Is your PCV valve working okay?
5w-30
i have a 91 Festiva, but around that range they are pretty much the same so it is 3 quarts of oil
My 1989 festiva owner manual states: 3.9 quarts with a filter change.
Check your PCV valve.
Mounted on the engine block.
3.6 Quarts (including filter)
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 )
2001 ford winstar sport burning engine oil
I bought a 1989 Festiva LX which has the same 1.3L engine as the 1988 Festiva, and I used nothing but 10W30 Pennzoil in it. I changed both the Oil and the Oil Filter religiously and got 269,000 miles on that engine. Vaya con Dios, Chuck, CABGx3
I think the Festiva manual transmission uses ATF The auto parts store or the owners manual will tell you
If it is not burning any oil use 5w30. If it is burning any oil use 10w30.
You can check the automatic gearbox oil on a 1993 Ford Laser 1.5 using the oil stick.