Original equipment coolants are validated for factory replacement parts. ![]() Top up everything else with your second coolant-G-05 or conventional American. ![]() However, if you’re unsure of which fluid to use to keep your vehicle performing at its best, refer to your owner’s manual or ask a trusted mechanic. Top up with DexCool in GM and VW/Audi vehicles, and '98 Chrysler L/H cars or the '99 Mercury Cougar, if you get one with the original coolant or DexCool. Well clarify that a little later, but regardless of what you call it, coolant has several important jobs: Prevents your engine from freezing up in cold weather. We selected five of the best-rated antifreeze and coolant fluids that are also compatible with most vehicle makes and models. WHAT IS ANTIFREEZE/COOLANT Antifreeze and coolant are terms that are often used interchangeably. VW\'s G-12 In the end of this thread I posed a question maybe better suited for this thread, any difference between the 2, both are orange and used in Diesel engines. When browsing the various types of fluids, it’s easy to get confused. These coolants, either Subaru Blue, Toyota Red, or VW / Audi G12, which is Purple, are the reasons why sticking with the factory-spec’d coolant intended for the vehicle is highly recommended over going with an all makes coolant it is far superior. Running your car on older deteriorating antifreeze or coolant can cause acid buildup, scaling and reduced resistance to extreme temperatures. The longer you use coolant, the more its useful chemical properties break down. Performing routine maintenance on your vehicle’s cooling system will ultimately prolong the engine’s life. Antifreeze also fends off rust and corrosion, helping to extend the life of water pumps, radiators and other cooling system components. Back in 1995, GM began to use Dex-Cool coolant in its vehicles in fact, you may very well be driving a vehicle. Distilled Water Is Always Best Tap water and even filtered water are full of minerals such as calcium and magnesium which leave deposits inside the entire cooling system - particularly around parts of the engine that reach high temperatures. In the winter, the chemical formulas in antifreeze also prevent water and moisture from freezing, which can damage the cooling passages inside the engine and other components just as it would the pipes in your house. 11,300 owners of 1995-2004 GM vehicles are nearing the end of a long road. It doesn't have problems when going 65MPH or so.Combustion engines generate lots of heat, and coolant, a mixture of antifreeze and water, plays a vital role in regulating their operating temperatures. How exactly should I go about switching to the proper Dexcool coolant? Would it do more harm than good to switch now?Īlso, my car is having problems in that it overheats when sitting in traffic or idling. But for others I think I'd recommend playing it safe and going with G12 Plus. Fill with distilled water/Dex-cool mixture. That’s when GM introduced Dex-Cool coolant, an organic acid coolant technology (OAT) to replace silicate coolants. So I've been running green coolant for about a year now. If you want to stay factory, then make sure you get purple G12 Plus from a VW or Audi dealer. Fill the cooling system with distilled water and a radiator flush, bleed, drive around for 1-2 days. I took it to another mechanic and after fixing the leaks, he also filled it up with green coolant. Well, reading up more I realize that I'm wrong.Ībout 6 months ago, I had a wreck and got the radiator replaced(salvaged) and the mechanic(who I'm convinced now is an idiot) filled it up with green coolant along with leaving several leaks. When you mix antifreeze with water it becomes coolant. I ignored the Dexcool warning in my manual as one of those "you also need to take it to a certified dealer to get the oil changed" type of warnings. Antifreeze is a chemical that is usually made up of something called ethylene glycol and is mixed 50/50 with water in your radiator to circulate through your engine and maintain an optimal temperature. At the bottom of the expansion tank was an orange crust(also the manual recommend DexCool. have a hose ready and fill up the coolant bottle. (if you dont live in a city/crowded neighborhood) fill the sytem with water after draining, undo the lower rad hose, run the motor. if i had the system apart then id flush just for S
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