i had a TRD radiator cap on my 2003 toyota corolla s but i kept it when i traded in that car for my tc. i was wondering if i could use the corolla radiator cap on my tc? the TRD part numbers aren't the same. the corolla's is TRD 00642-16401-003 and the tc's is TRD 00602-16401-001. however, the number on the right of the cap on my stock corolla cap was 0.9 and it is 0.9 on the stock tc cap too. and the number on the right on the TRD cap for the corolla is 1.3 and i looked up the tc's TRD cap and it says 1.3 also. i don't know what those numbers mean but they are the same. would it do damage to my tc if i used this cap? or do i have to buy the one for the tc if i want a TRD cap? or does the TRD cap not make a difference compared to the stock cap?