Coolant
My questions are:
1. Is Motorcraft Gold only avilable at the dealership?
2. Can the Zerex be used as a replacement for the Gold?
3. If the Zerex can be used, can it be mixed with the Gold, ie: topping off a low system that is filled with the Gold.
Thanks for your thoughts.
2. zerex can be used as long as it meets fords specs for the coolant system.
3. it should be ok to mix them both.
4. i recommend flushing the sys out, adding a coolant filtration system and refill with
50/50 ford spec coolant.
these engines have a known problem with casting sand issues plugging the egr cooler and the oil coolers in the engine, this is why i recommend flushing the system and adding a coolant filter from dieselsite.com.
2. According to Valvoline's site, Zerex G-05 will work. Here is the link for more information, you can download a chart from this page: Valvoline.com - Zerex Cooling System Chemicals
3. I am not sure what the 'official' response would be from Valvoline. As a matter of practice, I never mix chemicals in the cooling system. There is always an unknown on how one vendors mixture and concentration of chemicals will react with another. I am a fan of flushing the system and then reloading with distilled water and one type of coolant.
Here is information from Valvoline's site:
Zerex G-05 is the original full chemistry in newer Ford & Daimler Chrysler vehicles. Its Hybrid Organic Acid Technology (HOAT) chemistry combines the best of conventional and organic acid-based chemistry to provide the ultimate protection against rust and corrosion.
For convenience and protection, try Zerex G-05 Ready To Use. Zerex G-05 Ready To Use combines the excellent temperature and corrosion protection of Zerex G-05 with de-mineralized water to help reduce the risk of cooling system deposits. The 50/50 mixture provides protection down to -34°F.
- Protection for up to 5 years / 150,000 miles
- Approved by Ford and DaimlerChrysler for use in automotive and diesel engines.
- Utilizes hybrid organic acid technology to minimize inhibitor depletion
- Low-silicate, low-pH and phosphate-free formula
- Provides protection against liner pitting and corrosion
- Helps prevent rust and corrosion
- Helps prevent hot weather boil-overs and cold weather freeze-ups
- Protects all cooling system metals, including aluminum
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<TABLE style="WIDTH: 632pt; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=843 border=0 x:str><COLGROUP><COL style="WIDTH: 632pt; mso-width-source: userset; mso-width-alt: 30829" width=843><TBODY><TR style="HEIGHT: 12.75pt" height=17><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 632pt; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent" width=843 height=17>Here is what you do....</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 632pt; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent" width=843 height=17>1) Buy 4 gallons of Ford Premium Gold coolant at dealer</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 632pt; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent" width=843 height=17>2) Buy 20 gallons of distilled water at local grocery store.</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 632pt; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent" width=843 height=17>3) Drop lower radiator hose until empty.</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 632pt; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent" width=843 height=17>4) Reconnect hose and add distilled water to degas bottle until full.</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 632pt; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent" width=843 height=17>5) Drive truck until temp guage goes to normal and thermostat opens.</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 632pt; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent" width=843 height=17>6) Repeat steps #3 through #5 no less than 4 or 5 times (depends on distilled water amount used) - I can't remember?</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 632pt; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent" width=843 height=17>7) You now have 100% distilled water in your system.</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 632pt; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent" width=843 height=17>8) Drop lower hose 1 last time, drain and reconnect.</TD></TR><TR style="HEIGHT: 25.5pt" height=34><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 632pt; BORDER-BOTTOM: #d4d0c8; HEIGHT: 25.5pt; BACKGROUND-COLOR: transparent" width=843 height=34>9) Look in manual for your system capacity and for a 50/50% refill of coolant just add the coolant straight into your degas bottle up to the amount that equals a 50/50% concentration (27.5 quarts plus a pint for the coolant filter).</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 632pt; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent" width=843 height=17>10) Start motor and add distilled water to bring system level to the MIN mark on degas bottle.</TD></TR><TR style="HEIGHT: 38.25pt" height=51><TD class=xl24 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 632pt; BORDER-BOTTOM: #d4d0c8; HEIGHT: 38.25pt; BACKGROUND-COLOR: transparent" width=843 height=51>11) Drive truck around to open thermostat and let cool once or twice to purge any air. May need to add more distilled water... but when done you have flushed your entire system and have a perfect 50/50% concentration of coolant and distilled water.</TD></TR></TBODY></TABLE>












