has anyone ever had issues with their fuel cap leaking? Im really careful when filling my tank and putting in the race oil (its a 13B turbo) so i know the marks on my rear guard are not from me spilling it.

at first I thought it was some tyre shine but have kept an eye on it and fuel or oil leaking out seems to be the only logical option.

I looked at the cap and its looking not the best, will a super cheap auto generic one do the job or should I look for a Mazda replacement one?

the tridon branded caps are a good replacment. i've used them in the past.

i lost my original one and replaced it with a tridon one and find it doen turn all the way shut and it leaks after a good drive.. hmm

Mine was mint, it turned fully etc...

Hmm tridon are known for bad listings so that may have come into play. Oh well