I have a Pontiac 2008 G6 and its in good condition with 123,500 miles and i started losing fluid, so i replaced the pumped and it works good, but I’m still losing fluid and ive check for leaks and haven’t found anything so im ask if there is anything thay could cause this.

As of now im replacing fluid around every 25-30 days since im losing it. I drive around 500-1,000 miles per month.