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  #1  
Old 21 Jul 2011
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Mixing engine oil?
Ok Here's the thing. I just transported my BMW1200GS by air and the oil was drained. As soon as I got it out of the crate I poured in 10/40 engine oil. I usually use 20/50 but couldn't find any. Then I rode the bike (I've only done about 30 miles) . All good so far. But then I got thinking. I didn't change the oil filter and I assume there was some (20/50) oil in there so I've kind of mixed my oil.

Is that a problem? Should I change the whole thing again AND the filter (I hadn't chanegd the filter because it had only done 2200 miles) or is it Ok to mix a little?
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Old 21 Jul 2011
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Motor oils are compatible: different weights, different brands, synthetic, dino. And especially, any motor oil mixed with any other is better than not enough oil. I've been doing it for years with no adverse effects and all the 'professional' opinions I've read say the same.

No problem. Go ride.

..........shu
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Old 21 Jul 2011
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Yeah... mixing a 10/40 and a 20/50 will just make a 15/45 !! Probably !

It's fine anyway. Ride on.
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Old 22 Jul 2011
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On any other bike it would be fine ,but this is a BMW ,give it the wrong oil and it will sulk and throw out the final drive in a huff .
Happens all the time !
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Old 22 Jul 2011
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Quote:
Originally Posted by Dodger View Post
On any other bike it would be fine ,but this is a BMW ,give it the wrong oil and it will sulk and throw out the final drive in a huff .
Happens all the time !
Oh, you don't know what you are talking about, this only happens the other way around, i.e. pouring heavy weight oil on top of light weight oil...
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Old 22 Jul 2011
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Thanks everyone. I figured as much but just wanted some reassurane.

Not worried about the final drive I've already had to replace that once!

I'm off for a ride
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Old 22 Jul 2011
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Originally Posted by Dodger View Post
On any other bike it would be fine ,but this is a BMW ,give it the wrong oil and it will sulk and throw out the final drive in a huff .
Happens all the time !
BMW does actually stand for "BRING ME WRENCH" !! In my experience
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Old 22 Jul 2011
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I thought it was Bring My Wallet
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Old 22 Jul 2011
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Originally Posted by Lonesome George View Post
Ok Here's the thing. I just transported my BMW1200GS by air and the oil was drained. As soon as I got it out of the crate I poured in 10/40 engine oil. I usually use 20/50 but couldn't find any. Then I rode the bike (I've only done about 30 miles) . All good so far. But then I got thinking. I didn't change the oil filter and I assume there was some (20/50) oil in there so I've kind of mixed my oil.

Is that a problem? Should I change the whole thing again AND the filter (I hadn't chanegd the filter because it had only done 2200 miles) or is it Ok to mix a little?
...serious question.
That engine should be possible to run on either viscosity... 10/40 in less warm climate and 20/50 in hot climate.
You need not to worry at all -

Should you by chance fill SAE50 (straight oil) and plan to drive in my winter-climate,... then it would be smart, clever, intelligent, -moneysaving- to change to a mulitgrade 10/40 or 0-40
But that's another story
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Old 23 Jul 2011
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you are ALL WRONG -
BMW , according to the Bavarians (my ex is Bayerin) stands for :
Bayrisches Mist Wagen....well you know Bayrisches means Bavarian, and Wagen means vehicle............so what does Mist mean in German ??



Manure.............



Zig mit der 83 R100RT shit bucket
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Old 23 Jul 2011
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Originally Posted by Zigeuner53 View Post
BMW , according to the Bavarians (my ex is Bayerin) stands for :
Bayrisches Mist Wagen....well you know Bayrisches means Bavarian, and Wagen means vehicle............so what does Mist mean in German ??



Manure.............



Zig mit der 83 R100RT shit bucket
Or "Bring Mir Werkstatt"

Or "Bring Mir Werkzeug"

Werkstatt = workshop
Werkzeug = tools

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