Fluid replacement

  • 87 Shark
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26 May 2010 18:39 #325 by 87 Shark
Fluid replacement was created by 87 Shark
It's time to rebuild my brakes, new ss lines, redo the calipers,and I was wondering what type of brake fluid to use.I dont plan on driving on the track, but I do plan on drivingthecar.
Also was wondering about the benefits of full synthetic oil? All opinions are appreciated. Thanks, Dave.

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26 May 2010 20:54 #326 by srshaw3
Replied by srshaw3 on topic Fluid replacement

It's time to rebuild my brakes, new ss lines, redo the calipers,and I was wondering what type of brake fluid to use.I dont plan on driving on the track, but I do plan on drivingthecar.
Also was wondering about the benefits of full synthetic oil? All opinions are appreciated. Thanks, Dave.


I haven't heard of any benefit of using just standard DOT 3 brake fluid on the street. You can't really get beyond that level and still retain your license, since threshold braking is frowned on when used on the street, particular if you do it at each corner :)

I believe synthetic oil doesn't break down as quickly, but of course it can still get dirty, so some of the extended drain intervals might not be advisable.

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27 May 2010 09:36 #328 by 928mac
Replied by 928mac on topic Fluid replacement

I haven't heard of any benefit of using just standard DOT 3 brake fluid on the street. You can't really get beyond that level and still retain your license, since threshold braking is frowned on when used on the street, particular if you do it at each corner :)

I believe synthetic oil doesn't break down as quickly, but of course it can still get dirty, so some of the extended drain intervals might not be advisable.


I completely agree with Racer. To use dot 4 over dot 3 brake fluid would give no benefit but does not harm anything.
I pay the extra buck just because, and use dot 4, but will never come close to its tolerance.
I also agree that oil gets dirty and the dirt dose the damage.
Now I think... that synthetic is slipperier and i use it in my 1/2 ton, it has greater heat qualities and will use it in the porsche only for those reasons. :)

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27 May 2010 15:05 #329 by 87 Shark
Replied by 87 Shark on topic Fluid replacement
Thanks for the info. I plan on the dot4 just because and will use synthetic oil. I use it in my truck but keep the change schedule.I find it slipperyer than regular oil, and like the cold start properties.

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29 May 2010 03:57 #330 by Kiln_Red
Replied by Kiln_Red on topic Fluid replacement
To me, the debate on motor oil is like discussing religion or politics. Every person has their own position and reasons. If i'm not mistaken then I believe Porsche recommended any 0W-40 or 5W-40 oil for the engine. I use Mobil-1 15W-50. My position is that I own a very fine automobile that deserves the finest engineered of every additive it may receive. The 15W-50 is a racing quality oil. I don't race. Rarely even drive it hard. My car is a daily driver though. And with that said, it sees some colder temperatures every once in awhile. I am not interested in gambling on 0W motor oil in sub-freezing weather. :)

Can't go wrong with thicker synthetic blends like the Mobil-1 15W-50. That's my believe.

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29 May 2010 19:20 #332 by 87 Shark
Replied by 87 Shark on topic Fluid replacement
My son works at an auto parts wholesaler and gets great prices on most parts. Fluids and maintenance items. Price is cheapcompared to the price of an engine or tranny. Just want the best because the car deserves it. Thanks again for the input.

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29 May 2010 19:45 #333 by srshaw3
Replied by srshaw3 on topic Fluid replacement
My GT is currently running Amsoil 20-50 racing oil :D (because it has a shelf life and the race car is still dissembled)

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