Castrol oil.

[Gerrard]

I've just had my bike serviced by a big Honda dealer in Malaga as specified by the service book. They asked me what oil was in it and I said I didn't know but I would like Castrol GP semi synthetic.
I went to get the bike and the bloke at the workshop handed me a container with Castrol GPS which I believe is a fully synthetic oil and in doing so he has knocked my next service back from 12,000k to 18,000k.. as far as I could make out he was telling me that the Castrol GPS was the best you could get and would last longer between services... for those English speaking amongst us.. wot's the difference in performance of synthetic and semi??
Cheers Paul

 

[frenchuk]

specialists experts will be here any second now but synthetic is a NO NO in the bird, Honda specificly specifies mineral or semi-synthetic so who's gonna argue with the engineers who created the bike? A lot of know-it-all that's who!

 

[Wolfie]

honda doesn't recommend full, also how can he moved the service interal????

 

[1200Pete]

Castrol GTS is a semi synthetic oil, it is the same brand we use and seems to work very well for the Bird. :bow:

 

[stan the man]

Castrol GTS is a semi synthetic oil, it is the same brand we use and seems to work very well for the Bird. :bow:

pete,is that GTS or GPS......or both :dunno:

 

[blumeeni]

Synthetic is too slippery on engines with wet clutches causing them to er slip under load
I've been using gps which is a semi for the last 22000m no problem
Shit colour though (red)wish it were blu

 

[blumeeni]

pete,is that GTS or GPS......or both :dunno:

gps gts you'll get what I put in bitch man8um

 

[Cyclops]

Word of warning

Whatever you do dont put CASTER OIL in like dyslexic Bertie did

 

[Codbasher]

I have heard of a little story, someone helping someone else during a service, and someone refilling his bike with old oil.


I will not mention any names
















Well not for less than a tenner anyway. :}

 

[1200Pete]

Castrol GTS is a semi synthetic oil, it is the same brand we use and seems to work very well for the Bird. :bow:

GPS Sorry for the typo :blush:

 

[Gerrard]

Update on the oil saga

Having read the replies on the thread I went into the garage and got the two cans of oil and this is what each one says
1) Castrol Grand Prix:- A high quality semi-synthetic 4 stroke engine oil for motorcycles. Longer protection of engine and transmission parts suitable for all makes of 4 stroke Japanese and European motorcycle engines, running on either leaded or unleaded fuel.
The spec on this can reads SAE 15W-50, JASO MA, API SG
2) Castrol GPS:- Castrol GPS extreme protection is a new synthetic based lubricant for the last generation 4 stroke motorbikes. It assures max performance and superior protection and lubrication at highest temperatures.
The spec on this reads SAE 15W-50, API SG, JASO MA.

So, the spec seems to be the same on both cans albeit in a different order... so chaps do you reckon they are the same oil?? and shall I start panicking yet?
Answers on a postcard.........
Cheers, Paul

 

[skippy]

Having read the replies on the thread I went into the garage and got the two cans of oil and this is what each one says
1) Castrol Grand Prix:- A high quality semi-synthetic 4 stroke engine oil for motorcycles. Longer protection of engine and transmission parts suitable for all makes of 4 stroke Japanese and European motorcycle engines, running on either leaded or unleaded fuel.
The spec on this can reads SAE 15W-50, JASO MA, API SG
2) Castrol GPS:- Castrol GPS extreme protection is a new synthetic based lubricant for the last generation 4 stroke motorbikes. It assures max performance and superior protection and lubrication at highest temperatures.
The spec on this reads SAE 15W-50, API SG, JASO MA.

So, the spec seems to be the same on both cans albeit in a different order... so chaps do you reckon they are the same oil?? and shall I start panicking yet?
Answers on a postcard.........
Cheers, Paul

Different oils.......... the codes on the cans mean that both meet or exceed Hondas requirements as per the genuine Bird workshop manual.

 

[Centaur]

caster

Whatever you do dont put CASTER OIL in like dyslexic Bertie did

I didn't know there was a special oil for furniture casters. Bloody hell mother. What will they do next? Try castor cycleclips. :k Get a spellchucker. seriously I think the devil is in the detail. A synthetic BASED oil is not a fully synthetic oil. It is semi-synthetic. (In my opinion) c7u8

 

[skippy]

I didn't know there was a special oil for furniture casters. Bloody hell mother. What will they do next? Try castor cycleclips. :k Get a spellchucker. seriously I think the devil is in the detail. A synthetic BASED oil is not a fully synthetic oil. It is semi-synthetic. (In my opinion) c7u8

Unless it's Castrol m8.... since about '97 Castrol stopped using polyalphaolefin (the synthetic base) in its "fully synthetic" oils because the found a way of modifying mineral based oils to give similar properties at half the price of fully synth bases, they then label this as fully synth and rip off their customers by charging the same as fully synth. So whats really in your can of semi / fully synth :dunno:

 

[MickB]

My GPS can says "Synthetic Technology" on the front making you think it's fully synth, but when you check the back it does say semi synthetic. They altered the labels a bit back and I had to check it twice to make sure I'd still got the semi .

 

[Wolfie]

from castrol website

Castrol GPS 10W-40
Extreme protection at high temperature
Castrol GPS is an advanced, semi synthetic 4-stroke motorcycle engine oil that offers superior engine lubrication and protection. It maintains a tough layer of protection on the engine and transmission parts, which is important for motorcycles that are ridden hard for extended periods of time. Castrol GPS reacts to changes in engine temperature providing additional protection against thermal and mechanical breakdown.
Extreme protection at high temperature
Superior high speed engine protection which extends engine life
Protection against harmful engine deposits
Excellent gear shift quality
Excellent wet clutch performance
Excellent protection of exhaust and catalyst system
Technical Specifications
SAE 10W-40, API SG, JASO MA
Available in 1 litre and 4 litre packs
Castrol GPS 10W-40 Data Sheet

 

[ianrobbo1]

I heard a story about "someone" who asked if the oil went in the small hole,!! and it was a male!! :}

 

[Gerrard]

Update

Thanks for all the replies.
Read a bit more about it and I think the GPS is no more than an updated version of the Grand Prix oil.
Cheers Paul.

 

[Wolfie]

gps is semi.

gp is dinosaur

 

[Stealth Rider]

Most 10w/40 semi synthetic oils should be alright, but as for fully synthetic don't bother unless you r going to spend most of your time on the track racing