it depends on your climate and driving conditions. 10W-40 is the best bet for all purpose use. if it is colder where you are, consider a 5W-30, for hotter areas, perhaps a 20W-50.
FLORA
The Geo Metro hatchback may take up to 4 or 4.5 quarts of oil.
what about it?
I'm not 100% on this, but I think it is about an inch above the oil filter, there is a wire connected to it, and it goes into the motor
The type of oil that should be put into a 1995 Geo Metro is 5 W 30. The car uses approximately 5 quarts of oil.
Was told a 93 Geo Metro with high miles should us 10W30.
look in manual
4 liters
3.75 qts
It is 17mm.
If the car does not smoke badly this may mean you are using the wrong weight motor oil. Use the proper weight oil that a dealer will recommend.
four and one half