils are all the same, refined the same and perform the same ? Is that What I’m hearing here ?
 

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Know full well there are vehicle manufacturers who specify "full synthetic" but I keep hitting home there is nothing to that requirement which can be measured. Just as warranty laws do not allow manufacturers to require one to use nothing but their products to retain warranty. Anything meeting an itemized published industry performance specification may be used, but there is no industry performance specification for "synthetic." Only generalized marketing happy-words.

For example you won't find anything meeting Daimler Sheet 229.51 other than a synthetically manufactured motor oil but there is nothing in the spec stating the oil must be synthetic.
You have peaked my curiosity. I basically agree with you. BUT, are you implying that a manufacturer who recommends only synthetic oil that meets XXX ratings cannot deny a warranty claim if you use a non synthetic oil that meets the same ratings?
 

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I used Motul 7000 a coupla times. Expensive but I was leaving it in the bike for a longer than normal trip. Ester added, and that perty red dye. Is not ester synthetic, and wouldn't it be reasonable to assume the oil makers have to have some content of synthetic esters. If it says synthetic on the label, have we been lied to all these years?

I use Amzoil synthetic a lot..... what have I been paying for? Who makes Amzoil's oil anyway?

So many questions, so few answers and zero qualified experts in any oil thread and absolutely there's a bunch of marketing-speak in the industry.
 
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So N4, are you claiming that conventional and synthetic oils are all the same, refined the same and perform the same ? Is that What I'm hearing here ?
There are no contractual differences. There is nothing binding the manufacturer to offer a superior product with the "synthetic" label. There is nothing a "synthetic" motor oil has to prove other than greater-than-refined effort was made during manufacture. There is no requirement for a superior result. This is what I have been saying when I say, "There are no performance standards an oil must meet to be sold as synthetic." Might as well argue which color FJR is the fastest, there is no performance standard required of a motorcycle to be blue, or red, or yellow.

Synthetic manufacturing processes can make a superior motor oil but use of synthetic processes is no assurance of a superior product.

"I use full syn! (sic) Only the best for my engine!" is a statement of ignorance. Is stating willingness to throw money at the problem but no assurance of getting superior product.
 
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You have peaked my curiosity. I basically agree with you. BUT, are you implying that a manufacturer who recommends only synthetic oil that meets XXX ratings cannot deny a warranty claim if you use a non synthetic oil that meets the same ratings?
Yes. Because they can not demonstrate any requirement of performance for being synthetic. For example Ford WSS-M2C946-B1 is a very specific document of performance tests. Doesn't say how the oil must be made only what the oil must do. Not all Mobil-1 meets this spec yet every time Ford mentions this spec they suggest one use Ford Motorcraft Semi-synthetic.

"Synthetic" has no definition other than how an oil is made. That is the result of Mobil-1 vs Castrol. The case was "held" in private court of binding arbitration before the National Advertising Division of the Better Business Bureau.
 

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Discussion Starter #20
I don’t know which oil companies refine their own oil? I know Motorex in Switzerland does.
 
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