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what oil to use in a freshly built 400bhp cossie

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Old 02-12-2005, 09:28 AM
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r5jame5
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Default what oil to use in a freshly built 400bhp cossie

as above what do you lot think . ive been using castrol rs 10w 60w but heard on here its not the best to use .what do you lot recomend
Old 02-12-2005, 09:44 AM
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big_wig_074
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mobil 1 15w50 or castrol 10w60 is what i used!
Old 02-12-2005, 09:53 AM
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do you know what harvey reccomends . i havent got my car back yet havent heard a thing this week. he must be bizzy . he is doing it in his spare time tho.
Old 02-12-2005, 09:54 AM
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Is this for running in?

If so all the oils mentioned are no good, you want a crap mineral oil
Old 02-12-2005, 09:59 AM
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Originally Posted by chip-3door
Is this for running in?

If so all the oils mentioned are no good, you want a crap mineral oil
Yep I've heard this again and again, but can't for the life of me remember why. Anyway, I'm off to get some popcorn
Old 02-12-2005, 09:59 AM
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its for after ive run it in just getting ready for when its done what do you use
Old 02-12-2005, 10:00 AM
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Originally Posted by Stealth Bomber
Originally Posted by chip-3door
Is this for running in?

If so all the oils mentioned are no good, you want a crap mineral oil
Yep I've heard this again and again, but can't for the life of me remember why. Anyway, I'm off to get some popcorn
It works too well, and the rings dont have enough friction to bed in on the bores.

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Old 02-12-2005, 10:04 AM
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Originally Posted by r5jame5
its for after ive run it in just getting ready for when its done what do you use
any of those above i would be happy with personally, i wouldnt ever go down to a 0/30 or 5/40 like some people do though, its my belief that this is too thin for the bearings on a YB

having never really used a YB in any real anger on trackdays or anything though whilst comparing different oils, my advice is only my opinion and not the result of experimentation, so i would suggest asking Harvey, especially as he is the one who has built it.

or PM oilman and ask him to contribute to this topic??
Old 02-12-2005, 10:05 AM
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yeah,those oils i said were for when its up and running!
Old 02-12-2005, 10:06 AM
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ok thanks guys
Old 02-12-2005, 10:07 AM
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Ryan
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think harvey reccomends shell helix?

not too sure
Old 02-12-2005, 10:09 AM
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mobile1 15w50, matt lewis sells it dead cheap on here as well mate
Old 02-12-2005, 11:00 AM
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Tony Ryan
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Chip ,
I used castrol RS 10/60 at brands a few weeks ago in my RS 500 , after race 2 i noticed a real drop off in oil pressure that i never got with a Motul or Silkolene , i wont be using the Castrol again .
Old 08-12-2005, 02:07 PM
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Run in on a 10w-40 semi (it will be petroleum based) and then change to Silkolene PRO S 10w-50, PRO R 15w-50 or Motul 300V 15w-50

Cheers
Simon
Old 08-12-2005, 02:09 PM
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DaveEscos
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whats better? pro R or Pro S?

oilman, you said yesterday 10L delivered for about Ł60 something quid?


whats your number and ill call you now
Old 08-12-2005, 02:11 PM
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Pro S is better for cold start, other than that they're both sae 50 when hot.

Ł62.99

01209 215164 (Ask for Guy)

Cheers
Simon
Old 08-12-2005, 02:24 PM
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rscozzysie
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i was gunna ask the same question.don't need to now
Old 08-12-2005, 02:41 PM
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Just ordered some oil from Guy, very courteous and professional - cheers!!
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