Choice of anti freeze
#5
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Good advice to use distilled. Even better, IMO, is Mazda's Extended Life Coolant, part # 0000 77 508E 20. It's pre-mixed for you, no need to buy distilled and do the mixing. On top of that it's good for "up to" 5 years. Don't let it go that long. Be safe and change it at 3.
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#13
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[QUOTE=dhays;8396393]Last I checked, heat transfer efficiency of straight distilled water was better than any anti-freeze mix. You may just want to use distilled H2O with a rust inhibitor such as Water Wetter . Of course, put in anti-freeze come winter.
True - but remember that antifreeze also raises the boiling point. Anti-rust additives such as water wetter don't, and as a result, cooling system internal pressure will increase, putting more load on seals, hoses, etc. With our hot-running, tempermental engines, that can be a problem.
Dave
True - but remember that antifreeze also raises the boiling point. Anti-rust additives such as water wetter don't, and as a result, cooling system internal pressure will increase, putting more load on seals, hoses, etc. With our hot-running, tempermental engines, that can be a problem.
Dave
#14
gross polluter
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Your pressure cap will relieve that extra pressure, so with the proper cap no matter what you run for coolant you will not see over 13psi.
I always run at least 25% coolant, not only does it raise the boiling point but it also lubricates the pump much better than a tiny bottle of water wetter. Nothing against water wetter, but its target market is supposed to be for racers and not regularly driven street cars. If you want to use it go for it but dont leave out the coolant.
Oh, and I usually just run Sierra. It slightly safer so the neighbors cat or dog can drink just a little more before they get sick and die.
I always run at least 25% coolant, not only does it raise the boiling point but it also lubricates the pump much better than a tiny bottle of water wetter. Nothing against water wetter, but its target market is supposed to be for racers and not regularly driven street cars. If you want to use it go for it but dont leave out the coolant.
Oh, and I usually just run Sierra. It slightly safer so the neighbors cat or dog can drink just a little more before they get sick and die.
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[quote=DaveW;8396439]
Yeah, your right. The boiling point of H2O with a 13 psi pressure cap would be about 245 degrees. Prestone 50/50 gives an increase in boiling point of about 15F at 15 psi so maybe an increase of 13F to 14F at 13 psi. However, that won't increase internal pressure since you have a pressure cap. The only problem is that if your coolant gets to 245, you will have boiling problems where with anti-freeze you would probably be good to about 260F
Last I checked, heat transfer efficiency of straight distilled water was better than any anti-freeze mix. You may just want to use distilled H2O with a rust inhibitor such as Water Wetter . Of course, put in anti-freeze come winter.
True - but remember that antifreeze also raises the boiling point. Anti-rust additives such as water wetter don't, and as a result, cooling system internal pressure will increase, putting more load on seals, hoses, etc. With our hot-running, tempermental engines, that can be a problem.
True - but remember that antifreeze also raises the boiling point. Anti-rust additives such as water wetter don't, and as a result, cooling system internal pressure will increase, putting more load on seals, hoses, etc. With our hot-running, tempermental engines, that can be a problem.
#17
Mr. Links
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A buddy of mine ran Cools Like Ice for years on his track based FD and swore by it:
http://www.vichubbard.com/auto-part-...prb-4030g.html
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