| 2026-07-14 | Longtime NASCAR sponsor |
| 2026-06-17 | Valvoline rival |
| 2026-04-13 | Motor oil brand |
| 2026-04-03 | Sponsor of auto racing's Sprint Cup Series |
| 2026-01-20 | Pennzoil competitor |
| 2026-01-17 | Product with the additive zinc dithiophosphate |
| 2026-01-11 | Longtime NASCAR sponsor |
| 2025-12-10 | Longtime NASCAR sponsor |
| 2025-10-29 | Speedway sponsor |
| 2025-06-12 | Motor oil brand |
| 2025-04-14 | Product known as "The Racer's Edge" |
| 2025-03-13 | Speedway additive brand |
| 2025-02-03 | Brand of motor oil |
| 2024-12-15 | Big inits. in fuel additives |
| 2024-10-29 | Pit stop brand |
| 2024-10-28 | Valvoline competitor |
| 2024-10-25 | Indy label |
| 2024-09-29 | Longtime NASCAR sponsor |
| 2024-09-22 | Pennzoil competitor |
| 2024-08-15 | Noted speedway sponsor |
| 2024-06-29 | Brand seen at AutoZone |
| 2024-06-02 | Big name in motor oil |
| 2024-01-07 | "The Racer's Edge" sloganeer |
| 2023-07-02 | Garage brand |
| 2023-02-07 | Longtime sponsor of 8-Down |
| 2023-02-05 | Filling station brand |
| 2023-01-29 | Noted speedway sponsor |
| 2022-11-20 | Longtime NASCAR sponsor |
| 2022-02-13 | Brand seen at speedways |
| 2022-02-07 | Motor oil brand |
| 2022-01-17 | Indy 500 sponsor |
| 2021-10-26 | Canful at a gas station |
| 2021-10-20 | Valvoline rival |
| 2021-10-15 | 500 letters? |
| 2021-07-08 | Big speedway sponsor |
| 2021-06-25 | Garage brand |
| 2021-04-19 | Longtime advertiser at the Indy 500 |
| 2020-12-13 | Fuel additive brand |
| 2020-12-01 | Automotive brand with an oval logo |
| 2020-09-27 | Indy inits. |
| 2020-07-01 | Brand sold at gas stations |
| 2020-04-27 | Popular gas additive |
| 2019-11-10 | Rival of Havoline |
| 2019-06-06 | Big brand with an oval logo |
| 2019-02-04 | Motor oil product |
| 2018-09-20 | Brand at a garage |
| 2018-09-04 | Nascar additive |
| 2018-07-09 | Engine additive since 1954 |
| 2018-04-15 | Pennzoil competitor |
| 2018-02-04 | Big engine additive |
| 2018-01-15 | Big advertiser at auto races |
| 2018-01-07 | Major race sponsor |
| 2017-12-24 | Speedway brand |
| 2017-11-06 | Fuel additive brand |
| 2017-08-10 | Indy racer sponsor |
| 2017-04-01 | Racing letters |
| 2017-02-09 | Motor oil brand |
| 2016-09-06 | Brand at the Daytona 500 |
| 2016-08-28 | Racer's brand |
| 2016-06-26 | Letters on many a racecar |
| 2016-06-04 | Sprint Cup Series sponsor |
| 2016-04-12 | "The Racer's Edge" |
| 2016-04-07 | "The Racer's Edge" product |
| 2015-09-11 | Oomph! degreaser brand |
| 2015-08-23 | Nascar sponsor |
| 2015-08-10 | Gas tank additive |
| 2015-07-12 | Car care brand |
| 2015-04-28 | Pit crew's canful |
| 2015-03-21 | 500 letters |
| 2015-03-10 | Longtime Nascar sponsor |
| 2015-02-06 | Pep Boys product |
| 2015-01-07 | Motor oil choice |
| 2014-12-15 | Indy letters |
| 2014-10-27 | Gasoline additive brand |
| 2014-09-17 | Letters at Indy |
| 2014-07-18 | Letters on a track |
| 2014-04-20 | ___ 500, annual race in Ridgeway, Va. |
| 2014-02-12 | Common Nascar letters |
| 2014-02-09 | 500 letters? |
| 2013-10-12 | Octane booster brand |
| 2013-03-27 | Auto additive with a red oval logo |
| 2012-12-07 | Longtime sponsor of racing's #43 car |
| 2012-07-23 | Big inits. in fuel additives |
| 2012-04-22 | 500 initials |
| 2012-03-02 | Big race sponsor |
