Time for my first oil change - K-Bikes.com - Excellence in Motion
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post #1 of 12 (permalink) Old May 22nd, 2008, 10:04 am Thread Starter
 
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Time for my first oil change

I've put my first 3000 miles on my 03 GT since I picked it up from the dealer. Now I am wondering what oil to use. I know this is a redundant thread, I've searched the forum looking for previous posts... but I havnt found any specifics about what oil people are running. I know I want to run a high-performance synthetic, but what brand would you suggest?

Thanks, Josh
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post #2 of 12 (permalink) Old May 22nd, 2008, 11:48 am
 
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Josh,
Say no to the synthetic oil. The GT engine takes a long time to fully break in and needs dino until approximately 20,000 miles. I switched to syn at the 18K check. The rear end and drive train an take syn at any time.

Regarding oil, I used the BMW 20w-50 oil, but some stay with the 10w-40. Any good quality motorcycle oil would be suitable.

Check out http://www.webbikeworld.com/motorcycle-oil/ for a good oil discussion, along with http://www.bobistheoilguy.com/ for the definitive oil info source.
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post #3 of 12 (permalink) Old May 22nd, 2008, 12:43 pm
 
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Manage the temperature viscosity spread for your crankcase oil

Quote:
I used the BMW 20w-50 oil, but some stay with the 10w-40. Any good quality motorcycle oil would be suitable.
Bear in mind, it is my understanding (someone check me if I'm wrong) that the larger the viscosity temperature spread, the more "carbonization" that occurs in the engine (due to the additives needed to obtain the temperature viscosity spread). In the case above, the viscosity spread is equal; but it could be as bad as 5W-50 which would only be needed in extreme cases.

YMMV

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post #4 of 12 (permalink) Old May 22nd, 2008, 5:28 pm
 
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Bel-Ray Total synthetic superbike oil 10W-50
It runs about $15 per quart
Nothing better
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post #5 of 12 (permalink) Old May 22nd, 2008, 5:41 pm
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lET THE MOTOR BREAK IN FIRST!!!.....aND THEN AROUND YOUR 3RD OR 4TH CHANGE THEN GO TO SYN OIL.....i USE 20W 50 CASTROL SYNTEK WITCH IS A BLEND......58000 MILES NO LEAKS NO BURN....BUT ABOVE ALL BREAK IN THAT MOTOR FIRST....AFTER THE FIRST "EASY MILES"...i CANT REMEMBER WHAT THAT WAS....BUT AFTER THAT BRING IT UP HIGH AND DROP IT DOWN QUICKLY IN THE RPM RANGE FOR ANOTHER NUMBER OF MILES THAT I CANT REMEMBER.....(OLD AGE)....PLENTY OF POST IN HERE ABOUT THAT.....IF I REMEMBER RIGHT......(DOH!)
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post #6 of 12 (permalink) Old May 22nd, 2008, 6:16 pm Thread Starter
 
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Thanks for the advice so far... My original post may have been deceiving, I bought the bike used, and it has just under 10,000 miles now. If I understand right you folks are saying I need to stick with standard dino-oil for another 10,000 miles?
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post #7 of 12 (permalink) Old May 22nd, 2008, 8:54 pm
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Dyno for another 10000 would be good...or even 7000...as long as you break it in good..
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post #8 of 12 (permalink) Old May 23rd, 2008, 5:54 am
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I switched to synthetic at my 12k service interval and have had no problems. Be sure no matter what you put in that the grade does not exceed SG or SH which is specified by BMW. Most every oil you would find in an auto parts store is grade SL which is not suitable for you engine.


'03 K1200GT

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post #9 of 12 (permalink) Old May 23rd, 2008, 6:58 am
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Erl

I run 20w-50 Mobil Synthetic. I waited until 20,000 thereabouts...............feed that damn moose already.

Jim S.
* Everyone crashes. Some get back on. Some don't. Some can't.
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post #10 of 12 (permalink) Old May 23rd, 2008, 7:29 am
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go syn!!!!!

dont listen to all the fears about synthetic oil. my '06 bmw 330i had syn from the factory. bmw doesnt even want to see the car for first oil change until 15k miles. tolerances are a lot tighter now even from the factory. i use mobil 20-50 pure syn, and would never go back. it's just a superior technology.
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