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| | | Forums66 Topics128,049 Posts1,055,653 Members48,426 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Jan 2003 Posts: 354 'Bolter | | 'Bolter Joined: Jan 2003 Posts: 354 | I use DOT 4. Two major differences from DOT 3. 1) Higher dry and wet boiling points. 2) Most DOT 4 fluids contain a borate ester. The borate ester reacts out water so it is not corrosive until enough water has entered to use up the borate ester.. Look for phrases like "low moisture activity", "low water sensitivity", etc. Some product data sheets (not MSDS) list a borate ester ingredient.
Harold Wilson
41 Chevy 3/4 Ton
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