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M12 tranny fluid: how often to change?

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Old 03-25-2012, 05:55 PM
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sothpaw2
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Default M12 tranny fluid: how often to change?

Quick question as above: I don't run a diff or trans cooler, don't get any overtemp messages on the trans using Amsoil. I was going to change the Amsoil ATF in the manual trans but then I only have 1 yr/ 3 events on it.

Am I crazy to change it after 3 events? Is this a waste?

Thanks,

Andy
Old 03-25-2012, 07:10 PM
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C66 Racing
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Andy,
Probably a waste, but I'm pretty conservative on this as well. I change my tranny and diff fluid at about 4 race intervals, which for my past several seasons has been annually. Changing it before my first race on Apr 21-22 and I only did four races last year.
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Old 03-25-2012, 10:20 PM
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CHJ In Virginia
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I don't run a cooler and change my tranny fluid with M-1 synthetic annually. I usually run ten events a year with 6-8 30 minute sessions a weekend. No problems so far ---. It would be a waste to change now, get at least another 3-4 events on it before you do.
Old 03-26-2012, 11:01 AM
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travisnd
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No cooler, change once a year, 6-8 events a year.
Old 03-26-2012, 11:55 AM
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varkwso
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Originally Posted by travisnd
No cooler, change once a year, 6-8 events a year.
But what color fluid do you use?
Old 03-26-2012, 11:58 AM
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travisnd
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When I changed the trans/diff fluid before the February VIR event the trans fluid still looked new. The diff fluid was nasty. I'll probably change the diff fluid 2x a year now.
Old 03-26-2012, 05:58 PM
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froggy47
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Yearly, I like to get the sparkles out & it shifts sooooo nice for a couple of thousand miles.

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