From: Jim Newton (jnewton@laurel.com)
Date: Tue Jul 08 2003 - 22:54:02 PDT
Hi All...
Ryan is exactly right with his comment on mixing a little water into a
sample of your brake fluid in question.
I couldn't stand it...I had to test it myself. Here is a picture of
the results of mixing water with DOT 3 versus DOT 5...you can see that
the water stays in a blob in the DOT 5, but completely dissolves into
the DOT 3:
http://www.cucv.net/bfluids.jpg
Thanks, Ryan!
>At 6:41 PM -0400 7/8/03, G.R. Baker wrote:
>>How can I tell which brake fluid I have, Dot 3 or Dot 5? It is odorless,
>>not oily, the truck is my M813A1 that was rebuilt by the USMC in 88 at
>>Albany, GA.
>
>Take a bit of the fluid. Put it in a glass. Pour a bit of DOT4 into
>it. Does it mix or does it stay separate? IF it mixes, then its DOT3
>or 4. IF it doesn't, it's DOT 5. DOT 5 is silicone based. DOT 3 is
>Polyalkylene Glycol based.
>
>Another test I belive that works is that DOT 3 and 4 will absorb
>water where as DOT 5 will not.
>--
--Jim "Ike" Newton
o 1984 M1007 CUCV Military Suburban 6.2 Liter (378 CID) Turbo-Diesel Engine 5/4 Ton Cargo Capacity, 4WD
o 1971 M35A2 Military Troop/Cargo Truck "Deuce and a Half" 478 CID Turbo-Diesel Multi-Fuel Engine Air Shift Front Axle 2 1/2 Ton Cargo Capacity, 6WD
See These Trucks at www.CUCV.NET Keyword Searching of 22,000 Electronic TMs at www.MILDOCS.com
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