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Oil?

 
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CommandoMando
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PostPosted: Sun Feb 20, 2005 7:04 pm    Post subject: Oil? Reply with quote

What type oil should I be using for an 850 commando. The manual recomends 20w 50. Is sythetic better?
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PostPosted: Mon Feb 21, 2005 3:16 am    Post subject: Reply with quote

Be careful.....it lubes real well, but some is too thin and will pass through the seal into the primary case. I stopped using it...but others may give you other advise...wait and see what others write....I don't know everything.
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Keith1069



Joined: 10 Jan 2005
Posts: 239
Location: Hampshire UK

PostPosted: Mon Feb 21, 2005 7:26 am    Post subject: Oil? Reply with quote

I use Mobil 1 15/50 in my 750 Commando and have done for 2 yrs. It sumps more easily than 50 or 20/50 obviously but with a tight pump and reground bottom end (6000 miles now) it's not a problem. Warm-up gets the excess oil back to the tank in a couple of minutes. What I noticed after 3-4k miles is that the magnetic pickup doesn't have many filings on it. With the straight or multi oil there was always a nice little furry Xmas tree of iron/steel. That's not to say there isn't a bunch of bronze and aluminum whizzing around but if I rip open the filter after a 2000 mile change there's nothing in it. Check out www.realclassic.co.uk and look for the Gerry Bristow oil article. he's a Commando owner living in Crete (Hot place) and an ex oil co. employee. Seems to know what he's talking about. Yes it's expensive but engine wear is even more costly. Check out www.nortonclub.com and look in articles for oil and temperature testing. It's an eye opener. Hope this helps
Keith
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Stuart SS



Joined: 21 May 2004
Posts: 270
Location: Australia's Far tropical nth

PostPosted: Mon Feb 21, 2005 11:32 pm    Post subject: Reply with quote

I went down this road as most of us have..

I settled for Pentrite oils, after having several conversations with Les Emery at The Norvil Shop in UK.

He told me that they had developed the Penrite product in conjunction with Pentrite oils to work and suit the Norton engine, with their race engines.

Being a member also of classicbike.net, there was a very heated and protracted debate over oils some time back.

I am sure the goils and blokes here with Jerry, have all experienced the same debate.

I know blokes that swear by the synthetic product, in fact a good mate in Melbourne swears by the Mobil I product ..

I have generally always owned GT~ sports orientated vehicles including bikes and cars ~ and always used Castrol GTX.. I know blokes that still swear by GTX ~ GTX GTX~ even today!

I like the Penrite HPR product and am currently usng the HPR 40 which maybe be on the heavy side.. but I am comfortable with. (I simply ildle up and run the bike at a steady pace till I feel the l is completely warmed up ~ some 20 miles.. before I consider giving the bike any degreee of "stick".)
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The Unapproachable Norton Commando

At the end of 1967 the Norton Commando was announced.

The Norton Commando was greeted with a certain amount of scepticism because on first sight the commando appeared to comprise of the old Norton Dominator twin cylinder engine mounted at an inclined angle in a set of new cylinder parts.

It was not realized that the new Norton Commando Isolastic method of engine suspension damped out all engine vibration and produced a machine which had uncanny smoothness for a vertical twin. In due course the critics were silenced and the Norton Commando had the distinction of being regarded as the first of todays so called superbikes. There can be little doubt that the original design concept of the Norton Commando has proved correct, since comparatively few modifications of any real consequence have been made since production commenced during 1968.

Now nearly 40 years later Norton Commando riders like us are a breed of our own, and as far as we are concerned its still more fun to go for a blat on the old Norton Commando, and fast. As a Norton Commando owner and enthusiast, my goal here is to promote and give credit to those who keep the Norton name going.

It is more deserving to give credit to the Commando itself, for after all these years it continues to be respected. The original Commando designers like John Favill are those who deserve the credit for developing this incredible motorcycle.

The Norton Commando Roadster and Interstate of the late seventies, never died. Although the Norton Villiers factory dispersed the tradition lived on. Today Kenny Dreer in the USA is developing the new 952 CC Norton. What a great looking bike this is, and its engineering is still based on the original layout. It will be interesting to see how the new 952CC Norton does in todays tough motorcycle market. One thing is for sure, I would own one if I could afford it.