Snake oil. Mouse milk. Whiffle dust. Take your pick — few products have earned such unflattering sobriquets as aftermarket motor-oil additives. And for the very good reason that these promised ...

You already know how critically important regular oil changes are for your car. Without them, your car’s innermost components and systems can face serious problems — and you could wind up with costly ...

We have all heard and probably used fuel additives. These are compounds that improve the performance of your engine by enhancing the quality and efficiency of fuel used. Different additives are ...