Its the cylinder closest to the serpentine belts
A 1991 1.6 liter is 1 3 4 2
I have a 1991 LeMans, all I had to do was go to Autozone.
Try a engine reconditioning shop where they sell rebuilt engines, look in the yellow pages in your area.
Driver's side front
8.1 US quarts
I have a 1990 Pontiac LeMans with a 1.6 Daewoo motor. The firing order is 1-2-4-3
Try eBay for a cheap factory shop manual. It is in mine.
set timing on 1991 c2500 5.7 liter
changing the thermostat in a 1991 geo metro 1.3 liter
In a 1991 Ford Mustang : The 5.0 liter V8 is rated at ( 225 horsepower from the factory )
Manual: 29 mpg / 38 mpg Automatic: : 27 mpg / 33 mpg
The first one on the driver side going from right to left.