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Chaz34,
don't over think it, 10W30 and 10W40 are both just great in our CBs. The manual suggests that 10W30 is what you need when it's cold 20F to 50F and 10W40 for when it's warmer. I've used 10W30 when it's 100F and 10W40 when it's 50F - bike still works OK.
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In Ontario, where I live and very often ride long distances, I always use Motul synthetic 10W40 + OEM filter =  
This is my choice.
pb
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you know what? we don't realize how lucky we are with only one hole to fill. just go buy yourself a harley and all of a sudden you've got 3 holes to argue about what to put in them! argh!
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(06-14-2018, 10:15 AM)jimgl3_imp Wrote: you know what? we don't realize how lucky we are with only one hole to fill. just go buy yourself a harley and all of a sudden you've got 3 holes to argue about what to put in them! argh! Are they making Harley’s in Utah now?
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(06-14-2018, 10:28 AM)KiowaEagle_imp Wrote: (06-14-2018, 10:15 AM)jimgl3_imp Wrote: you know what? we don't realize how lucky we are with only one hole to fill. just go buy yourself a harley and all of a sudden you've got 3 holes to argue about what to put in them! argh! Are they making Harley’s in Utah now? Are they making Harley’s in Utah now?
Not Utah. And not Kansas City any more. Just York, PA. And India. 
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(01-07-2018, 09:49 PM)jedd_imp Wrote: When I 1st bought my bike, it came w/ the Honda GN4 10w-30 and honda filter.
about 1k miles later, TX summer heat was in full swing. And it was at that time that my motor started telling me very subtle things in which I wasn't hearing before. Shifting felt notchy, and I could hear it clunk loudly from gear to gear through my helmet. As a result, I was starting to think that I'm also hearing some gears whining while throttling up and down. I really couldn't tell for sure.
Then one day, I started it, and FOR SURE!- heard a new noise that sounded like cam chain noise. Like the cam chain is rubbing against the chain guide or against the side case. Well, long story short, I went with a thicker oil b/c it's just too darn hot down here to run 10w-30. And, one nice outcome is that the weird chain noise has never come back again.
So this is what I've been using for the past 1.5 yrs,
![[Image: 0dedd5aea5f7554faf173f6a3ddb9258.jpg]](https://cb1100forum.net/forum/uploads/imp/0dedd5aea5f7554faf173f6a3ddb9258.jpg)
Yes, I could have bought the same viscosity in a m/c oil, but
I've had about 5 yrs of legacy data on this oil used in another m/c, and it's
held up unbelievably well. Far better than the M/C specific Bel-ray synthetic 10w-50 previously used in that m/c.
Also, this article I read:
http://www.ducatimeccanica.com/oil.html
reinforced my thoughts that there's more marketing than real data
to support a m/c specific oil. In addition, m/c oil has a HUGE markup. Dealers get them @ 40-50% below list price. So, when I pay $8-$10 a qt for m/c oil, am I getting 2x better protection than the car oil @ $4.50-$5/ qt?
I'm not advocating for anyone to go ahead and use what I'm using.
This works for me, so you got to decide what oil you're going to get w/ your money.
I'm just saying what's on my mind, really. 
Was checking to see what my Walmart next door (literally) has in stock, and apparently Mobil 1 makes motorcycle-specific oil ... costs more though, at $9-something a quart.
And then there's Amazon with free shipping on this 4-quart jug of Pro Honda.
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(06-26-2018, 12:00 PM)zbillster_imp Wrote: (01-07-2018, 09:49 PM)jedd_imp Wrote: When I 1st bought my bike, it came w/ the Honda GN4 10w-30 and honda filter.
about 1k miles later, TX summer heat was in full swing. And it was at that time that my motor started telling me very subtle things in which I wasn't hearing before. Shifting felt notchy, and I could hear it clunk loudly from gear to gear through my helmet. As a result, I was starting to think that I'm also hearing some gears whining while throttling up and down. I really couldn't tell for sure.
Then one day, I started it, and FOR SURE!- heard a new noise that sounded like cam chain noise. Like the cam chain is rubbing against the chain guide or against the side case. Well, long story short, I went with a thicker oil b/c it's just too darn hot down here to run 10w-30. And, one nice outcome is that the weird chain noise has never come back again.
So this is what I've been using for the past 1.5 yrs,
Yes, I could have bought the same viscosity in a m/c oil, but
I've had about 5 yrs of legacy data on this oil used in another m/c, and it's
held up unbelievably well. Far better than the M/C specific Bel-ray synthetic 10w-50 previously used in that m/c.
Also, this article I read:
http://www.ducatimeccanica.com/oil.html
reinforced my thoughts that there's more marketing than real data
to support a m/c specific oil. In addition, m/c oil has a HUGE markup. Dealers get them @ 40-50% below list price. So, when I pay $8-$10 a qt for m/c oil, am I getting 2x better protection than the car oil @ $4.50-$5/ qt?
I'm not advocating for anyone to go ahead and use what I'm using.
This works for me, so you got to decide what oil you're going to get w/ your money.
I'm just saying what's on my mind, really.
Was checking to see what my Walmart next door (literally) has in stock, and apparently Mobil 1 makes motorcycle-specific oil ... costs more though, at $9-something a quart.
And then there's Amazon with free shipping on this 4-quart jug of Pro Honda.
Hello Fellow Texan!! I'm currently running the Mobile 1 Racing 4T (AutoZone has it too). The bike FEELS smoother and shifts better. I did have my first oil temp alert pulling into my garage yesterday which made me a little nervous...
J
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Are you sure it is the oil temp light? Oil would have to be 266F. If it did come on I think you are the first to report it happening.
Did the check engine (MIL) come on?
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![[Image: 6cf657634e7a2b88a5ed1032ee6bf3ae.jpg]](https://cb1100forum.net/forum/uploads/imp/201807/6cf657634e7a2b88a5ed1032ee6bf3ae.jpg)
Needed a break while studying electrical diagrams for signal....
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late chiming in but made my decision and " HOPE " i can pass on the best deal I found.
my CB 1100's oil looked clean at 2200 miles when i got my bike but i changed it to Honda's semi synthetic and also the next change . now at 7000 miles i will do the 4th oil change and go to 10/40 Mobil 1 synthetic motorcycle oil . will also go synthetic the 1st oil change for my Valkyrie which is at 4000 miles so i ordered 9 qts for $89.73 from Walmart which was the best price i could find and 2 day free shipping.
will stay with Honda filters
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