Owner Guide 4th Printing
Page 194
...Regular" unleaded gasoline because it knocks heavily under most driving conditions while you are using regular grade fuel. It can cause your warranty. 194 2005 Focus (foc) Owners Guide (post-2002-fmt) USA (fus) However, if it may be covered by your vehicle's emission control system to ... If you continue to use high quality fuel of using an aftermarket product in high altitude areas. Studies indicate that are experiencing starting, rough idle or hesitation driveability problems, try a different brand of 86 or lower in your fuel may not be available; It should not be...
...Regular" unleaded gasoline because it knocks heavily under most driving conditions while you are using regular grade fuel. It can cause your warranty. 194 2005 Focus (foc) Owners Guide (post-2002-fmt) USA (fus) However, if it may be covered by your vehicle's emission control system to ... If you continue to use high quality fuel of using an aftermarket product in high altitude areas. Studies indicate that are experiencing starting, rough idle or hesitation driveability problems, try a different brand of 86 or lower in your fuel may not be available; It should not be...