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Oil and Filter [message #302079]

Mon, 06 April 2020 21:11

slaz

Messages: 11895
Registered: March 2004
Location: Moved

Karma: 13

(21) Valentino Rossi

So now the sprockets done,what oil would you suggest for a

BMW F650GS 2001 think

Stay Safe Baza Thumbs Up

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Re: Oil and Filter [message #302080 is a reply to message #302079]

Mon, 06 April 2020 21:33

Kermit

Messages: 24110
Registered: June 2003
Location: Yorkshire

Karma: 43

(22) Giacomo Agostini

No idea with BMW's as aren't they a bit odd with their recommended oils although I suspect someone else will be along soon who'll know verbatim what the best oil is Wink

For me, I always tend to opt for a big brand (Shell, Castrol, Motul), 10-40W and if I'm feeling flush, the fully synth although have been known to go for semi

Right now my 929 has Shell Advanced Ultra 10-40W in it but you've reminded me I should change it as although it likely done less than 1500 miles in 2 years, it is 2 year old oil now Sad

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Re: Oil and Filter [message #302081 is a reply to message #302080]

Mon, 06 April 2020 22:03

slaz

Messages: 11895
Registered: March 2004
Location: Moved

Karma: 13

(21) Valentino Rossi

I use Castrol 10w 40 4T last time,seems to do the job,i was just curious really ;-)
As you can tell,i'm on a roll ;-)
Stay Safe Baza

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Re: Oil and Filter [message #302082 is a reply to message #302081]

Tue, 07 April 2020 09:38

Tomthumb

Messages: 731
Registered: January 2016

Karma: 6

(6) Moto1 GP Racer

Tyres next matey Grin

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Re: Oil and Filter [message #302083 is a reply to message #302082]

Tue, 07 April 2020 11:28

Yorkie

Messages: 2575
Registered: August 2003
Location: North Yorkshire

Karma: 12

(8) Moto2 GP Racer

Semi-synthetic or fully-synthetic ???

I'm glad someone has asked that question because I never know which I should be using. I always imagine that full will be better, but I have heard that until the engine has done around 6-8k you should stick with semi. Is that correct?, and if so why?

And what is "ester" synthetic??

It's a real minefield RollEyes

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Re: Oil and Filter [message #302084 is a reply to message #302079]

Tue, 07 April 2020 14:16

Kakugo

Messages: 8092
Registered: August 2003
Location: Throne of Disgrace

Karma: 42

(19) John Surtees

Run of the mill 10W-40 or 15W-50, those old engines aren't really designed for recent light oil like 5W-40 or similar. Not that they'll break down but you may seem some oil consumption even in a healthy engine. And nobody wants to read a "My engine has started using oil!" post. Wink

As a chemist I am saying this: the whole "synthetic" and "mineral" thing is ancient history. In fact I don't even know if traditional mineral or synthetic oil are even available anymore in Europe outside of special orders with Castrol and Motul. think

Watercooled BMW boxers run on synthetic oil from the factory, and I think most Ducati's and Yamaha's do as well. This stuff is mind-boggingly stable.

The only exceptions are ester-based oils, like the Motul 300V: esters break down under high temperatures and pressures far faster than PAO (Poly Alpha Olephines, the basic components of synthetic lubes) so the oil needs to be replaced at shorter intervals. But given the advantages ester-based oils give on very high power engines it's a worthwhile trade. Thumbs Up

As per brands I like Repsol, Motul and Mobil. Castrol and Shell are great but are getting hard to find here.

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Re: Oil and Filter [message #302087 is a reply to message #302084]

Tue, 07 April 2020 15:20

slaz

Messages: 11895
Registered: March 2004
Location: Moved

Karma: 13

(21) Valentino Rossi

Thanks Kak,top advice as usual Thumbs Up

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