you thank for registering with stp please check your email for news and offers from us soon . click to return search zip code buy stp gear stp canada stp china stp europe products fuel additives oil additives brake and power steering fluid multipurpose additives motor oil specialty products appearance products licensed products the garage see the difference basic maintenance faqs racing richard petty richard petty motorsports stp racing history stp 500 steve letarte about stp stp history news social videos offers registration contact us sds privacy policy terms contact us sitemap careers helping engines run better longer since 1954 let s give deserving kids an ultra summer thank you to everyone who participated in the giving kids an ultra summer donation program to help support victory junction . with more than 50 000 bottles of ultra 5 in 1 fuel system cleaner sold and the support of our social media community we raised 28 043 for victory junction . the donation was presented at the bojangles southern 500 and was proudly displayed on the rear side panels of the stp no. 43 . learn more see how stp fights harmful engine deposits join our automotive scientists in a test facility and watch our products be put to the test . get scientific proof of how stp can help remove deposits and help get your vehicle running better longer . watch now not sure which stp fuel additive to use gas treatment octane booster fuel injector cleaner check out our fuel additives comparison guide to determine which of the many stp products are best for your ride . compare now meet the stp racing family when richard petty rolled into victory lane at riverside international raceway during the 1972 cup season opener stp was on the car and we re still on it today . stp one of the most recognizable brands in all of motorsports has continued to perform on the track and on the street for more than four decades . find out more sds privacy policy terms contact us sitemap careers proud member of the 2016 the armor all stp products company a spectrum brands company