1. Mga Peeps Ask Ko Lang What Brand Ng Coolant ang the Best Yet Affordable?
2. Pati Ba Sa Water Reservior, Coolant Din Ang Ilalagay?
1. Mga Peeps Ask Ko Lang What Brand Ng Coolant ang the Best Yet Affordable?
2. Pati Ba Sa Water Reservior, Coolant Din Ang Ilalagay?
Oo nga, sa Mazda3 ko kasi wala ako nakita na lalagyan ng water for the radiator. Sa coolant na lang ba?
I just buy from the casa, pre mixed na so no need to mix water, ratio etc...buhos na lang
Prestone 1:1 ratio with absolute distilled water including reservoir. * P230/li or P600/gal. nga pala claim ko yung prizes ko from prestone this fri. sa transhow - nang makapag pa-picture kay gaby dela merced :bwahaha:ayos na ayos ngayong tag-init.
Last edited by XTO; April 15th, 2008 at 10:51 AM.
I use Top1 coolant sa isa kong car at 100 petot per can. I use only 1 can but change my coolant every 6 mos.
A 50/50 coolant mixture will only have 50% heat removal compared to 100% pure water. With less 'coolant in the mix' you have more heat removal capacity but for corrosion protection and lubricating properties a more diluted mixture needs to be replaced more often, which I am willing to do.
Radiator cap pressure rating should also be within your car specs or higher for increased boiling point, also to prevent hot spot formation, and pump cavitation.
I also use Shell and Caltex long life at 25% mix sa iba kong sasakyan. Wilkins (or kung ano mura na foodgrade distilled water) ang pinaka tubig ko.
I use dex-cool extended life 5yr coolant.... pero any coolant will do.
I just want to interject. Failed to respond to this a few days ago.
I'd like to put a stop to this... Water has the highest heat capacity, but it also has the highest pressure change under heat, which means that it is effectively less able to absorb heat and stay within the system's pressure capacity (before boiling over) than a 50/50 mix or even the new waterless coolants being used today.
Basically, your cooling system is only as good as the amount of pressure it can take. You use pure water, once you've exceeded a certain heat load for the system, the pressure rises beyond the system capacity, and water is puked into your coolant reservoir to ease the pressure.
The more coolant, the less pressure build-up in the system, the more effective it becomes.
Some waterless coolant systems run at really high temperatures... over 100 degress celsius, which plain old 50/50 systems can't match. This allows for higher thermal efficiencies from the engine. Needless to say, newer engines, designed to run higher cooling system and engine temperatures, should never be run on pure water or a 70/30 set-up.
More useful reading here, with scientific tests showing the difference between water, 50/50 and pure propylene glycol:
http://www.jcna.com/library/tech/tech0011.html
Ang pagbalik ng comeback...
Stovetop experiments do not mimic the 'closed cooling system of a car (open only when radiator cap capacity is exceeded'.
That is why the car cooling sytem is not as good w/o a radiator cap.
Running a pure water with a cap rating of 0.9 (0.9 x 1 Bar or 14.7 PSI} will increase its boiling point to 115 degrees C. The boiling point of water increases 3 degree F per PSI, a 25% coolant mix will further improve this with other benefits.
Adding a surfactant like 'Redline's water wetter' will improve further your cooling sytem.
You can read this link to give you another view (although there are a lot of this kind in the web really).
http://www.turbomagazine.com/feature...t_results.html
I would say that the readers should read more on this subject before giving a final conclusion.
OopsI meant DEXCOOL not DEXRON.
Dexron is an ATF while Dexcool is a coolant used by GM cars.
There are a lot of complaints in the US about dexcool turning into gel inside radiators and doing other weried stuff. I belive that GM is doing a study to find out if this is true or not. But I would rather err on the side of caution and just use the common green or ethylene-glycol coolant. Here are some of the complaints:
http://www.consumeraffairs.com/autom...m_dexcool.html
Anyway, GM is the only manufacturer that insists on using dexcool. So if you dont have a GM car, no point in buying dexcool.
I've used dexcool coolant for a long time now pero wala naman problema(so far..heheh). if you notice on the link na most of the people that are complaining has a gm vehicle. I read somewhere na ang problema is usually a leak in the intake manifold gasket nung mga gm vehicles .
Also I've seen people with the newer model toyotas that has red coolant from the factory na gumagamit ng dexcool wala naman problema.