| 2011-12-19 | Racecar fuel additive |
| 2011-10-05 | The Racer's Edge |
| 2011-08-15 | Auto additive brand |
| 2010-12-15 | Indy letters |
| 2010-12-02 | Onetime sponsor of Richard Petty and Mario Andretti |
| 2010-10-12 | Indy initials |
| 2010-10-09 | Brake fluid brand |
| 2010-04-11 | Maker of fuel additives |
| 2010-03-29 | "The racer's edge" |
| 2010-01-25 | "The racer's edge" |
| 2009-11-11 | Nascar sponsor |
| 2009-11-02 | Gasoline additive |
| 2009-02-28 | Brand of octane booster |
| 2008-12-23 | Engine additive |
| 2008-08-25 | Engine additive brand |
| 2008-07-12 | 1999 Clorox acquisition |
| 2008-06-01 | Brand at a gas station |
| 2008-04-08 | Indy 500 inits. |
| 2008-01-16 | "The racer's edge" |
| 2007-10-14 | Big car racer sponsor |
| 2007-07-27 | Motor Up alternative |
| 2007-05-01 | Big inits. at Indy |
| 2007-02-03 | Product with the old jingle line "One little can will keep you running free" |
| 2006-12-31 | Speedway letters |
| 2006-12-11 | Engine additive brand |
| 2006-11-26 | Sponsor at Indy |
| 2006-08-11 | Big race sponsor |
| 2006-01-26 | Indy 500 advertiser |
| 2005-12-04 | Racing car product |
| 2005-07-27 | Product at a gas station |
| 2005-05-19 | Big letters in racing |
| 2005-05-15 | Longtime Nascar sponsor |
| 2005-05-10 | Fuel additive |
| 2004-11-01 | Indy racer sponsor |
| 2004-10-05 | Popular fuel additive |
| 2004-09-30 | Indy letters |
| 2004-05-08 | Name on an oval |
| 2004-03-31 | "The racer's edge" |
| 2004-03-18 | Racing initials |
| 2004-03-14 | Big race sponsor |
| 2004-03-05 | Race sponsor |
| 2003-12-14 | Pit stop can |
| 2003-11-17 | Its slogan is "The Racer's Edge" |
| 2003-05-15 | 500 letters? |
| 2003-05-11 | Engine-cleaning brand |
| 2003-04-29 | Inits. at a gas station |
| 2003-04-02 | Indy sponsor |
| 2003-02-21 | Crankcase additive |
| 2003-01-15 | Letters at a Nascar race |
| 2002-12-23 | Fuel additive |
| 2002-11-30 | Racing initials |
| 2002-10-25 | Dura Lube alternative |
| 2002-09-13 | Certain "edge" |
| 2002-09-01 | 500 letters |
| 2002-06-24 | Engine additive letters |
| 2002-06-16 | Initials on a Nascar car |
| 2002-05-17 | Car care product |
| 2002-05-04 | Big name in auto products |
| 2002-02-17 | Indy letters |
| 2001-08-21 | "The Racer's Edge" sloganeer |
| 2000-12-24 | Product made by Armor All |
| 2000-12-21 | Fuel additive brand |
| 2000-12-11 | Gas station product |
| 2000-11-01 | Big Indy 500 advertiser |
| 2000-06-29 | Big Nascar advertiser |
| 2000-04-22 | Oil additive |
| 2000-03-21 | Indy 500 logo |
| 1999-08-10 | "The Racer's Edge" |
| 1999-06-13 | 60's-70's hallucinogen |
| 1999-03-13 | Racing car product |
| 1999-01-26 | Popular oil additive |
| 1998-07-09 | Indy 500 sponsor |
| 1998-05-31 | Big initials at Indy |
| 1998-05-06 | "The Racer's Edge" |
| 1998-02-01 | Race car sponsor |
| 1997-08-05 | Popular oil additive |
| 1997-07-12 | Indy 500 letters |
| 1997-06-02 | Nascar sponsor |
| 1997-04-24 | "The Racer's Edge" |
| 1996-10-09 | Popular Formula One formula |
| 1996-09-30 | Oil treatment inits. |
| 1996-09-01 | Indy 500 advertiser |
| 1996-06-10 | Engine additive: Abbr. |
| 1994-12-12 | Popular oil additive |
| 1994-12-09 | Gas station display |
| 1994-08-17 | lndy 500 advertiser |
| 1994-01-01 | Engine additive |