Royal Purple
Tested in 14 reviews · 14 products
- Mar 2025 Do "Super Coolants" Lower Engine Temperature By 30 Degrees? Royal Purple—
- Jun 2024 How Bad Are Cheap "Diesel" Motor Oils? $14 vs $58 Royal Purplenotable
- Mar 2022 Synthetic Grease Better? Let's Find Out! Royal Purplenotable
- Jun 2019 Is Amsoil better than Penrite? Let's find out! Royal Purple—
- Jun 2019 Is Amsoil better than Kendall? Let's find out! Royal Purple—
- Jun 2019 Is Amazon Basics Motor Oil better than Penrite? Let's find out! Royal Purple—
- May 2019 Is Castrol Motor Oil better than Kendall? Let's find out! Royal Purple—
- May 2019 Is Lucas better than Pennzoil? Let's find out! Royal Purple—
- Apr 2019 Is Mobil 1 better than Schaeffer's Full Synthetic 5W-30 Motor Oil? Let's find out! Royal Purple—
- Apr 2019 Is Amazon Basics better than Liqui Moly? Let's find out! Royal Purple—
- Mar 2019 Is SuperTech Synthetic Oil as good as Red Line? Let's find out! Royal Purple—
- Mar 2019 Is Royal Purple better than Amsoil? Let's find out! Royal Purple#2 of 2
- Jul 2018 Do Penetrating Oils Block Rust? Let's find out! Royal Purple#1 of 8
- Apr 2018 Which Penetrating Oil is Best? Let's find out! Royal Purple#3 of 5