We use cookies to give you the best experience of our website. By browsing you agree to our use of cookies. Allow cookies Turn cookies off Our Cookie Policy
Turn cookies on for a better website experience. Allow cookies Our Cookie Policy
  1. The Garage
  2. FAQS
  3. FAQs General

FAQs GENERAL

“STP” stands for Scientifically Treated Petroleum. Back in 1954, our only product was STP Oil Treatment.
Yes. All of the STP products have been extensively tested and are safe for use in all cars. Always remember to follow the usage recommendations, which are clearly indicated on the label.
Yes. STP products can be used in vehicles of any age.
STP has specially designed products for diesel engines, which have been labeled as diesel products. They have been thoroughly tested and evaluated in specific diesel applications to demonstrate their ability to help improve specific performance attributes of diesel engines and fuels.
All STP products are individually labeled for dose and treatment intervals.
STP products are completely compatible with all other standard fuel and lubricant additives that are intended for similar use. However, mixing fuel or lubricant additives is not recommended, nor should it be necessary.
No. The products have been formulated to work best at the recommended treatment rate.
We do not advise putting STP products through a vacuum line.
Yes, we still have a relationship with Richard Petty Motorsports, the longest affiliation of its kind in NASCAR® history. We’re also the title sponsor of the STP 500 at Martinsville Speedway in the Spring.  Follow us on Twitter: @STPracing.