3.6 Quarts (including filter)
5w-30
My 1989 festiva owner manual states: 3.9 quarts with a filter change.
oil capacity 91 ford 7.3 diesel
5 1/2 quarts
i have a 91 Festiva, but around that range they are pretty much the same so it is 3 quarts of oil
According to my Chilton's book : For a 1991 Ford Crown Victoria ( 5.0 / 302 and 5.8 / 351 ) With engine oil filter change ( 5.0 U.S. quarts )
Mounted on the engine block.
Check your PCV valve.
CAPACITIESEngine, with Wix # 51515 Filter..........6.0 quartsHope This Helps.
Is your PCV valve working okay?
According to my Chilton's Auto Repair Manual : For a 1988 Ford Festiva that has the 1.3 liter / 81 cubic inch four cylinder : With engine oil filter change : ( 3.9 U.S. quarts )
The 1991 2.2 Plymouth Sundance America has a oil capacity of 4.5 Quarts