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View Full Version : Urgent question - Bike oil?



justsomeguy
27th August 2007, 16:06
Hi the old bike needs an oil change.

It's done about 4,000kms and the oil looks crap although it's only been in there for 2,XXXkms.

I was advised by the shop to use mineral oil until 8000kms "to help things bed in." (Whatever that means).

Motul was the recommended brand.

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Can someone please verify this?

Off to the shop soon to buy it.

Thanks in advance,
JSG

Cajun
27th August 2007, 16:11
well services on the 1k are 1,6,12,18,24, so where they get the 8 from no idea,

i would say throw synethic now be sweet.

justsomeguy
27th August 2007, 16:17
well services on the 1k are 1,6,12,18,24, so where they get the 8 from no idea,

i would say throw synethic now be sweet.


Thanks C :)

The stuff is rather black...so thought I'd change it for simple peace of mind. The bike has definitely seen at least one trackday with its past owner.

Cajun
27th August 2007, 16:19
Thanks C :)

The stuff is rather black...so thought I'd change it for simple peace of mind. The bike has definitely seen at least one trackday with its past owner.

yeah if ya want just throw minerial in until the 6k then dump it again and put fully in then, really up to you.

I personally don't touch motul either, but thats personal peference, my 600 has always had the same brand oil in since day dot,

jrandom
27th August 2007, 16:20
I recall hearing that T-72 tank engines would typically shed over a kilogram of swarf into the sump within the first hundred or so hours of running time.

Is your motorcycle of Russian manufacture?

justsomeguy
27th August 2007, 16:27
I recall hearing that T-72 tank engines would typically shed over a kilogram of swarf into the sump within the first hundred or so hours of running time.

Is your motorcycle of Russian manufacture?

Is that JRandom'ish for "leave the damn thing alone till its 6k service"??

ManDownUnder
27th August 2007, 16:29
Is that JRandom'ish for "leave the damn thing alone till its 6k service"??

LOL... I'd suggest a mmagnetic sump plug if it doesn't already have one. Dunno about the synthetic vs mineral oils q though. Mineral oil combusts where synthetic doesn't (so readily anyway) hence the drop in smoking when changed to synthetic.

Cajun
27th August 2007, 16:32
if you think its suspect change it, its pretty cheap insurance wise to do that.

i know we change to full sythenic at the 6,000kms on the 600 & 1000

jrandom
27th August 2007, 16:36
Is that JRandom'ish for "leave the damn thing alone till its 6k service"??

Not at all. I was just, you know. Making conversation.

No, I'd say, when in doubt, change the oil.

Even when not in doubt, come to think of it.

Swoop
27th August 2007, 17:44
The stuff is rather black...so thought I'd change it for simple peace of mind.

No, I'd say, when in doubt, change the oil.
To quote Homer: "When it's brown, drink it down! When it's black, send it back!"
He was referring to the Springfield water supply... but oil should be the same - especially when you aquire a new bike and do not honestly know when the oil was changed last.

puddytat
27th August 2007, 20:47
Ive heard that oils dont need to be specifically for "bikes" either,Im using mobil one full synthetic in the r6...some folks say you shouldnt use an oil that has EC on the back anywhere(energy conserving) as it may cause clutch slippage,& some folk have no problems at all

justsomeguy
28th August 2007, 20:06
Ive heard that oils dont need to be specifically for "bikes" either,Im using mobil one full synthetic in the r6...some folks say you shouldnt use an oil that has EC on the back anywhere(energy conserving) as it may cause clutch slippage,& some folk have no problems at all

Yes, you're quite right. EC stuff I've read breaks down or something causing the gears to slip or something...

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Thanks for all your advice guys. Gonna put in Motul 5100 10w 40 for now then chuck it after 1200kms and switch to Motul Factory Line fully synthetic stuff.

Have to wait for Saturday as the shop didn't have the correct filter removal tool yesterday.

JeremyW
28th August 2007, 20:36
I recall hearing that T-72 tank engines would typically shed over a kilogram of swarf into the sump within the first hundred or so hours of running time.

Is your motorcycle of Russian manufacture?

That has to be the single best response I have ever heard.....true genius

don rocard
29th August 2007, 15:46
[I] think this whole oil ting is dumb.Just use whatever but do it regularly and change the filter each time.Did not have synthetic ages ago,just rebuild the bike when it wears out.:woohoo:

The Tazman
29th August 2007, 16:11
To quote Homer: "When it's brown, drink it down! When it's black, send it back!"
He was referring to the Springfield water supply... but oil should be the same - especially when you aquire a new bike and do not honestly know when the oil was changed last.

unless it's Guinness of course :yes:

On a serious note though I have always used synthetic and branded. I would also change the oil filter every time I change the oil even though they say every second change. for the cost of one I just think it's worth the extra protection.

riffer
29th August 2007, 19:29
FWIW I reckon the don't use synthetic argument is completely fallacious.

