Thank you ALL for the replies.!
I resolved the anti-freeze dumping issue by simply replacing the cap to the overflow with the correct one.
I still intend to change out any fuel filter(s), but for now I have resolved that issue as well. Every car I buy I always run some Chevron with Techron through the tank
, they always run better afterward. This time it seems to have resolved that issue!
BTW, I took my new GT to the Casino last night.... the valet guys were all over it!
The Cadillac V-8 in mine is an HT4500 (although they never officially designated them that).
A bottle of Chevron and the right overflow cap just saved me a lot more money than switching to Gieco!!!
[This message has been edited by bjm362 (edited 08-11-2018).]