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What is the time limit for neceary ecental fluids

Hickster

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#1
Every fluids have a time limit and I would like to have a schedule on which ones need changing earlier than others. We all know our motor oil,, duuu,, cause they make us, but the others??
 


Decay

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#2
I did the rear diff at 500 or so and will probably do it every 10k.
They say, the A8 fluid is good to go forever or some crap, I think that stuff needs changed.
The brake fluid, I say once a season at least if you lap and every other if you don't.
I'm thinking the coolant at 20k?
Pulled all this straight outta my ass though I'm sure there will be further input!
 


BULL

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#3
Brake fluid can vary a lot.

If you run DOT4, you should change it out at least every year whether you track or not. (See my wiki page on this).

If you're lapping on a road course, some are bleeding calipers after each session. If you do that enough times, that's like doing a full flush IMO. Although if you're a super aggressive driver, maybe you still want to do a full flush every season? Becomes a judgement call based on experience and money.
 


BULL

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#4
I'll add, if your brake fluid isn't clear, change it!
 


stonewall

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#5
Go by your owners manual service record. Unless you like to burn money.
 


OP
Hickster

Hickster

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Thread Starter #6
Oh boy,,, all 412 pages of the damn thing. Oh well, better than the virus, maybe not. I have read it twice before I bought the car. How come I new moe than the sales people. Dumb asses. Last year I sold a 1996 vette, LT4 with the original wiper fluid in it. Passenger seat never been sat in. Letting a car sit with out or very little use is worse than running the crap out of it. All hoses, belts, fluids, gaskets, rubber pieces, all had to be replaces to sell. Learned a valuable lesson there. Going to get the car out of the body shop, run it a week and have fluids changed. Calipers have come off to repaint so that fluid may be good, or most. Bleed and bleed. Rear end fluid and rad I a tore changed.
 


stonewall

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#7
True, sitting is hard on one. But modern fluids last a long time. Except gas! that sh-t rots in mere month's if not treated.
 




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