The oil filler pipe gauge for the Citroën 2CV is a specially designed instrument that measures the oil content and pressure in this classic car's engine. It attaches to the filler pipe to provide easy and accurate monitoring of oil levels and pressure. Essential for maintaining engine longevity and performance, this gauge is a must-have accessory for any 2CV owner. Its straightforward installation and dependable functionality make it a popular choice among enthusiasts and restorers who value preserving this iconic vehicle in its original condition.