Full synthetic oil

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Stray
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Full synthetic oil

Post by Stray » Tue Jul 12, 2016 9:31 pm

Hello All,

At the risk of starting another "oil thread", has anybody used full synthetic oil long term in their XJR?

I'm thinking about going that route because some old boys have run Motul 300V in their FJ1200's for years without complaint.

Any true experience with full synthetic amongst our members?

S

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Lampy
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Re: Full synthetic oil

Post by Lampy » Tue Jul 12, 2016 10:32 pm

Most people not all have experienced clutch slip problems on fully synthetic :(
SO MANY LAMPOSTS...........so little time . . . . STUPID PLACE TO PUT A WALL WASNT IT !!!!!
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Re: Full synthetic oil

Post by Stray » Wed Jul 13, 2016 9:32 am

Lamps, that's one of the main things I trying to understand. If synth oil causes clutch slip how come race/drag bikes use it? Their clutches would slip more due to increased power!

Also, these oils are JASO MA rated for wet clutch use. And the manufacturers recommend it (alongside semi-synth) in most bike manuals. Not sure if latest XJRs have it listed?

There's a lot a cr@p online about oils and even the dealers don't always know what they're saying. One in Fife told me yesterday that synthetic oil will cause cylinder glazing! In fact synth oil would STOP cylinder glazing!

Someone who has actually run the stuff long term will know for sure.

S

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Re: Full synthetic oil

Post by bodman » Fri Jul 15, 2016 5:08 pm

I have got Motul fully synthectic in my 2010 model, which was recommended in their book and by my local bike shop. Changed just before Euro fest. 2500 on it and no problems, Apparently the clutch was upgraded on the later models, so I was told :dontknow: may be an issue for the earlier ones. My 2000 model used to slip with semi. The Barnett upgrade sorted that out though.
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Re: Full synthetic oil

Post by Dirkster » Wed May 03, 2017 11:34 pm

A bit late in the day, but..... I've used fully synthetic in my EXUP for around 27,000 miles. At 22,000 it was still pumping out 127BHP at the back wheel. From memory, the clutch did slip a little at about 10,500RPM, but it would grip again as the power started to tail off at around 11,000 to its 12,5000 redline. Yamaha clutches do tend to be a little weak, but the possibility of a little slippage won't stop me feeding my 13 fully synthetic next oil change.
My 13's clutch seems to be suffering from the plates not separating properly when selecting first gear (BIG crunch unless I hold the clutch lever in for 'ages'), so I'm hoping FS will help solve this issue. In the past, I've always Silkolene - but can anyone suggest a suitable (or even better) alternative?

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Re: Full synthetic oil

Post by Lampy » Wed May 03, 2017 11:47 pm

The plates stick because OE plates are paper based material, either hold clutch in and blip throttle (not ideal when you are trying to leave quietly) or fit EBC plates. Gen yam clutches only good for about 20,000 miles with EBC 40,000 :thumbs:
SO MANY LAMPOSTS...........so little time . . . . STUPID PLACE TO PUT A WALL WASNT IT !!!!!
OH DEER !!!!

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Re: Full synthetic oil

Post by Dirkster » Thu May 04, 2017 12:18 am

Thanks for the tip Lampy - I'll definitely give the EBC plates a go as blipping the throttle first thing in the morning with a baffle-less Remus won't go down too well with the neighbours!

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Re: Full synthetic oil

Post by b4cchaplain » Thu May 04, 2017 10:26 am

I have used Penrite full synthetic oil in all of my bikes..... my previous XJR 1200 which my mate has now and still uses Penrite my current 1300 my XVS 1100 and 650 and my VX 1600 I have never had clutch problems the XVS now has 220,000 klms, the XV 310,000 klms the 1200 XJR 150,000 klms only thing is you probably can't get it there it is an Australian oil for Australian conditions......

I have a great write up on oils will see if I can attach it in a thread somehow....
Stay Upright 8)

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Re: Full synthetic oil

Post by b4cchaplain » Thu May 04, 2017 10:31 am

ooops no it was a web site here is the link if anyone has a few hours free to read...

https://bobistheoilguy.com/used-oil-ana ... is-normal/
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Re: Full synthetic oil

Post by b4cchaplain » Thu May 04, 2017 10:49 am

For those who don't read much here is a most important fact he found during his mass analysis of various machines and oils, basically he says use the oil recommended for the engine regardless of it being Dino or synthetic........... don't change it too soon that is a waste of product and don't change it too late as it will brake down beyond its recommended use and life.. He found oils do not change the fact of someone flogging a motor beyond its purpose and use will wear quicker.
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Re: Full synthetic oil

Post by Dirkster » Mon May 14, 2018 12:46 pm

Well I finally got around to fitting some EBC plates (thanks for the recommendation Lampy). Whilst there was no noticeable wear 'n' tear of the original plates, the EBC's definitely separate better - with a significant reduction in first gear crunching, blipping of the throttle etcetera.

That's some serious mileage you've clocked up there b4cchaplain - I've yet to go over to fully synthetic, but I'll definitely be looking into Penrite for my next oil change.

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Re: Full synthetic oil

Post by hairy » Mon May 14, 2018 1:37 pm

Used fully a few times..even 50w 20 fully for when I went to spain/France in ther summer....never had a problem and the engine was smooth and didn't sound like a bag of nails when 38 degrees 8) ...had to change it nearer the winter as it's thick like glue.
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