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9 Oil questions

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Itchy
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Joined: 07 Apr 2005
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PostPosted: 20:40 - 21 Jun 2007    Post subject: 9 Oil questions Reply with quote

not quite workshoppy to go in the workshop area so it goes here.

9 oil questions!


#1 After a messy oil change due to the fact that the CBR holds 3.4 litres of oil and I used my usual oil pan for my NTV only holds
about 2.8 litres and I'd used a smaller oil pan , I changed the filter and redid up the sump plug , and its now been sitting downstairs
with no oil in it the past 6 hours, won't do any harm will it? or wll it?, I can't find a funnel or rather the funnel that I use for oil and don't want to use the kitchen one (I eat stuff made with that!) , so I've left it, is this ok?.

#2 Most motor oil is just recycled used engine oil from council dumps right? true or false? , dude in a shop told me about this I wasn't all that surprised in that the council are making money from this under the guise of environmentalism bloke at shop said he never had this trouble though in that most old oil would go into his GS500 which apparently used petrol and oil at a rate of 5:1. I think I've found a new fave bike shop since this guy seems completely upfront and honest about stuff.

#3 Is motul really a crap brand? , a surprisingly honest bike shop man told me all about it, I only buy Silkolene or Shell, and never use
Motul or HG own brand apparently cus its got the bare min amount of additives, when faced with buying Motul at £25 or Shell at £26
quid I bought shell. I almost thought about buying HG own brand but shop after shop said it was utter crap. Economics and making
money has made them go all evil and cut down on additives.

#4 Oil lasts longer than you think ?, true or false? man in shop said oil will not break down till 8K but sales men say 3K to get volume sales through
which is kind of strange in that on a few bikes (cept the NTV oil always comes out black) its come out pretty much as it went in.

#5 How the bugger do you clean up spilt oil off concrete? , pre CBR was shaft drive , pre Scot oiler it was engine oil on the chain which flinged everywhere
I spilt a fair bit today, and there is a big greasy stain on the concrete floor which i was changing it on.

#7 Engine oil on skin causes cancer was it of quickly true or false?

#8 FSH my arse (regarding the CBR) oil black say like crude oil is bad right what long term side effects can I expect from the CBR due to this neglect?
I've only done 200 miles since buying the bike with all my miles pile'd onto the NTV. (the CBR worries me its oil sight glass doesn't work properly
on the centre stand no oil is visible, and there is no dipstick like the NTV).

#9 Why can't I use fully syth in my CBR600 FX ? , he said clutch slippage, surely its a stressed IL4 engine and semi synth would be
very good for it ? (I've got a 4 litre can of Shell semi synth) I know I can't but the question is why not?

oh BTW I poured some oil onto a nearby patch of grass , it wilted and died within a day regarding my last oil question (fight club)

Any thoughts?

Ta
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Ichy
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Joined: 15 Jul 2005
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PostPosted: 21:16 - 21 Jun 2007    Post subject: Reply with quote

Blimey so many questions Laughing
1 yes fine.
2 Nope only cheap stuff is from recycled
3 Course thats what they would say, not all additives are good.
4 True but only according to the quality of the oil. A number of cars now use sensors to test the oil rather than having fixed intervals for changes, I've seen cars hit 12-15k before the oil service light comes on.

5 Sawdust
6 ?
7 True if exposed for a looooong time
8 Oil can turn black quite quickly, it collects the soot etc from the combustion process. Long term effect ? you might not be able to see the oil because its still clean and it goes past the sight glass. Try leaning the bike away from you while looking at the glass.
9 Sometimes, synth oil can clean some of the residue left by organic oil which is helping seals to seal.
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mr.z
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Joined: 04 Feb 2004
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PostPosted: 21:25 - 21 Jun 2007    Post subject: Reply with quote

7: Not the oil but the nasty chemicals that are created though the reactions going on in the engine, metal deposits and whatnot, these are carcinogenic, mechanics in the past have found themselves with testicular cancer, why? because oil off rags in their pockets seep through.. nasty
Always use gloves if your expecting old oil, not just for that but i know a guy with bad dermatitis that wont go away and its down to working on cars.
New oil afaik isn't a problem, wouldn't do you much good to drink it but is relatively safe.

