Most popular pack for piston soak
The 6-pack suits larger engines, a second soak cycle, or stocking up. Six 444 ml cans cover:
- Full piston soak on most 6-cylinder engines (or a 4-cyl with a repeat cycle)
- 6-cylinder inline engines (single pass)
- Fuel system cleaning plus piston soak combined
Fixing excessive oil consumption from stuck rings typically needs 4–8 bottles depending on engine size — the 6-pack hits the sweet spot for price and coverage.