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Author Topic: Engine oil for the cbr 125  (Read 699 times)

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Offline TheBear

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Re: Engine oil for the cbr 125
« Reply #40 on: July 06, 2020, 05:02:52 pm »
I've never really gotten this, and I am in the industry.

Surely ambient temps have little to do with operating temp, assuming the vehicle has a competent cooling system?   I mean a motor will operate at say 100-120deg and the coolant and thermostat will keep it roughly in that range no matter the comparatively small variances in outside temps. 

I have to agree.  I can see that the first number, say 10W can be related to ambient temperature as the engine, its internals, oil and cooling liquid will be at ambient temperature or close to it just before, during and for a small period of time after starting.  I can also understand that for this part, the viscosity is pretty important.
An engine runs hotter on a hot day than on a cold day... fit an oil temp gauge and see for yourself...

The question is, how much hotter?
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Online zacapa

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Re: Engine oil for the cbr 125
« Reply #41 on: July 06, 2020, 05:20:55 pm »
I've been throwing 10W 40 Heavy Duty Diesel engine oil in all my vehicles, cars, bikes, lawnmower etc for the last 20 years. They all seem happy so far with zero problems.

Correction - it's actually 15W 40! I think it's the 5W makes all the difference
« Last Edit: July 06, 2020, 06:22:36 pm by zacapa »
 

Offline VaalBaas

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Re: Engine oil for the cbr 125
« Reply #42 on: July 06, 2020, 05:37:45 pm »
I've been throwing 10W 40 Heavy Duty Diesel engine oil in all my vehicles, cars, bikes, lawnmower etc for the last 20 years. They all seem happy so far with zero problems.

Nou fok jy Blitzer se kop heel rond :lol8: :lol8:
2006 Hp2 # 882 #1555 #1784 - 2008 R1200 GSA -  2009 R1200 S - 1998 R1200 C - 2020 RnineT Pure
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My eertse foutjie KTM RC8 en toe nog n 525 ook
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As ek nie gister gedoen wat ek gedoen het nie, het ek nie vandag geweet wat ek weet(en ek weet nog steeds nie wat ek doen)
 

Offline blitzer

Re: Engine oil for the cbr 125
« Reply #43 on: July 10, 2020, 10:56:29 am »
With covid 19 still having its impacts i had to see where i can squeeze out extra cash for oil, so i went to honda and they had 10w30 in stock, bought it drove back the 5km with the bike, did the oil change. after looking at the amount of oil it seems like it was not full.

So not wanting to ride the bike like that, i scraped another round of coins together and walked to Honda 10km round trip.

At least now i have enough oil for a while, i accidentally turned the sump bolt the wrong way (so strange because i never make mistakes like these ! !) this comes from wanting to be too over cautious !) LUCKILY i did not strip the sump threads. And i got a new crush washer that i used on it. Thanks everyone for the advice, its really been valuable.
 
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