There are many types of additives that claim they can help fix your car, but will a transmission additive really assist with ...

That's why some oil ... need zinc additive, though? Well, all oils you buy off-the-shelf come pre-mixed with additives such as zinc (usually 800 ppm), which are designed for modern engines because ...

along with the GM dexos1 gasoline engine oil approval. Royal Purple’s Synthetic Oil features enhanced additive technology that helps to prevent metal-to-metal contact beyond both GM dexos1 and ...

However, many oil additives for diesel engines will also work well in your gasoline engines. One of those that work well for both diesel and gasoline is Archoil's AR9100 Oil Additive. The company ...

These additives are mixed into the oil to prolong the life of your ... is a little different as it's engineered to work best in an engine that burns diesel fuel. The biggest differentiator is ...

But, unlike its competitors, Lubrizol tends to make many of the ingredients for its additive mixtures. Cornwell thinks that ...