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Honda CB 1300 best engine oil #5366814 03/04/20 06:21 AM
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Taurus77 Offline OP
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Hello everyone, just recently I became the owner of a Honda CB 1300 from 2003. I am preparing the bike for complete control in preparation for the summer season. The bike has 50000km and I don't know what type of oil has been used to date on this bike.
For this model Honda recommends a 10w40 oil but as I live in Sicily where temperatures above 40°C are easily reached in summer. I don't know the lubrication system and the mechanical tolerances of the bearings of the CB 1300 and my goal is to best preserve this fantastic engine (I love this engine). I ask you if you think a 10W60 oil can create problems or excessive wear to this engine.
In my area the most used and easily available oils are Motul 7100 10W50-10W60, Petronas Sprinta 10W50, Bardahl XTS 10W50-10W60, Silkolene Pro 4 XP 10W50-10W60. What do you recommend?
Thanks in advance for the advice you want to offer me.


2001 --- SEAT Ibiza 1.9 TDI 01
2009 --- Alfa Romeo 159 1.9 JTDM 07
2000 --- Piaggio Vespa PX 200 95
2019 --- Honda CB 1300 03
Re: Honda CB 1300 best engine oil [Re: Taurus77] #5366818 03/04/20 06:34 AM
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blupupher Offline
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That is a water cooled bike, right?
No need for a thick oil in that, 10w-40 will be just fine.


'18 Santa Fe: PP 10W30/OEM
'18 Soul: Synpower 5W30/ProGuard
'12 xB: M1 EP 0W20/CQ Blue
'10 Santa Fe: Synpower 5W30/D+
'04 F150: Magnatec 10W30/ST
'02 F150: Magnatec 5W20/D+
'94 VT1100: Peak 15W40/D+
Re: Honda CB 1300 best engine oil [Re: Taurus77] #5366820 03/04/20 06:39 AM
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Trav Offline
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10w60 works very well in these engines, I ran it a CBR1000F, CBR 1000RR and CBR 1100XX for over 240K and the SC24 engine internals measured within new engine limits per OE service manual specs when I did the cam chain.
Castrol RS 10w60 motorcycle oil was the only oil ever used in both of these engines from the first oil change, nothing else ever went in the sump but the 1000F engine is IIRC the foundation for your 1300.

Castrol no longer makes the RS 10w60 but they do make the 10w50 so that is the one I run in the CB Seven fifty a small air cooled around town bike, it holds up well to the heat. I would give it a try.
These engines really do need a thicker oil, these are not low power V2 lumps, the shared sump tears the oil up when subjected to high temps or hard running at Vmax for more than a few km. Honda already made the mistake of specing too thin of an oil for the 900RR back then and quickly changed the spec when their German dealers got littered (literally) with blown engines (one of them was mine).

Last edited by Trav; 03/04/20 06:46 AM.

ASE L1, Master. Deutsch Meisterbrief.
Re: Honda CB 1300 best engine oil [Re: Taurus77] #5366823 03/04/20 06:42 AM
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SR5 Offline
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In my late 90’s Honda, liquid cooled in-line 4, I ran Castrol Edge 10W60 for 10 years and 100,000 km. Sold it running perfect, all original, only tyres / chains and that weak Honda rectifier- regulator.

It too (CBR 600) was spec’d 10W40 by Honda, but due to my hot climate and lack of a good synthetic 10W40 I ran 10W60 instead. Never a problem.

That CB1300 is a nice bike. Have fun and post a picture if you can.


---------------------------------------------------------------------------------
Valvoline DuraBlend 10W40 SN & A3/B4 semi-synthetic + Valvoline V06 synblend media filter
Re: Honda CB 1300 best engine oil [Re: Taurus77] #5366832 03/04/20 06:54 AM
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carviewsonic Offline
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If the cooling system is performing as it should, it will keep the engine at it's correct operating temperature. Make sure the cooling system is clean, has fresh coolant, and that the fan comes on when it should.


'18 Impala
'05 Park Avenue
'03 Park Avenue
'07 Honda Accord
'09 VStar 1300
Re: Honda CB 1300 best engine oil [Re: Taurus77] #5366915 03/04/20 08:55 AM
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Snagglefoot Offline
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Pics?


If you want the job done right......do it yourself.
Re: Honda CB 1300 best engine oil [Re: blupupher] #5366919 03/04/20 08:59 AM
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Taurus77 Offline OP
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Originally Posted by blupupher
That is a water cooled bike, right?
No need for a thick oil in that, 10w-40 will be just fine.

Yes, is a water cooled bike.


2001 --- SEAT Ibiza 1.9 TDI 01
2009 --- Alfa Romeo 159 1.9 JTDM 07
2000 --- Piaggio Vespa PX 200 95
2019 --- Honda CB 1300 03
Re: Honda CB 1300 best engine oil [Re: Taurus77] #5366926 03/04/20 09:09 AM
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Chris142 Offline
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Originally Posted by Taurus77
Originally Posted by blupupher
That is a water cooled bike, right?
No need for a thick oil in that, 10w-40 will be just fine.

Yes, is a water cooled bike.

10w40 is a great choice.


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: Honda CB 1300 best engine oil [Re: Taurus77] #5366946 03/04/20 09:34 AM
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Snagglefoot Offline
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Here are the temp profiles for Catania, Sicily and Houston, Texas. Both places make it to 104 F (40 C) occasionally, but Houston is actually hotter. Perhaps the Texas folks can tell us what to use. smile

First, Catania.

Catania temps.PNGhouston weather.PNG
Then, Houston.


