STP®

Maintenance
Troubleshooting

These tips provide information on which STP® Products can help you with common car troubles. We also strongly recommend that you have your car checked by a qualified mechanic when your car is not performing normally.

  1. Tough Starts
    Have you had to make several attempts to start your engine in the morning before it would finally run? This can be a symptom of a number of different problems including fuel intake system deposits. We recommend: STP® Super Concentrated Fuel Injector Cleaner, STP® Complete Fuel System Cleaner.
  2. Smoke
    Does your car seem a little smoky when you are idling or accelerating from a stop? This can be caused by excessive wear of the valve guides and/or piston rings. We recommend: STP® Smoke Treatment.
  3. Knock & Ping
    Do you hear a knocking or pinging sound coming from your engine especially when passing another car or accelerating up a hill? Combustion chamber deposits in your engine can cause this to happen. We recommend: STP® Octane Booster, STP® Complete Fuel System Cleaner.
  4. Oil Leaks
    Have you noticed oil spots on the ground under your engine or sometimes a smell and a little smoke coming out from under the hood of your car? You may have oil leaking from your engines gaskets and seals. We recommend: STP® Engine Stop Leak.
  5. Reduced Gas Mileage/Fuel Economy
    Is your car's gas mileage not what it used to be? Fuel injector/carburetor deposits are a common cause of this problem. We recommend: STP® Super Concentrated Gas Treatment.
  6. Lost Performance, Hesitation & Stalling
    Does your car seem to have lost some of its performance? Does it at times hesitate and stall or have a tough time starting? These are all symptoms of fuel intake system deposits that can accumulate in your car's fuel intake system over time. We recommend: STP® Complete Fuel System Cleaner.
  7. Rough Idle
    Have you ever noticed that your engine doesn't idle quite as smoothly as it used to? A rough idle can be caused by fuel intake system deposit build up on the throttle plate in your fuel injected or carbureted engine. We recommend: STP® Super Concentrated Fuel Injector Cleaner.
  8. Fuel Line Freeze
    Has your car ever refused to start on a cold winter morning due to a frozen fuel line? We recommend the use of: STP® All Season Water Remover to help prevent fuel line freeze.
  9. Groaning or Chattering Turns
    Do you hear a groaning or chattering sound from under the hood when you turn the steering wheel sharply (e.g. when parking)? If so you may be low on power steering fluid. Check the fluid level in the reservoir. We recommend:STP® Power Steering Fluid.

Need more help? Visit our Basic Maintenance Center.