I am currently running Yamalube 4T HD 10W-40 but will change to Motul 300V 10W-50 next summer. What are you preferences for the CP-3 engine?
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Oil Preference for Tracer 9GT/MT-09 CP-3 engine ?
Turd Ferguson
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It seems that prices of specific engine oils differ a lot depending on where you live. My guessing is that you are safe as long as you stay within the specified recommendations, find it hard to believe that one manufacturer can produce an oil that is the best for all engines 🤔. Maybe this high end racing stuff is worse for 'commute engines' than a regular base oil- who knows. I go for the ones that make the gear box and clutch feel nice🏍
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Oy vey an another black gold thread! 🫠
Fair point. As long as it's API service SG type, JASCO standard MA it doesn't matter what you put in and it works for you.
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I can tell you for a fact that's not the case with some bikes I had!
Maybe but these standards are pretty exacting and that's why they exist.
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Been in contact with Castrol asking what oil they recommend for the Yamaha mt 09 2014. They sent me an e-mail with different oil that follow the above mentioned specifications. I also asked if I could run a 5W40 oil during winter, to that I got no answer.
Anyone know if this would cause any damage to the engine?
/Thanks
Anyone know if this would cause any damage to the engine?
/Thanks
Interestingly, Castrol have 5W40 on their recommendations Castrol oils and lubricants for your YAMAHA [4-Stroke] MT-09 (2014-2022),
The lower number preceding W (for winter) is the viscosity index figure at cold start and the higher number denotes the viscosity index figure when the engine is hot.
I don't know where you are in the land of reindeer but when the icicle is dripping from the end of your nose, you might find 5 weight to be better for cold starting and smoothing out the kerrlunk from neutral, cos the oil is "thinner".
I've said before but I changed to a semi synthetic 10W40 in the cold climes of 56N and it greatly reduced the kerrlunk and it is still well within the recommended API/JASCO ratings. That said, the bike is now tucked away in a warm garage until my aging joints can enjoy warmer temperatures and I use my electric MTB for cold weather fun
However, this thread could roll on forever - as someone previously wrote - "Another black gold thread............"
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To say the least! They sent me a Pdf with a lot of options, but no 5W-oil.
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Got an answer from Castrol saying this homepage is for Australia only, and that it differ between countries. Anyone with an Australien manual that can confirm this 5W40 is recommended?
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Found an Australien manual for the 1st gen and one for 3rd gen online and attached them in my mail to Castrol. The corresponding is in swedish but translated it reads:
"Hi, thanks for your answer! We saw the images and understand your concern but we are not responsible for the Australien part, only Europe. Please, we strongly advice you to use the products recommended in the lubricant report we sent you earlier and we do not recommend you use anything not listet there. "
Not sure what to think to be honest. Sticking to 10W-40 for now 😬
"Hi, thanks for your answer! We saw the images and understand your concern but we are not responsible for the Australien part, only Europe. Please, we strongly advice you to use the products recommended in the lubricant report we sent you earlier and we do not recommend you use anything not listet there. "
Not sure what to think to be honest. Sticking to 10W-40 for now 😬
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No. A lower xW number is better for sub freezing temps. It's a rating based on cold cranking tests.
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I get the basic principles of engine oil. But, my thinking is that oil threads like these are percieved as useless because there are to many opinions and no facts. Impossible to draw conclusions. Thats why I contacted Castrol. 🤓
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They're also a company, that's why you got an ass-covering response, lol
What is the lowest temperature you'll be cold starting your bike?
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-15°C
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10W. What I dont get is why a lower W-value would matter at all: If you run say a 0W-40 in Summer instead of a 10W-40 would that do damage?
0W-40 is like water in summer temps (although it depends which summer location you choose. Seems strange that Castrol Oz say a 5W is suitable in a climate mach warmer than Winter in Sweden. My 2c worth is that at temps as low as -15 a 5W would be perfectly acceptable - my 2c worth also says you'll be better on 4 wheels!
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No, it won't do damage. The number before the W is only for subfreezing temperatures. I assumed you knew this, since you said you got the basic principles.
In summer, assuming you don't live in Antarctica, the W number is irrelevant.
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So a lower W-number is always better?
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