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2019 CB300R and Delo 400 XLE 10w30 #5233764 10/08/19 10:57 AM
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Jay Offline OP
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The lab was Western States Caterpillar. Newest test on the left column. Factory fill on the right column.

https://lh3.googleusercontent.com/s...PmSY9HaaF05Nfg0fGE1wWr0XjqfpJq2xFQ=w2400


The only noteworthy thing about the factory fill, IMO, was that it had sheared to a mid 20-weight in only 750 miles. The recommended viscosity is 10w30 and I assume that's what the factory-fill was. Shifting and clutch engagement was significantly smoother with the Delo and stayed smooth throughout the interval. I'm surprised that the Delo, too, sheared to a mid 20-weight; all the more surprised since the starting viscosity, according to the spec sheet, is 11.9 cSt--near the upper range of 30-weight. Despite this, I'm happy with the Delo 400 and I think I'll stick with it. I'm thinking of extending the interval out to 8000 miles. Honda recommends an 8000 mi or 1 yr interval.

Last edited by Jay; 10/08/19 11:05 AM.
Re: 2019 CB300R and Delo 400 XLE 10w30 [Re: Jay] #5233897 10/08/19 01:10 PM
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Chris142 Online Content
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Have you considered a 15w-40?


02 Wrangler Napa high milage 10w40
87 F250 Valvoline 15w40
07 fjcruiser Car lube plus 10w30
Z400 castrol T 10w40
Can am Maveric edge 5w40
57 case tractor Chevron sae30
Re: 2019 CB300R and Delo 400 XLE 10w30 [Re: Jay] #5233940 10/08/19 02:20 PM
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sunruh Offline
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if the left foot likes it why change
its not like you are riding in the winter lol


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Re: 2019 CB300R and Delo 400 XLE 10w30 [Re: Chris142] #5234002 10/08/19 03:34 PM
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Jay Offline OP
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Originally Posted by Chris142
Have you considered a 15w-40?


No. I don't think the 20 weight is a problem. I'm just indicating surprise that the Delo sheared down. In my 50 years of motorcycling, adding new crankcase oil results in markedly smoother shifting, at first, and then the shifting gets notchier and notchier as the miles add up. The shifting was butter smooth the whole length of the interval this time. From a shifting and smooth clutch engagement standpoint, this oil is the best I've tried. I ran Delvac1 5w40 in my VFR, and got excellent wear numbers with it, but it wasn't a standout as far as smooth shifting goes.

Last edited by Jay; 10/08/19 03:36 PM.
Re: 2019 CB300R and Delo 400 XLE 10w30 [Re: Jay] #5234687 10/09/19 09:19 AM
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sunruh Offline
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5w40 losses grades quickly in a shared sump.
and in 2 cases all indicators point to it breaking tranny gear teeth.

i also own a vfr800


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Re: 2019 CB300R and Delo 400 XLE 10w30 [Re: Jay] #5237688 10/12/19 09:50 AM
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alarmguy Offline
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Originally Posted by Jay
...


The only noteworthy thing about the factory fill, IMO, was that it had sheared to a mid 20-weight in only 750 miles. The recommended viscosity is 10w30 and I assume that's what the factory-fill was. Shifting and clutch engagement was significantly smoother with the Delo and stayed smooth throughout the interval. I'm surprised that the Delo, too, sheared to a mid 20-weight; all the more surprised since the starting viscosity, according to the spec sheet, is 11.9 cSt--near the upper range of 30-weight. Despite this, I'm happy with the Delo 400 and I think I'll stick with it. I'm thinking of extending the interval out to 8000 miles. Honda recommends an 8000 mi or 1 yr interval.


It sounds like you have a winner with the Delo. You used it for a few thousand miles and your shifting stayed smooth. You can't ask for more and what most people with shared sumps wish for.
As far as shearing, I dont consider that shearing, you got a 30 weight oil that ends up in the "mid" 20s, technically a 20 after a few thousand miles, that is a good result and no oil will do any better at any price so enjoy your smooth shifting as long as it lasts, once it gets rough, change it, its cheap. If your thinking about running to 8000 miles but want nice shifting, change the oil at 4000, leave the filter for 8000.

BTW, the manufacturer knows the oil ends up as a 20 and its OCI is based with that knowledge.
If you ran in a super hot climate, 15/40 as someone mentions is perfectly reasonable.