If you want the job done right......do it yourself.
Re: Honda CB 1300 best engine oil [Re: Snagglefoot] #5367076 03/04/20 12:01 PM
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Taurus77 Offline OP
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Originally Posted by Snagglefoot
Here are the temp profiles for Catania, Sicily and Houston, Texas. Both places make it to 104 F (40 C) occasionally, but Houston is actually hotter. Perhaps the Texas folks can tell us what to use. smile

First, Catania.

Great!! cheers


2001 --- SEAT Ibiza 1.9 TDI 01
2009 --- Alfa Romeo 159 1.9 JTDM 07
2000 --- Piaggio Vespa PX 200 95
2019 --- Honda CB 1300 03
Re: Honda CB 1300 best engine oil [Re: Trav] #5367110 03/04/20 12:54 PM
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Taurus77 Offline OP
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Originally Posted by Trav
10w60 works very well in these engines, I ran it a CBR1000F, CBR 1000RR and CBR 1100XX for over 240K and the SC24 engine internals measured within new engine limits per OE service manual specs when I did the cam chain.
Castrol RS 10w60 motorcycle oil was the only oil ever used in both of these engines from the first oil change, nothing else ever went in the sump but the 1000F engine is IIRC the foundation for your 1300.

Castrol no longer makes the RS 10w60 but they do make the 10w50 so that is the one I run in the CB Seven fifty a small air cooled around town bike, it holds up well to the heat. I would give it a try.
These engines really do need a thicker oil, these are not low power V2 lumps, the shared sump tears the oil up when subjected to high temps or hard running at Vmax for more than a few km. Honda already made the mistake of specing too thin of an oil for the 900RR back then and quickly changed the spec when their German dealers got littered (literally) with blown engines (one of them was mine).

Thanks for the information.


2001 --- SEAT Ibiza 1.9 TDI 01
2009 --- Alfa Romeo 159 1.9 JTDM 07
2000 --- Piaggio Vespa PX 200 95
2019 --- Honda CB 1300 03
Re: Honda CB 1300 best engine oil [Re: Taurus77] #5367191 03/04/20 02:54 PM
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BusyLittleShop Offline
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Ciao...
If there is one thing a rider has control of its the viscosity of
their oil... chemically speaking either the 40 or 60 will meet and
exceed your mileage expectations... BUT according to Honda it is best
to use the freer flowing 40 over the slower flowing 60... factory
tested the freer flowing 40 lubricates and cools critical engine
components better than slower flowing 60 oils can. Freer flowing oils
reduce bearing temperatures and sump temperatures compared to slower
flowing 60. Freer flowing 40 can also help increase horsepower and
miles per gallon. Using the slower flowing 60 to lower engine
temperature is going the wrong way because of increase oil drag...

[Linked Image]

Last edited by BusyLittleShop; 03/04/20 02:58 PM.

Larry L
Have a Wheelie NICE day
94 RC45 #2 58,000 on 30 Grade, Currently Mobil 1 5W30 SN
2002 Camaro Mobil 1 5W30
1952 De Havilland Chipmunk



Re: Honda CB 1300 best engine oil [Re: BusyLittleShop] #5367344 03/04/20 05:08 PM
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Trav Offline
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How do they drop at 100c? Shared sump engines water and air cooled get the oil up to operating temp quickly.


ASE L1, Master. Deutsch Meisterbrief.
Re: Honda CB 1300 best engine oil [Re: Taurus77] #5367401 03/04/20 06:25 PM
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alarmguy Offline
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Listen to your owners manual with maybe one tweak to a heavier oil, 20w50 would be fine in 85F degree heat and higher. It doesn’t matter if your bike is liquid cooled, oil temps will still be higher and shifting may suffer with the 10/40.
I would not use a 10/60 under any conditions and in the warmer weather I would avoid a 10/50 and go with 20/50 if that is an option to purchase in your area.
Using a 10w oil serves no purpose where morning temps are at 55 or higher. The 10 will shear faster then the
20 as the spread is greater.
In more moderate colder temps below 75 a 10/40 is fine.

Last edited by alarmguy; 03/04/20 06:31 PM.

14 Road King (current)
08 VStar 1300 Tourer
07 Suzuki C50
Re: Honda CB 1300 best engine oil [Re: BusyLittleShop] #5368642 03/06/20 06:04 AM
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Taurus77 Offline OP
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Thanks everyone for your advice and opinions.
Certainly the oil recommended by Honda does not damage the engine but as a mechanical engineer I would like to understand what is the viscosity limit that best protects the engine. In this discussion we should talk about bearing clearance and section of the crankshaft oil ducts (assuming that the oil pump fulfills its task under normal conditions of use). Certainly a more viscous oil is thicker than a less viscous oil. Motorcycle manufacturers often choose a lower viscosity to comply with the strict homologation standards for CO2 emissions. Bearings tolerances should be known to be sure that a 10w60 oil flows smoothly without obstacles. Personally I think that the increase in temperature and the loss of power are negligible compared to the benefit of having well lubricated metal surfaces.
I hope I managed to make you understand my thoughts on this topic. Searching the net I found this interesting technical article https://www.substech.com/dokuwiki/d...hydrodynamic_friction_of_engine_bearings
Now I have a question for all of you. Can you tell me the typical average clearance value of bearings for four-cylinder motorcycles.


2001 --- SEAT Ibiza 1.9 TDI 01
2009 --- Alfa Romeo 159 1.9 JTDM 07
2000 --- Piaggio Vespa PX 200 95
2019 --- Honda CB 1300 03
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