Also oil isn't totally efficient untill its been in the engine for 2/300 or so miles or more..

A question here

The "bad" addative that causes clutch slip in bikes, the so called "friction inhibitors" have a code, what is that code?
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Ichy
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Joined: 15 Jul 2005
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PostPosted: 21:50 - 21 Jun 2007    Post subject: Reply with quote

Jaso MA means that its been tested to be ok with wet clutches.

Jaso MB means it has friction modifiers added.
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Nath
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Joined: 28 Jul 2004
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PostPosted: 04:29 - 22 Jun 2007    Post subject: Reply with quote

Cement powder is the best thing for clearing up oil on your drive.
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Kickstart
The Oracle



Joined: 04 Feb 2002
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PostPosted: 07:46 - 22 Jun 2007    Post subject: Re: 9 Oil questions Reply with quote

Itchy wrote:
#1 won't do any harm will it?


Nope. Corrosion is the only likely issue, and it would likely take months for it to get past the thin layer of oil on all the internals.

Itchy wrote:
#2 Most motor oil is just recycled used engine oil from council dumps right? true or false?


False, although some engine oil is just refiltered old oil. Far from being "most" though.

Itchy wrote:
#3 Is motul really a crap brand? , a surprisingly honest bike shop man told me all about it


Not sure these days. Certainly used to be nothing wrong with Motul (and it was on sale in the UK long before HG came here).

Itchy wrote:
#4 Oil lasts longer than you think ?, true or false? man in shop said oil will not break down till 8K but sales men say 3K to get volume sales through


Oil doesn't break down. It gets contaminated and goes black. What does break down are the various additives to extend the viscosity. Hence why synthetic oils are longer lasting (they are less reliant on additives to widden the viscosity range).

Itchy wrote:
#5 How the bugger do you clean up spilt oil off concrete?


Good luck. There are driveway cleaners from people like Gunk.

Itchy wrote:
#7 Engine oil on skin causes cancer was it of quickly true or false?


True, but it is used engine oil. Due to the rubbish in it.

Itchy wrote:
#8 FSH my arse (regarding the CBR) oil black say like crude oil is bad right what long term side effects can I expect from the CBR due to this neglect?


Difficult to say. Leave it in there longer and what was 10W40 might become 20W30 (numbers made up), so slower to get oil pressure round the engine when cold and offering less protection under load when hot.

Itchy wrote:
#9 Why can't I use fully syth in my CBR600 FX ? , he said clutch slippage, surely its a stressed IL4 engine and semi synth would be
very good for it


The old synthetic causes clutch slip crap. Just like the stories of synthetic oils causing oil leaks (was true for very early one, as they had a low ester content which otherwise cause seals to swell slightly and so do a better job). The odd oil might cause issues, but if it meets the required specs then it should be no different beyond a likely ability to last longer before breaking down and a higher resistance to extreme conditions (such as heat).

All the best

Keith
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Bendy
Mrs Sensible



Joined: 10 Jun 2002
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PostPosted: 09:16 - 22 Jun 2007    Post subject: Re: 9 Oil questions Reply with quote

Itchy wrote:
#9 Why can't I use fully syth in my CBR600 FX ? , he said clutch slippage, surely its a stressed IL4 engine and semi synth would be
very good for it ? (I've got a 4 litre can of Shell semi synth) I know I can't but the question is why not?


You can use whatever you like.

Mine's run on semi-synth it's whole 40k mile life. Some of that was HG's Motul, but usually Castrol GPS.

Never saw the point of fully synth as semi-synth works fine and is cheaper (you start off mentioning fully then switch to talking about semi half way through the question).

Incidentally, it's still on it's original clutch.


Check the sight glass with the bike on it's wheels, the centre stand tips it forward.
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