But I don't have a new bike.

Any oil that conforms to the JASO MA spec should be fine for a bike.

justsomeguy
31st August 2007, 14:09
FWIW I reckon the don't use synthetic argument is completely fallacious.

But I don't have a new bike.

Any oil that conforms to the JASO MA spec should be fine for a bike.

Fully synthetic oil used too soon may damage the bores. Hence it is recommended after 6,000kms. Some head mechanics advocate use after 10,000kms.

jonbuoy
31st August 2007, 14:17
I thought synthetic was only to be avoided until the rings had "bedded" in? Slightly off topic but interestin' none the less:

http://www.tampabaybritishcarclub.com/Tech_Tips/tech_tips.html

james89000
2nd September 2007, 20:49
I do notice, that every say 500km, i have to top up my bikes oil by maybe, 100ml.
Im using semi synthetic, does this just mean its burning it off here and there ?
Or is 100ml excessive, and do you think ive got a leak?
The total oil capicity is around 1100ml

justsomeguy
6th September 2007, 01:50
I do notice, that every say 500km, i have to top up my bikes oil by maybe, 100ml.
Im using semi synthetic, does this just mean its burning it off here and there ?
Or is 100ml excessive, and do you think ive got a leak?
The total oil capicity is around 1100ml

It seems like a lot. How many kms has your bike done? What is your riding style?

Pussy
6th September 2007, 10:21
I have always used mineral oil up to 6000km, then Castrol GPS semi-synthetic after that. The mineral I have used is Spectro 10W40. Best to get modern hard plated bores to bed in before switching to synthetic

james89000
11th September 2007, 20:43
It seems like a lot. How many kms has your bike done? What is your riding style?

Umm, its done 15000km, and being a 150cc, I am usually pushing the engine quite hard.
But never redlining

doc
11th September 2007, 21:02
Hi the old bike needs an oil change.

It's done about 4,000kms and the oil looks crap although it's only been in there for 2,XXXkms.

I was advised by the shop to use mineral oil until 8000kms "to help things bed in." (Whatever that means).

Motul was the recommended brand.

-----------

Can someone please verify this?

Off to the shop soon to buy it.

Thanks in advance,
JSG
WTF , you have over 5000 posts on a bike site, and you ask for advice about oil and question, the advice of a bike shop. Why do you think the oil looks like crap ? 4000km does not make a bike old. People on this site chuck off at the HOG guys cos they only ride in the weeked. The advice to use mineral oil until run in then go synthetic is quite the norm. Some bikes are run in at the first sevice, 8k seems excessive.

justsomeguy
11th September 2007, 21:20
WTF , you have over 5000 posts on a bike site, and you ask for advice about oil and question, the advice of a bike shop. Why do you think the oil looks like crap ? 4000km does not make a bike old. People on this site chuck off at the HOG guys cos they only ride in the weeked. The advice to use mineral oil until run in then go synthetic is quite the norm. Some bikes are run in at the first sevice, 8k seems excessive.

Wassup Doc?

I always ask questions bud, don't ask, don't learn. Just cos someone works at a bike shop doesn't mean they are an expert. If two or three bike shop head mechanics say the same thing, which then gets reiterated by people here who I personally know are really knowledgeable on these subjects, then I know to take the advice. I'm too poor to "test" things.

I am one of those people who only ride on weekends, sunny ones too. I HATE commuting. First I get too much aggressive attitude from people trying to drag race me and swerve in front of me, secondly it wears out my tyres, thirdly I hate riding slowly, fourthly riding a bike that's been custom tuned to nudge 300kmph at 20kmph through Sydney's SHIT:sick: traffic 50kms on straight roads each way to work is a punishment and more expensive than taking the train. I love my bike a bit too much to put it through that.

Used to run Plutoline Semi Synthetic in my older bikes, except my first 250 which did fine on mineral oil. The oil is probably fine but has been through a trackday at least once, just got a few false neutrals and considering I have some tracktime booked I wanted to be ready.

I just want the best product in the bike to make sure it works when I'm on the track, a false neutral coming out of a corner or going into one scares me.....:bye:

justsomeguy
11th September 2007, 21:29
Umm, its done 15000km, and being a 150cc, I am usually pushing the engine quite hard.
But never redlining

Still sounds a wee bit high, but not abnormal.

NSR-Dan
12th September 2007, 13:23
clutch slippage?? bring on the dry clutch i say

justsomeguy
12th September 2007, 13:27
clutch slippage?? bring on the dry clutch i say

Is that something out of the scary world of two smokers?

Drunken Monkey
12th September 2007, 13:36
Fully synthetic oil used too soon may damage the bores. ...

Think that's only true of older engines. Many cars ship with fully synthetic form the factory, e.g. it's well known that Porsche recommend Mobil1 fully synthetic from mile 0. More important to change the oil if it looks dirty than worry about if it's mineral/synthetic/etc... = assuming you are using the correct grade, of course.