5w40 oil does not belong in any motorcycle, more so a shared sump, I have no clue why people do it and the manufacturer does not recommend it.

Last edited by alarmguy; 10/12/19 09:54 AM.

14 Road King (current)
08 VStar 1300 Tourer
07 Suzuki C50
Re: 2019 CB300R and Delo 400 XLE 10w30 [Re: alarmguy] #5238041 10/12/19 07:20 PM
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Bonz Offline
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I would respectfully disagree that no oil would do any better. I have run 10w40 Mobil 1 4T racing in my ZRX 1200 for almost five thousand miles and it sheared out of grade by maybe half a point, and it is a light 40 wt to begin with. So I don't consider that oil is prone to shear.

Mobil 1 20w50 v twin stayed smack-dab in the middle of grade after over 5,000 miles in my most recent ZRX oci. I'm not advocating for 20w50 in the CB300R engine however the 10w40 4T would be worth a try and especially if you extend the oci to the Honda recommended 8,000 miles.

BMW recommends 5w40 in their liquid cooled boxer twins with a shared sump.




Re: 2019 CB300R and Delo 400 XLE 10w30 [Re: Jay] #5238289 10/13/19 07:45 AM
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alarmguy Offline
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^^ Its all good ^^ I will simply restate that the OP is happy with the performance of the Delos oil, I encourage him its a great choice, none proven to be better when it comes wear by anyone posting in here and it is the proper viscosity as HONDA specifies. I dont know about others but I think honda knows what oil should run in its engines and in this case a 10/30 that they know ends up as a oil in the 20s and a "robust" upper range 20s.

Same as BMW requiring a 5/40 (yes I will be more careful making blanket statements on that subject) anyway, BMW knows their oil shears a more then 25% in just 2000 miles or so, in the new boxers. Just like Honda knows the 10/30 will shear to the 20s BMW knows the 5/40 will shear far greater percentage wise then the Delo 10/30.

The OP has a completely different bike as you and your oil goes out of grade too.

Good point on the Mobile 1, same goes for Amsoil. No one is quite sure why those oils do not shear as much BUT to me is also a questionable additive in them to attain that, its also been questioned in the motorcycle press some years back, meaning put those oils in a non shared sump bike like a Harley Touring bike and the oil will actually thicken up a grade, some question if it would eventually turn to sludge in an engine not properly maintained. But again, another moot point, the OP is looking to follow Hondas 10/30 requirement and if it shifts good no reason to look further.

If shifting was concern and he wanted to go up to a 40 that is fine but from what he posts, why?
The grade of an oil and whether it shears or not has nothing to do if an oil is any good at preventing wear in a motorcycle if following the manufacturers recommendation nothing wrong with looking for something that doesn't shear as much and he seems to have found it in the Delo.
Also the 10/30 will shear far, far less then the 5/40 percentage wise and I am sure Honda knows that as well.

Some forget to keep in mind the more heavy the oil, the more hot internal engine parts run, such as engine and transmission bearings. Again, Im not saying going up a grade will do any damage, not at all but the OP is happy with the shifting so I am saying nothing at all wrong with Hondas recommendation of a 10/30 which is more stable with its tight spread. ( I bet Honda knows that too! :o) *L*

Last edited by alarmguy; 10/13/19 07:57 AM.

14 Road King (current)
08 VStar 1300 Tourer
07 Suzuki C50
Re: 2019 CB300R and Delo 400 XLE 10w30 [Re: alarmguy] #5239679 10/14/19 07:38 PM
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Bonz Offline
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Definitely the Mobil 1 20w50 thickens up in the non-shared sump, shows that in about every analysis on this site. I am interested in what the additive or composition of the base oil is that causes this, since you mentioned it. Because Amsoil and Redline do it as well makes me think it has something to do with ester in it? Although I have no idea why ester based oils would do that.

Looks like Redline does a similar thing in cases, along with the Amsoil you mention.

You are spot-on that a thinner oil will carry heat away faster than a thicker oil because it is flowing faster.

I have noticed in the summer months my ZRX 1200 does run hotter by virtue of when the fan comes on in similar riding conditions when running a 20w50 versus a 10w40.

