Boonetown_imp
First service completed
Thread starter
Is Honda 10w40 ok to run in the cb? Can I alternate between 10-30 and 10-40? Not mix.
10w30 vs. 10w40
- Thread starter Boonetown_imp
- Start date
misterprofessionality
Road warrior
Where I live it's oppressively hot 3/4 of the year, and it's very easy to get caught in gridlock traffic, so i'm a 10w40 full synthetic guy.
peterbaron
Road warrior
^^+1^^misterprofessionality_imp said:
Scotty_imp
Running like a top
See the post titled "Viscosity knowledge"
I'm in SoCal and only run 10W-40. I fear it's still too thin on days like today...
I'm in SoCal and only run 10W-40. I fear it's still too thin on days like today...
Yes to both questions.
Houtman_imp
Road warrior
I use 10/40 because of the warmer weather here in NC , if you mix the two half and half you have a 10/35 , no problem with that.
GoldOxide_imp
Road warrior
Up here in the deep south Ontario Canada in -25C winter and +40C summer 10W40 appears to work just fine on the ol' air cooled CB1100. I never used 10W30 non-synth during summer. It was like water (okay, once it was used).
Ultimately I ended up using 5W40 synthetic.
Ultimately I ended up using 5W40 synthetic.
My two bits, just remember the following : Honda bikes should never run on modern, full synthetic. Summer or winter temps have nothing to do with it.
From somewhere on the internet (I kept it in my files without url):
Car oils have been used up to 1998 as the base for most motorcycle oils. But as the technology in cars evolved, the oils were modified to meet those modern needs. As a result, additives were added and friction modifiers were blended with the oil. Although these modifications were positive for use in cars, they were damaging to motorcycles. This was especially the case with motorcycle gearboxes and clutches. Unlike with cars, motorcycles don’t use a separate oil for the gearbox, causing the clutches to slip due to the friction modifiers. It also could attribute to gearbox pitting (localised corrosion and the formation of micro-cracks). Oil in motorcycles and scooters is required to run under more intense conditions than in cars because it has to endure hotter temperatures as well as higher engine speed and a greater power density. These circumstances subject the oil to significant operating stress.
Our CB requires JASO MA or JASO MA2 oil.
I know you asked about viscosity, but I think this question is secondary to the issue raised above. No doubt, if your bike sees an extreme temperature range between winter and summer (more than 40 degrees ?) you have to address this problem. On the other hand Japan has extreme weather zones, and the user manual states 10W-30 as a house number.
From somewhere on the internet (I kept it in my files without url):
Car oils have been used up to 1998 as the base for most motorcycle oils. But as the technology in cars evolved, the oils were modified to meet those modern needs. As a result, additives were added and friction modifiers were blended with the oil. Although these modifications were positive for use in cars, they were damaging to motorcycles. This was especially the case with motorcycle gearboxes and clutches. Unlike with cars, motorcycles don’t use a separate oil for the gearbox, causing the clutches to slip due to the friction modifiers. It also could attribute to gearbox pitting (localised corrosion and the formation of micro-cracks). Oil in motorcycles and scooters is required to run under more intense conditions than in cars because it has to endure hotter temperatures as well as higher engine speed and a greater power density. These circumstances subject the oil to significant operating stress.
Our CB requires JASO MA or JASO MA2 oil.
I know you asked about viscosity, but I think this question is secondary to the issue raised above. No doubt, if your bike sees an extreme temperature range between winter and summer (more than 40 degrees ?) you have to address this problem. On the other hand Japan has extreme weather zones, and the user manual states 10W-30 as a house number.
Houtman_imp
Road warrior
There are plenty of synthetic MOTOR CYCLE OILS perfectly fine for Honda motorcycles , just do NOT use synthetic CAR oils in our bikes !
Boonetown_imp
First service completed
Thread starter
Thanks for all the input. I’m usually only riding when it’s above 50 (getting older) so 10-40 should be ok.
GoldOxide_imp
Road warrior
That pretty well sums it up:Boonetown_imp said:
* 10W40
* 6 speed is the best
* Any colour but red
mattmcuomo@yahoo.com
Been there
I'm in Southern California, I've always ran Honda oil 10/40. And used Honda filters. Just about to hit 89,000 miles on my bike. Never had a problem...
Sent from my Pixel 3a using Tapatalk
Sent from my Pixel 3a using Tapatalk
peterbaron
Road warrior
That pretty well sums it up:GoldOxide_imp said:That pretty well sums it up:Boonetown_imp said:
* 10W40
* 6 speed is the best
* Any colour but red
* 10W40
* 6 speed is the best
* Any colour but red
^^+1 & white^^
GoldOxide_imp
Road warrior
That pretty well sums it up:peterbaron_imp said:That pretty well sums it up:GoldOxide_imp said:That pretty well sums it up:Boonetown_imp said:
* 10W40
* 6 speed is the best
* Any colour but red
* 10W40
* 6 speed is the best
* Any colour but red
^^+1 & white^^
* 10W40
* 6 speed is the best
* Any colour but red
^^+1 & white^^
Of course, I was only kiddin'.
ALL CB1100s are a thing of greatness.
the Ferret
Road warrior
MMC_imp said:
89K that's awesome!
Good, isn’t it?
emptysea
Road warrior
My contribution to the oil thread.
Picked this up at the bike show last weekend.
Sent from my iPhone using Tapatalk
Picked this up at the bike show last weekend.
Sent from my iPhone using Tapatalk
Does the stuff in the Triumph bottle make you handsome, or is it to be applied only to the faces of the handsome?
widude
Running like a top
I like talking about oil. I also think, 10-40 is just fine, all the more so in the hotter areas. I used to live in Central MS, so I know what Summer hot is.
Not hard to get a ‘motorcycle oil’ these days, even Supertech has some labeled as such. In the Summer I hardly ever allow much of a warmup, though start the drive gently. If cooler I may give it more time.
Not hard to get a ‘motorcycle oil’ these days, even Supertech has some labeled as such. In the Summer I hardly ever allow much of a warmup, though start the drive gently. If cooler I may give it more time.
