Reference

Oil drain pan sizing reference

Worked sump × jobs examples and class checks for US DIY through shop oil-drain capture volumes.

Required gallons = (sump_qt ÷ 4) × jobs. Whole-number jobs only.

Details

Leave headroom; dispose waste oil legally; confirm live published capacity.

Tools

(5 ÷ 4) × 4 = 5 → 8 gallon class.

Details

Enter sump_qt 5 and jobs 4.

Tools

(6 ÷ 4) × 8 = 12 → 15 gallon class.

Details

Enter sump_qt 6 and jobs 8.

Guides

(12 ÷ 4) × 6 = 18 → 20 gallon class.

Details

Clears 15; lands in class 20.

Reference

(20 ÷ 4) × 8 = 40 exceeds the 20 gallon ceiling.

Details

Do not force a 20 gallon class for this capture volume.

Guides

Guides, calculator, and comparisons.