I've been driving my 89 7.3 idi and its been sitting on annd off for a year. But I drove it the other day after filling it up and only got 96 miles to a full 18 gallon tank that turns out to only 5.6mpg clearly not right so I started with replacing the air filter. Whatels can I do to gain mpg...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.