I just want to say that just because the oil or car companies dont say to use it doesnt mean that it is bad. Case in point the oil companies and the auto companies used to recommend to change your oil every 2000 miles, when the oil last for like 5000. so why do they say that? money. Think how much oil you have to buy. same thing with some of these additives. why would a car company want you buying something that could potentially help protect your car so you would buy less parts, less repairs, and maybe in the end prolong the time it takes to buy a new car? its a figures game. you pay 30 bucks for some product that improves your car and then you dont spend thousands on repairs, parts, and labor that accures from just regular wear and tear.
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