You refill the gearbox by taking out the speedo drive near the firewall and only put in 2.5 Ltrs
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)
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 )
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
I do not believe the Festiva has a low oil light.... the light you are seeing is likely for oil pressure which has nothing to do with how much oil you have in your engine. you could have a bad oil pump or the gap between your oil pump pickup and oil pan has been smashed out. theres also 100 other reasons that i don't have room to write.
well the best thing to actually run is a straight oil like a 40w or 30w when the motor gets older it just seals it up that much better and makes it last longer i have a festiva toguhesty car ever