oil n filter change

[sabdyz@hotmail.com]

hi i was just wandering what is the best oil n filter to use in my nc30

i currently use Castrol Power 1 GPS 4T 10W/40 fully synthetic Motorcycle Engine Oil and a k+n oil filter

is there a huge benifit in using fully syn over semi syn?

thanks

[CMSMJ1]

No.

Use 10/40 semi and whatever you want filter wise..

innit

Why you wandering anyways? Just wondering?

[sabdyz@hotmail.com]

loool wanderin wats better about semi to fully??

[CMSMJ1]

lol..

Yeah...well..fully synth is overkill on a moto that is 20yrs old..semi is the shizzle..fo rizzle..

you get me?

It has also (fully synth) been accused of clutch slippage..

I buy lots of their motorex 10/40 when I can get a deal...semi all the way for me. race bike, road bike -the lot!

[superlite]

semi all the way for me. race bike, road bike -the lot!

Full-synth maketh thy clutch slip.

[Neosophist]

This is from Kawasaki forums.

There still seems to be some people on this forum that believe using synthetic oil in wet clutches is a bad thing. In other words they think synthetic is more slippery than petroleum oil and thus, causes clutch slippage. An old wive's tale if I ever saw one...


This was taken from AMSOIL's site. I am a proud user of this stuff

"Many people have the perception that since synthetics are more slippery than petroleum oils (which simple don't reduce friction as well), that wet clutch packs in either their automotive automatic transmission or motorcycle transmission will slip when using "super slippery synthetics". AMSOIL Synthetic Oils are no more "slippery" than petroleum oil. AMSOIL Synthetic Oils simply have a more uniform molecular structure which reduces frictional resistance better than the irregular shape and size molecular structure of a petroleum oil.

Look at it this way. Wet sandpaper removes paint as well as dry sandpaper does. The slipperiness of the water does not impede the sandpaper's ability to function. The same applies to the "slipperiness" of synthetic lubes in wet clutches.

If used dry, the sandpaper is soon filled with paint and no longer works- it slips across the surface without grasping the surface. If kept clean and free of paint, it continues to work. The lubricating/cleaning solution used can be water, soap, oil or any other liquid. The liquid's slipperiness does not affect the performance of the sandpaper.

It is simply not an issue. However, just as rinsing the sandpaper keeps it cleaner longer so it functions better longer, so the AMSOIL Synthetic Oils keeps wet clutch plates cleaner longer so they function better.

AMSOIL Synthetic Oils will prevent deposit buildup on clutch plates, therefore keeping the face clean and able to do its job in preventing slippage.

And, since synthetics are superior cooling agents to conventional petroleum lubes, using synthetics will help wet clutches last longer, too.

Petroleum oils have low resistance to heat and allow varnish and glaze to form on clutch plates, which eventually leads to slippage and increased heat generation and eventually failure of the clutch pack.

Also, AMSOIL motorcycle oils are specifically formulated without any friction modifiers for compatibility with wet clutch packs. AMSOIL ATF lubricants are also designed with specific coefficient of friction values to meet the requirements of each and every specification that it not only meets, but far exceeds.

Now you know the facts. The next time your buddy mentions using AMSOIL Synthetic Oils and Wet Clutches as a potential issue, you can explain to him exactly why it is simply not an issue."

I'm not biased towards other oils but in the case of synthetic oils being used in wet clutches I think synthetics are fine to use in wet clutches. Remember synthetics are no more slippery than petroleum oils. They are just more uniform in various temperature ranges than petroleum oils are, which, in turn, offers more protection.

Car oils contain friction modifiers that can cause clutch slippage, especially in a more worn clutch, they make things slip more easily to improve gas mileage, sythetic oil itself isn't any more slippery.

And while that is AMSOIL's take on the matter i've not had a problem, mainly becuase I don't use it very often becuase it's over-kill for a 20 year old bike that doesn't need it. Did use some once that I got from a clearance sale and had it in the VFR and the XBR with no ill effects.

As long as the oil is designed for motorcycle wet clutch it should be ok. Always best to read the label though and check. But since it is more expensive I dont' recommend it.

The bike was designed for semi-synth though and works fine with it, using fully synth isn't going to give you any noticeable performance increases

[skinnydog0_0]

I have used fully synthetic Castrol power 1 in my RVf and never had a problem. I couldn't argue with what Neo posted from the oil company, but thats because i dont know enough about oil
I guess with a bike that is 20+ years old, they have their own little quirks and thats why we love them

[Neosophist]

I have used fully synthetic Castrol power 1 in my RVf and never had a problem. I couldn't argue with what Neo posted from the oil company, but thats because i dont know enough about oil
I guess with a bike that is 20+ years old, they have their own little quirks and thats why we love them

Catrol Power 1! is that the red stuff? I seem to remember that being what I put in a couple of my bikes when I got it cheap.. did about 5000 miles with it in each no problems.

A relative put some Mobile 1 fully synth 0w-40 car oil in his VFR750 as a stop-gap and it developed clutch slipping befoe..

[skinnydog0_0]

I have used fully synthetic Castrol power 1 in my RVf and never had a problem. I couldn't argue with what Neo posted from the oil company, but thats because i dont know enough about oil
I guess with a bike that is 20+ years old, they have their own little quirks and thats why we love them

Catrol Power 1! is that the red stuff? I seem to remember that being what I put in a couple of my bikes when I got it cheap.. did about 5000 miles with it in each no problems.

A relative put some Mobile 1 fully synth 0w-40 car oil in his VFR750 as a stop-gap and it developed clutch slipping befoe..

Yer thats the stuff, it's like ribena, really nice
I would guess that the 0w-40 car oil is a different molecular (if thats how you spell it) structure so may not be any good for bikes. Also the power from the 750 is more likely to make a week clutch and bad oil seem far worse.
I have very little knowledge of car engines, but don't cars have a different oil in the clutch area of the engine? If they do, i would think that that may be why you shouldn't use car engine oil in a wet clutch bike?