Ring End Gap

Compression Ring
1st ring
Standard 0.30 mm - 0.50 mm (0.0118 inch - 0.0195 inch)
2nd ring
Standard 0.30 mm - 0.50 mm (0.0118 inch - 0.0195 inch)
Oil ring
Standard 0.40 mm - 1.40 mm (0.0156 inch - 0.0546 inch)