[Guest]

Does anyone know if it matters whether I use the stock gas cap or if it's OK to use another one that I might buy from a PepBoys or AutoZone?

I would like to get a locking cap for the Cougar, but want to make sure it won't trigger the check engine light or cause other problems.

The dealer wants $40 for a 'Ford' locking gas cap.

 

[MrFroge]

As long as it is made for your Cougar there isn't a problem with where you buy it.. remember it must be compatible with the antipollution system.. I believe it is a "non-vented" style..

 

[Rick]

Get this one if you haven't gotten one yet. I am very happy with mine.

Gas Cap