When replacing spark plugs in 2012 Civic, is it necessary to use motorvac fuel i

What is your question?

When replacing spark plugs in a 2012 Civic, is it necessary to use motorvac fuel injection cleaning? Is there any benefit in this? The car has 103k miles (mostly highway) and runs great.

What makes this problem better or worse?

n/a

How long has your 2012 Honda Civic had this problem?

n/a