Whats a good oil, in your opinion ??

[Quasievil]

Hi, Im out to buy some oil today and am thinking about brands, I hear good things about some and bad things about some, so Im thinking I should ask the masses and see what gives.
Its for the GSXR400 which will be a track and racing bike, so needs to be reasonably good but should I go Synthetic ? semi Synthetic, mineral , Im not sure

Value your comments people

Quasi

[Motu]

Pam's - Extra Virgin...ah,she's a good un,our Pam...

[Dodgyiti]

I would like to say Mobil 1
But it is so expensive that I have never been able to afford to use it

[bugjuice]

how about good ol' chip oil.. can't go wrong.. A mechanic in Manukau told me about it once.. don't know about anything else.

Just remember not to mix synthetic with mineral oil or things go weird..

[Quasievil]

Okay so its smart arse day, nice thanks drunken bums

[Sparky Bills]

I used to use Spectro Golden 10w40 in my gsxr400, But if your racing it, you could use that or Full Synthetic.
But in my opinion..
It ran great on the Golden Spectro.
Not too expensive either. $50 or so for a 4L.
Let us know how you get on.
Martin

[Motu]

Silkolene Pro 4 - I used 10/40 in the XLV750,but have 15/50 for the XT.Ester based and able to handle extreme heat,is attracted to metal so protects cams on start up,that's why I use it in Honda's.I was always worried about how hot the XLV750 ran,but the XT runs even hotter,95 deg at the tank.Air cooled bikes will run hotter than water cooled,off road will run hotter than on road.

In all my years in the trade I have hardly seen any wear on any motor caused by failure of an oil - except in Honda's.Actualy all the dirt bikes of the 80s had massive top end wear...cams,rockers,cyl heads,it was cronic - the cure was synthetics and regular oil changes.

[Blackbird]

Horses for courses!

If you have a wet clutch, Mobil1 full synthetic car oil has an additive which can cause clutch slip with big horsepowers. The Mobil 1 4T Racing fully synthetic for bikes has that particular additive removed. I used fully synthetic for years in all our vehicles but to be honest, its largely unecessary. As a matter of interest, Honda don't recommend full synthetics and I now use Motul semi-synthetic.

Cheers

Geoff

[bugjuice]

If you have a wet clutch, Mobil1 full synthetic car oil has an additive which can cause clutch slip with big horsepowers.

?? why would you use car oil in a bike?? clutch problems etc.. bah, not even worth going thru a list. Didn't think anyone would use car oil..?

and as for big horsepowers, we're talkin about a GSXR400..

[Quasievil]

?? why would you use car oil in a bike?? clutch problems etc.. bah, not even worth going thru a list. Didn't think anyone would use car oil..?

and as for big horsepowers, we're talkin about a GSXR400..

HEY WERE TALKING 59 OF THE FINEST STALLIONS AROUND BUD

Did I just defen a Gixxer ? DAMN

[bugjuice]

HEY WERE TALKING 59 OF THE FINEST STALLIONS AROUND BUD

Did I just defen a Gixxer ? DAMN

I worry about you sometimes.. :sly:

[TonyB]

Been using Castrol R4 Superbike and then Mobil 1 Racing 4T. FZR's are supposed to use oil, but mine (43,000 k) won't use any untill the oil has been in there at least 5,000k. The only reason I only buy the synthetic stuff is because I can get it at trade prices. Lately I have been wondering if it would be better to use a semi synthetic and change it twice as often to avoid the inevitable buildup of crud in the oil...

[Motu]

?? why would you use car oil in a bike?? clutch problems etc.. bah, not even worth going thru a list. Didn't think anyone would use car oil..?

and as for big horsepowers, we're talkin about a GSXR400..

I've used car or truck oils in my bikes all my life...I always wonder why the hell anyone would want to pay extra for the picture of a bike on the label.I only started using Silkolene because of the imagined heat issue.

[bugjuice]

I've used car or truck oils in my bikes all my life...I always wonder why the hell anyone would want to pay extra for the picture of a bike on the label.I only started using Silkolene because of the imagined heat issue.

thought most other oils would bugger up your clutch etc?

[John]

All I can say on the topic is I was running some 'silsumthingorrather' and just had a change to Motul 5100, best gear changes I've ever had, and a much much much less noisey engine (now I can hear the mean rotary type exhaust note at idle!)

Its made shortshifting easier and the engine is just unbelievibly quieter.