I ran Delo 15w40 in the ZRX for an oci, had a huge dose of boron in it. I see the 10w30 does not. Just an observation. However I do believe boron is a good anti-wear additive through reading I have done on this site. I like the Mobil 1 MC oils because they do have higher boron, and the zinc content is decent as well. Since most wear occurs at startup I am going to stick with the Mobil 1 10w40 moving forward in my ZRX.

Yeah, run what Honda calls for and it's going to be fine, Delo is a very good oil.




Re: 2019 CB300R and Delo 400 XLE 10w30 [Re: Jay] #5239995 10/15/19 08:39 AM
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alarmguy Offline
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^^^ Yeah, I dont get it either, makes me leary of those oils for that reason. Redline too huh. Yet, I guess if you are looking to maintain good shifting for a shared sump bike maybe it makes sense. If need be.

I use Mystic JT8 15w50 semi syn in my Road King and it does not bother me in the least that it is a "lighter" 50 weight when starting off and maybe by the time it gets changed a higher 40.
I rather that for the heat reason then thickening up to a 60. Again, the Road King is not a shared sump and wow, its hot here (90+)in central South Carolina for a solid 4 months a year.

Good observation on the heat and fan on your ZRX 1200.
Many years ago I learned about the heat and bearings and stuff right here in these forums and others.

Im a fan of the Kawi sport bikes and love the sport tourer - Concours. If I had the option of a second bike I would have something like it in my garage. my wife rides with me a lot, sport bikes scare her plus she is the passenger so I am not sure I could blame her and be in her place by sitting on the back of any bike, comfort wise on long trips too. Just bought her the chopped tour back and wrap around backrest this year for her comfort on long trips.
This may sound creepy but she does at times dose off on the back of the bike, if a long trip, we laugh about it, I guess many people do???

Last edited by alarmguy; 10/15/19 08:42 AM.

14 Road King (current)
08 VStar 1300 Tourer
07 Suzuki C50
Re: 2019 CB300R and Delo 400 XLE 10w30 [Re: Jay] #5240026 10/15/19 09:04 AM
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sunruh Offline
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if you do NOT have an oil cooler, where does the heat go from a faster flowing oil?
do you mearly achive heatsoak faster?


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Re: 2019 CB300R and Delo 400 XLE 10w30 [Re: Jay] #5240226 10/15/19 01:26 PM
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bulwnkl Offline
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More to the point, how does one oil flow faster than another through the positive-displacement oil pump?

There’s a difference between _generating_ more heat in a higher-viscosity oil because more power is required to pump it, and _eliminating_ more extant heat.


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Re: 2019 CB300R and Delo 400 XLE 10w30 [Re: Jay] #5241073 10/16/19 08:32 AM
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alarmguy Offline
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^^ not sure about the two posts above this and who the questions are directed at ^^^

But thicker oil will have bearings running hotter.
and ..
Some motorcycle engines, even if they dont have a cooler do have designed into the engine a plate before/above the oil pan that the oil will run down before its dropped into the pan, to help cool the oil down before getting back to the pump and being pumped back to the engine. (Harley Davidson does)

Last edited by alarmguy; 10/16/19 08:34 AM.

14 Road King (current)
08 VStar 1300 Tourer
07 Suzuki C50
Re: 2019 CB300R and Delo 400 XLE 10w30 [Re: alarmguy] #5241833 10/16/19 09:51 PM
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Bonz Offline
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Thicker oil creates higher pressure all else equal in a properly functioning engine. Higher pressure creates more resistance to flow. There is less turbulence within the heavy oil itself thus exposing less oil to engine surfaces to carry away heat. Over the course of time it adds up to quite a difference in total flow with a heavier oil. Less flow equals less oil to carry away the heat. See this link from this site.


https://www.bobistheoilguy.com/forums/ubbthreads.php/topics/4453712/Thicker_oil_for_hotter_ambient

Re: 2019 CB300R and Delo 400 XLE 10w30 [Re: Jay] #5242212 10/17/19 10:48 AM
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That chart was a model, not a test result. The oil pump delivers exactly the same volume of oil regardless the bottle label.

Too, faster flow past any given point in the engine results in less exposure time, meaning less time available to soak up heat. So, a higher theoretical flow rate would carry away a smaller amount of heat at a faster rate. Then you have to dump (reject) that heat from the pan or oil cooler or wherever. It’s a closed system, so flow rate (even if it were different) is neither increasing or decreasing heat transfer apart from momentary transient situations.


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