What is the difference between Shell Helix Ultra and Shell Helix HX7?
1 Answers
Shell Helix Ultra and Shell Helix HX7 have the following differences: Different oil quality: Shell Helix Ultra (gray) is the best among Shell's products, with a higher performance level than Shell Helix HX7 (blue). Different vehicle applications: Helix Ultra is more suitable for turbocharged engines and medium-sized luxury vehicles, while Helix HX7 is suitable for most compact and medium-sized vehicles. Different grades: Shell offers 5 different color-coded engine oils, each representing different specifications and performance levels. From lowest to highest grade, they are: White Shell, Red Shell, Yellow Shell, Blue Shell (HX7), and Gray Shell (Ultra).