Board logo

Oil advice - Hayabusa
b3ngy - 24/2/13 at 06:24 PM

Just wondering what oil people are using in their hayabusa engines??

Its the first time i've had to change the oil so not sure what to use. I believe it should be 10w40 but do I use synthetic or not as I have read some threads about it not being good for the clutch?? slipping etc??

Car will be used for trackdays....any advice appreciated.

Ben

RIE - 24/2/13 at 06:57 PM

For performance bikes, I was always recommended to use a good semi- or fully synthetic oil. Mineral oil was touted as causing clutch slip.

yellowcab - 24/2/13 at 07:02 PM

Castrol Power 1 - 4T - 10W-40 is what I use...

GreigM - 24/2/13 at 07:22 PM

I've been using Silkolene Super 4 10w40 - this stuff:
http://www.opieoils.co.uk/p-846-silkolene-super-4-10w-40-semi-synthetic-4-stroke-motorbike-oil.aspx

my main use is trackdays also, no real problems (that were caused by the oil anyway!)

big_l - 24/2/13 at 08:41 PM

Just to be different I use std Suzuki supplied oil main dealer no best

b3ngy - 24/2/13 at 09:37 PM

Thanks for the advice everyone.

One more question..... how many miles between oil change??

hobbsy - 24/2/13 at 11:25 PM

Another vote for Castrol Power 1 (used to be called GPS) in the correct viscosity. It's a semi synth but some of the fully synths I have seen like silkolene are so thin even when cold they are like water which worries me when it comes to surge. Andy Bates also used to recommend this one but I don't know if its still his current recommend.

In some ways I'd rather go for a mid range semi synth that is just over half the price of a fancy synth and change it more often.

Kong - 15/5/13 at 10:59 PM

quote:
Originally posted by yellowcab
Castrol Power 1 - 4T - 10W-40 is what I use...


Just ordered some of this myself, thanks

bobinspain - 16/5/13 at 07:42 PM

quote:
Originally posted by b3ngy
Thanks for the advice everyone.

One more question..... how many miles between oil change??


MK quote 3,000 miles between oil changes, but if you're 'giving it beans' on a regular basis, then factor that in accordingly. I've just changed my oil after the car (and engine's) first 1,000 miles, due to a leaking oil-cooler hose. (took the opportunity to do so whilst the cooler hoses were off). Clear as a bell, with no residue or signs of contamination. Used 10/40 semi-synth as recommeded by most Busa BEC owners and by the Suzuki dealer here.

rick1962uk - 16/5/13 at 09:04 PM

hi all i have been a bike mechanic working on some top race bikes and we only use a 10w40 semi oil any top brand will do if you go fully we found it would leak though any week point and there are some clutches that dont like it the only good point is you can go flat out from almost cold

as to how many miles just keep an eye on the oil when its had enough it goes black but as a guide i would advise 2-4k onthe road or 2-3 track days

but remember 5lt oil costs £28 an engine costs thousands

b3ngy - 17/5/13 at 07:47 AM

quote:

but remember 5lt oil costs £28 an engine costs thousands


Very true. I completely understand the need to keep on top of oil servicing.

Ended up going for a castrol 10/40w semi.

Thanks for the advice everyone.

Custardpants - 19/5/13 at 07:07 PM

Good choice. If you become tempted to go fully synth my advice is research moly content first - I had to switch away from motul 300v due to bad clutch slip with it - although I preventively changed bits in the clutch at the time, changing to a low moly content oil fixed it - the majority of the silkolene oils have no moly and a higher Jaso compliance, so I think it's a much better make of oil.