Based on the age of your vehicle, our recommendation would be B-60 High Mileage Fuel System Rejuvenator (part #7516). It is intended for vehicles exceeding 60,000 miles.  This product contains our highest detergent package and will thoroughly clean your entire fuel system to include fuel injectors, intake valves, and combustion chambers. This product is recommended every 10-15K miles. If you simply want to clean the fuel injectors, you can start with B-12 Chemtool Fuel Injector Cleaner (part #0116). This is our flagship fuel additive, great for everyday usage. We recommend using 0116 every third fill up.