MERCURY REPLACE/REMOVE

I Have A 2005 Mariner Premiere With A Blown 2.5l Engine. I Have Access To A Rusted Out 2008 Mariner Premier With A Good 3.0l Engine. Both...

Want To Know If The 2005 Ford Explorer 4.0 Engine Will Exchange To The Vehicle Listed Above And Do I (or Can I) Have To Change Something?

I Have The Car Listed Above With A V6, And A 1.6 L 4-cylinder Engine From A 2016 Veloster Turbo, Would It Fit On The Cougar?

I Have Tuned Up The Engine, Changed Oil And Cleaned Fuel Injectors, Why When I Fill Up My Tank $75, Ouch, In 2 Days Of City Driving...