Review on 💧 ACDelco GT330 GM Original Equipment Fuel Tank Cap: Ensuring Optimal Fuel System Performance by Michael Glassburn

Works perfectly. If you don't know what fuel cap you need, don't work on your own car! To further assist those of you who may need a little help and are reasonably able to drive your own car, I will point out the obvious differences between the two types of gas caps. This GT330 gas cap has two triangular notches on the gas cap that snap into the filler neck. The old style gas cap had 2 threads on the gas cap that screwed into the filler neck. If you can compare them, if not, look at the internal threads in the filler neck and compare in the photos! Much luck