
Since the personal automobile was invented, there have been countless products advertising that you can improve the performance of your car and prolong its life on the road. Aside from spark plugs, no product has been so heavily advertised and not quite as understood as engine oil additives. Are all of the claims and promises true? Should you use oil additives in high-end cars? Dig deeper to learn about oil additives, maintaining luxury car engines, and which (if any) products you should use on your new or pre-owned Bentley.