1991 Ford Aerostar Oil Capacity, Types, & Filters

Your essential guide to 1991 Ford Aerostar oil change is here! No more searching – find all the critical oil specs for your 1991 Ford Aerostar, including oil capacity, recommended oil viscosity (type), and the correct oil filter.

We cover all engine options, categorized by their specific engine codes, ensuring you get the right information for your specific configuration. Keep reading to discover everything you need for your next 1991 Ford Aerostar oil change!

Scroll Table ➜

Engine & Code	Oil Capacity	Oil Viscosity/Type	Oil Filter
3.0L 6-cylinder [X] X	4.5 quarts (with filter)	SAE 5W-30 (All TEMPS)	Ford FL-1-A
4.0L 6-cylinder [U] U	5 quarts (with filter)	SAE 5W-30 (All TEMPS)	Ford FL-400-S

Select Your 1991 Ford Aerostar Engine Option

3.0L 6-cylinder Engine Code [X] X

Engine:

3.0L 6-cylinder [X] X [aka 3.0L V6 (Gas)]

Body & Trims:

Base, Eddie Bauer, XL, XL Plus, XL Sport, XLT, XLT Plus, XLT Sport

Oil Capacity:

4.5 quarts (with filter)

Oil Viscosity/Type:

SAE 5W-30 (All TEMPS)

OEM Oil Filter:

Ford FL-1-A

Oil Filter Replaces:

E7TZ-6731-A

1991 Ford Aerostar 3.0L 6-cylinder [X] X oil change details

Oil Grade:

SEO60

Oil Capacity:

4.5 quarts. (with filter). Capacity is with the filter installed. When refilling, remove the dipstick to provide proper venting and allow oil to flow into the crankcase smoothly. After refilling, check the oil level and add more if needed.

Oil Viscosity/Type:

SAE 5W-30 (All TEMPS)

Name of Oil Filter:

N/A

Wix Oil Filter:

51516-EA

Wix Air Filter:

46126-EA

Coolant Capacity:

12.2 quarts

Oil Drain Plug Torque:

10 ft/lbs (Oil Drain Plug)

Notes:

N/A

4.0L 6-cylinder Engine Code [U] U

Engine:

4.0L 6-cylinder [U] U [aka 4.0L V6 (Gas)]

Body & Trims:

Base, Eddie Bauer, XL, XL Plus, XL Sport, XLT, XLT Plus, XLT Sport

Oil Capacity:

5 quarts (with filter)

Oil Viscosity/Type:

SAE 5W-30 (All TEMPS)

OEM Oil Filter:

Ford FL-400-S

Oil Filter Replaces:

E4FZ-6731-A, F8CZ-6731-AA

1991 Ford Aerostar 4.0L 6-cylinder [U] U oil change details

Oil Grade:

SEO60

Oil Capacity:

5 quarts. (with filter). Capacity is with the filter installed. When refilling, remove the dipstick to provide proper venting and allow oil to flow into the crankcase smoothly. After refilling, check the oil level and add more if needed.