well .... another tought came to my head ...

i`m using a 15w50 oil, is it possible that
it is the cause of this problem ?


my country is rather hot ... but maybe i should use
only the 10w40 ....


& one more thing .... anyone can tell me if motol oil
is good for the gs ? i want to use it ...

i like vegie oil....from a deep fat frier


10w-40 is the indicated oil on the engine.....min spec..SG rated

there are bout 100 different answers and oppinions

mine is one of the smart assed ones

I doubt you will get many serious answers on this. :dunno:

This topic has been debated ad nauseum among owners of anything with an internal combustion engine. Search the archives for previous posts. I will summarize for you:

Amsoil is a miracle!
Synthetics are a waste of money you idiot!
I use cheapo Wal Mart oil and it works fine...
Anything besides Mobil 1 will wreck your bike!

Generally what the person is saying is "Whatever I do is best"

The main thing is to avoid friction reduction compounds that will cause clutch problems and change it regularly

I don't go so far as  you use walmart cheap-o oil but I use a quaker state 10-30 in the winter and 10-40 in the summer, as one those hot summer days when I drive in town the engine gets quite warm and the 10-40 will do a little better job in the heat while it will get jelly like in the winter here below freezing.

IMHO the best thing about oil is to remember to change it every 2k miles. If you are consistant w/ this then the synthetics don't offer any more protection..Synthetics are better suited to people who wait till 5kmiles turn over

I use shell rotella 15-40, but only in the hotter months of the year.  I wouldnt use it if it is under 50 degrees, I would then go to 10-40.  If its hotter in your country you may want to go up to a 15-40, I dont think it would hurt anything.  Mobil Delvac is another good oil, along with numerous car oils.  The one thing you need to watch for is if the oil contains any friction reducers or modifiers, they wont work with the clutch.

I've actually been running Mobil devlac 15W-40 down to 25 or 30 degrees F the past few weeks.  Yeah, it would be better for me to run some thinner oil when it's this cold, ie. 10W-40, but I figure as long as I let the bike warm up properly there should be no ill effects.

More on topic, if it's always hot for you, you will probably be ok with 15W-50

Quote from: manofthefieldI've actually been running Mobil devlac 15W-40 down to 25 or 30 degrees F the past few weeks.  Yeah, it would be better for me to run some thinner oil when it's this cold, ie. 10W-40, but I figure as long as I let the bike warm up properly there should be no ill effects.

More on topic, if it's always hot for you, you will probably be ok with 15W-50

in the summer it is very hot, avarege tmp is 38 degrees -c- is
hot enough ... in the winter tmp can get to 13 degrees -c- , so
i`m not sure if i need to change oil at the winter ...

AMSOIL Motorcycle 20w-50 summer
AMSOIL Motorcycle 10w-40 winter

Neither has friction modifiers so they will not harm the clutch.

What is the "best" oil is subjective these days so do a lot of research and draw your own decision. There has been some pretty good articles on motorcycle oil in recent years. If you search this board, we had a discussion on one of the articles (forgot the name of the mag) about a year ago.

Happy riding!