T Tourist Joined Sep 22, 2005 Messages 93 Location Malaysia Jun 15, 2007 #1 Hi. The manual calls for DOT3 brake fluid in brakes system. Can I use DOT4 instead? I am assuming I could but would like some confirmation. Thanks.
Hi. The manual calls for DOT3 brake fluid in brakes system. Can I use DOT4 instead? I am assuming I could but would like some confirmation. Thanks.
S Squishy Joined Apr 5, 2007 Messages 289 Location Orillia, Ontario Jun 15, 2007 #3 Any glycol-based fluid will work in your system. That means DOT3, DOT4, and DOT5.1 (or DOT4+ in some cases). DOT5 is silicone-based and will not play nice with the existing fluid.
Any glycol-based fluid will work in your system. That means DOT3, DOT4, and DOT5.1 (or DOT4+ in some cases). DOT5 is silicone-based and will not play nice with the existing fluid.
T Tourist Thread starter Joined Sep 22, 2005 Messages 93 Location Malaysia Jun 16, 2007 #4 The funny thing is, the brake fluid reservoir cap states "ONLY DOT3" whereas the clutch pump fluid reservoir cap states "DOT3 or 4). So the question is: Why "ONLY DOT3" on the brake fluid reservoir cap? btw, mine a Isuzu Trooper 3.1 TDi.
The funny thing is, the brake fluid reservoir cap states "ONLY DOT3" whereas the clutch pump fluid reservoir cap states "DOT3 or 4). So the question is: Why "ONLY DOT3" on the brake fluid reservoir cap? btw, mine a Isuzu Trooper 3.1 TDi.
E ewetho Joined May 5, 2006 Messages 1,304 Location Kankakee, IL Jun 16, 2007 #5 IGNORE and use either with confidence. FORD DOT3 by the number could easily be DOT4 if they wanted to label it as such.
IGNORE and use either with confidence. FORD DOT3 by the number could easily be DOT4 if they wanted to label it as such.
O onion Joined Feb 4, 2007 Messages 2,097 Location kansastan Jun 16, 2007 #6 I've been told that DOT 4 has a higher boiling point, but is more prone to absorbing moisture. It'll work fine, though.
I've been told that DOT 4 has a higher boiling point, but is more prone to absorbing moisture. It'll work fine, though.
The Critic Joined Aug 30, 2004 Messages 31,965 Location CA Jun 16, 2007 #7 Quote: I've been told that DOT 4 has a higher boiling point, but is more prone to absorbing moisture. It'll work fine, though. Click to expand... Yup, so be sure to change it at least every three years.
Quote: I've been told that DOT 4 has a higher boiling point, but is more prone to absorbing moisture. It'll work fine, though. Click to expand... Yup, so be sure to change it at least every three years.
T Tourist Thread starter Joined Sep 22, 2005 Messages 93 Location Malaysia Jun 17, 2007 #8 "Castrol Disc Brake Fluid is a high performance synthetic brake fluid. It has excellent anti-vapour lock properties that provide extra safety." Hi. May I ask what does this "synthetic" means? Is it just a marketing hype or just plain glycol based stuff? http://www.castrol.com/castrol/sectiongenericarticle.do?categoryId=82914665&contentId=6005302
"Castrol Disc Brake Fluid is a high performance synthetic brake fluid. It has excellent anti-vapour lock properties that provide extra safety." Hi. May I ask what does this "synthetic" means? Is it just a marketing hype or just plain glycol based stuff? http://www.castrol.com/castrol/sectiongenericarticle.do?categoryId=82914665&contentId=6005302