![]() The coolant system is the part of a vehicle most likely to develop a sudden problem on the go IME, and running an obscure coolant that barely exists on this continent is something I consider a liability. I want my Landcruiser to be reliable, which also means easy to deal with when problems do arise. While The red coolant is typically Organic Acid Technology, designed to last longer and be more compatible with aluminum radiators. ![]() I'd probably run Toyota red if it was easily available in a bind. Green coolant is the conventional (Ethylene Glycol-based) and most commonly used (coolant) color (based on Ethylene Glycol). It's a good brand, widely available, anti-freeze, anti-boil, corrosive inhibiting, and listed to be safe with aluminium, steel, cast iron, solder, copper and brass. Cooling systems operated with a chromate-inhibited coolant must be chemically cleaned with Detroit Genuine Coolant Twin Pack cooling system cleaner/conditioner (or equivalent sulfamic acid/sodium carbonate cleaner. This, in turn, can result in engine damage due to poor heat transfer. I personally run with Nulon green here in Aus, mixed at 50:50 with distilled water. form chromium hydroxide, commonly called green slime. It isn't distilled from a magical stream blessed by the gods. Nothing special about the Toyota red IMO. "Use a good brand of ethylene-glycol or TOYOTA radiator conditioner or equivalent anticorrosive, mixed according to the manufacturer's directions." "Use a good brand of ethylene-glycol base coolant and mix it according to the manufacturer's directions."Īnd as per the FSM for the 1HZ and 1HD-T: The pre-diluted stuff is more convenient of course, but you end up paying a lot more for less coolant.Oh boy, this thread. Years ago coolant was always sold as pure coolant, and you'd have to dilute the fluid yourself with water. It would block up the cooling system very fast. Mixing them would result in creating a thick gel. It has a longer life than IAT but doesn’t fight corrosion that well. The red antifreeze is classified as an OAT. One thing to keep in mind with nearly every modern jug of coolant you’ll come across: They’re all pre-diluted. Green antifreeze is usually the oldest type of coolant the IAT. All GM cars use something called Dex-Cool from the factory. Or get Toyota (red or pink) coolant if you want (it costs more). Or, for pre-mix (if thats what you want): Beck/Arnley Pink, Aisin Pink, Zerex Asian Vehicle Forumula, or Rechochem OEM Premium Pink. Plenty of others like BMW and Volkswagen do the same thing. Just get any of the following concentrates: Pentofrost A1, Beck/Arnley Red, Recochem OEM Premium Red. Red is supposed to be a 'long life coolant', however it is still recomended by most MFGS to change it every 2 years (the same interval as the Green). Many times, the coolant is actually branded for the car you’re going to put it in.įor example, Honda sells its Type 2 Antifreeze/Coolant in all its dealers. Green is just fine, in most cases the green will protect the newer aluminium engines/radiators as well. They’ll sell the coolant for your specific make and model, and it’s guaranteed to be the correct one. The easiest way to make sure you’re getting the right coolant for the job is to go to your car’s dealership. but I was at the Detroit dealer in Phoenix to get some green coolant and they were saying that they do not carry the green coolant anymore. Finally, HOAT is a derivation of OAT that requires the same time change interval unless otherwise specified. Green coolant or red coolant Discussion in Heavy Duty Diesel Truck Mechanics Forum started by Vio. General Motors vehicles use this formula and normally require a change after five years or 50,000 miles. It needs to be changed every two years or 24,000 miles, making it far inferior to newer formulas. This is generally considered an out-dated type of coolant that contained phosphates and silicates, and required changing every two years on average. Green and blue traditionally represented Inorganic Additive Technology (IAT) coolants. There are three main types of coolant that car companies use: Inorganic Additive Technology (IAT), Organic Acid Technology (OAT), and Hybrid Organic Acid Technology (HOAT). The main coolant colours are: Green and Blue. It would be convenient if every manufacturer used the same coolant, but they don't. Sure, there are tons of different coolant options out there, but if you’re completing a full coolant flush and just want something that will work. Replacement frequency: 5 years/150,000 miles. When it comes time to top off or do a complete system flush you’re going to have to find the right coolant for the job. Valvoline Multi-Vehicle Concentrate Best Coolant Overall (Universal) Type: Concentrate.
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