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 Estrella Maintenance & Technology
calfungiation Offline

Neuling

Beiträge: 10

26.11.2006 17:08
Which Oil do you use? antworten

Hi there,

Do you guys use semi-synthetic or synthetic engine oil? Is synthetic always the better? Thanks!


Cadfael Offline

ADMIN


Beiträge: 3.202

26.11.2006 17:20
#2 RE: Which Oil do you use? antworten
Hi calfungiation,

Dirk is our mentainance specialist.
I can only repeat what I learnt from him.

Synthetic is worst of all oils for the Estrella!
Synthetic is for modern short stroke motors.
You should use "cheap" normal oil for the Estrella like 10W40 (hope you use the same number system in Hong Kong). I think because the oil film might break down on the long stroke of the Estrella motor when you use synthetic oil. But Dirk can surely explain this better.

CU
Andreas

Dirk the duck Offline

Doppelsternchen

Beiträge: 624

26.11.2006 20:16
#3 RE: Which Oil do you use? antworten
Well, thanks for the flowers, Andreas, but I do nothing else but evaluate expiriences from others and me myself.
There is just one main reason for using NOT synthetic or semisynthetic oil in the engine from the estrella, and this reason is the clutch.

Synthetic oil is more steadfast and more durable than mineral oil.
BUT ... the synthetic oil has a lot of additives which makes the clutch slip. And that means much more scoring for the clutch. I guess it is cheaper to change mineral oil every 3000 or 4000 km than change clutch every few thousand miles.

And it doesn't have to be the most expensive oil you can get. A 10W40 is a 10W40 and it should have the same properties as another 10W40. As a rule the more expensive oils have more additives which makes the oils more durable but a lot more expensive.
So I use in both of my estrellas 10W40 in winter or 20W50 in summer, and I buy the cheapest mineral oil I can get. It is cheaper to change oil every 2500 or 3000 km than using a more epensive oil which costs multiple (as also the synthetic oils do) and is good for 5000 or 6000 km.

calfungiation Offline

Neuling

Beiträge: 10

27.11.2006 12:40
#4 RE: Which Oil do you use? antworten
Hi Cadfael and Dirk,

Thank you soooo much for the information. I have changed my oils twice already, one after 800km and second after 1800km. I used synthetic as "suggested" by the official Kawa dealer here... sigh...does it make the difference that my Estrella is a 2006 model? I guess the engines and clutch are the same through the years?

So i guess I should switch to mineral oil next time... but the thing is I can imagine the dealer would say a lot things to discourage me... since they can make more money on synthetic oil instead of selling me mineral oil...

Cadfael Offline

ADMIN


Beiträge: 3.202

27.11.2006 15:43
#5 RE: Which Oil do you use? antworten

Hi calfungiation,

you surely have a small "owners hand book" / "owners guide" ?!
What does it say? As far as I remember, there is 10W40 as one of the usable oils in it. Have a look. If your dealer says something different, show him your "owners guide".

We don't know the 2006 Estrella, but I don't think that anything with the clutch changed.

CU
Andreas

calfungiation Offline

Neuling

Beiträge: 10

27.11.2006 17:11
#6 RE: Which Oil do you use? antworten

Yes Andreas, I do have the owner's manual which is unfortunately in Japanese...

I found the recommended oil there, it shows a few oils:

e.g.
R4 SJ 10W-40 JASO MA

But I don't understand japanese so I don't know if it's mineral, semi-synthetic or synthetic... does your german handbook recommend mineral oil as well?

Cadfael Offline

ADMIN


Beiträge: 3.202

27.11.2006 19:31
#7 RE: Which Oil do you use? antworten

Hi calfungiation,

this is from a German BJ250C2 from 1997.
I guess these are nearly the same numbers you have.


CU
Andreas

Kelly.Chan Offline

Neuling

Beiträge: 3

11.06.2018 18:01
#8 RE: Which Oil do you use? antworten

Hi there.
Im using fully-synthetic oil Motul 7100 10W50 each 2500-3000km (the oil is still good condition by color when i changed), somebody told me to use expensive Motul 300V with duration abt 5-6000km.
Should i change to cheaper mineral oil like Motul 3100 or Voltronic XM? Does it affects the bike's performance much?

Soulie Offline

Schrauberkönig


Beiträge: 2.232

12.06.2018 19:52
#9 RE: Which Oil do you use? antworten

I don't use synthetic oil and change every 3.000 kms. Including filter.

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