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after how many trackdays do you change your oil?
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  (#1)
mmmm?
 
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after how many trackdays do you change your oil? - July 10, 2007, 07:23 AM

?
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  (#2)
Ling Long
 
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July 10, 2007, 07:47 AM

I do it after each, personally.


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  (#3)
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July 10, 2007, 07:58 AM

Quote:
Originally Posted by YaoMatt
I do it after each, personally.
really? after just one whole day of track?


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  (#4)
Ling Long
 
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July 10, 2007, 08:03 AM

No, when I said one I meant twenty....

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  (#5)
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July 10, 2007, 08:07 AM

Dev normally does the oil in both bikes @ the same time, but I am pretty sure it is after every track day/ race weekend.


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July 10, 2007, 09:18 AM

Quote:
Originally Posted by LadyK
Dev normally does the oil in both bikes @ the same time, but I am pretty sure it is after every track day/ race weekend.
Depends on how many races I run that weekend. I change the filter every other event but change the oil after each event. It's cheap and doesn't hurt anything so it's the least I can do for my bike.

For a trackday I'd only change it out once every 2 or 3 trackdays (if the bike is a dedicated trackday bike running full synthetic)


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  (#7)
Meh
 
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July 10, 2007, 10:01 AM

Depends on what kind of oil you run. If you use crap...every track day.

Good stuff should be good for 2-3 minimum.
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What failure looks like
 
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July 10, 2007, 01:30 PM

I can't speak for trackdays on a bike but in my car I changed it after each day. Look at it this way, normal riding you can get away with a decent oil change interval. When it comes to the track the bike is constantly pulling high revs and enduring extreme temperatures.

Oil only has so much heat resistance. As you add heat oil thins out and doesn't protect as well as oil that has been only moderatly used. Now add in the confusion about fresh oil not protecting that well either and you have yourself a conundrum. What I would do in the car was change my oil before a track day and drive it for a couple days to "break-in" the oil then do my track weekend. After the weekend I would change my oil immediately. This is in a car that only revved to 7500RPM. I don't want to see what bearings soaked in thinned out track oil would look like after constantly sitting at 15,500.

Disclaimer: This is only my rule of thumb that I have adopted after doing research and also spending alot of money fixing a oil related failure in my car.


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.RJ
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July 10, 2007, 02:00 PM

Break in the oil?

Every year we change the oil the morning of a 12 hr enduro at summit point (car, not bike). Never had an oil related problem.

As for changing it every track day.... its overkill, but its your wallet. I'll change it every 3-4 trackdays, with street miles in between. Modern engines and oils are pretty damn good. If you are worried about it, have it tested at each oil change:

http://www.blackstone-labs.com/
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B
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July 10, 2007, 02:40 PM

I change it every 3-4 track days or when I see it becoming significantly discoloured.

I use 0w40 Mobil1 syth. In viscosity tests done by some dude in Berkley Cal. mobil1 retained over 80% viscosity for 6k miles in a old BMW running at 8k, and didn't drop off much beyond it. changing the oil is good for the engine but cost/hassle vs necessity say you can get a lot more out of it than one track day.


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July 18, 2007, 12:11 AM

Usually 2-3 track days
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July 18, 2007, 12:17 AM

i don't know ish... but oil last for a bit. I like the advice. it's the tires you have to worry about


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July 18, 2007, 12:37 AM

Here is the formula I use to determine oil changes after my trackdays:



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July 18, 2007, 07:29 AM

see, I think there is an error in your formula there johnny...

anyway, I change it every 2-3, or 2+race weekend, but definitely between race weekends (well, thats the plan, haven't done 2nd weekend yet), or if it looks grungy.

in street bikes, every 3k, twins and thumpers chew up oil <insert previous marc diatribe regarding bearing loads, speeds, and shear forces>

and yes, I purposefully used spotty punctuation and capitalization in this post


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July 18, 2007, 07:59 AM

I would think to just look at the oil. Nasty oil = change. Seems changing every trackday would be wasteful - surely the oil is good longer than that.

But I what do I know?

:::don't answer that:::


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