Questions & Answers for: Lincoln Mark VIII octane 2 0 1

Question about 1995 Mark VIII

My 1995 Lincoln Mark viii takes fuel of 91 octane

My 1995 Lincoln Mark viii takes fuel of 91 octane or higher. When refueling does it matter if i use 91 octane or 92 octane The higher the octane the cleaner the engine will stay.

Question about 1998 Mark VIII

1 Answer

1998 Lincoln Mark VIII sometimes stalls when idling in gear

...up. Fearing bad gas, I put in a can of IsoHeet and ran it through and filled the tank with 91 octane. It still stalled after that. The car did have a bad EGR valve replaced right after the ...

Question about 1997 Mark VIII

2 Answers

So, re: 97 Mark VIII, Thermo, coolant sending etc....all done seems Gd. Fan kicks on but ...when it's hot weather the car runs real bad like no power/ gonna blow up.

...fuel pressure can vapor lock if the engine is hot enough the gas will boil. The boiling point of 87 octane is 181 degrees Fahrenheit although gas is constantly being returned to the tank in order to ...