Why is it important to regularly maintain the engine of a Ford Fiesta?

I just bought a Ford Fiesta and I'm wondering how often I should have the engine checked. I've heard that regular maintenance can prolong the life of the engine. Can anyone give me some advice on this?

"As a mechanic, I highly recommend getting your engine checked every 6 months or 5,000 miles, whichever comes first. This will ensure that any potential issues are caught early on and can save you from costly repairs down the line."

"I've had my Ford Fiesta for 10 years and have never had an issue with the engine. I only get it checked once a year during my routine maintenance and it's been running smoothly."