1991 Ford F-350 HD Pickup Oil Capacity, Types, & Filters
Your essential guide to 1991 Ford F-350 HD Pickup oil change is here! No more searching – find all the critical oil specs for your 1991 Ford F-350 HD Pickup, 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 F-350 HD Pickup oil change!
Scroll Table ➜
| Engine & Code | Oil Capacity | Oil Viscosity/Type | Oil Filter |
|---|---|---|---|
| 4.9L 6-cylinder [Y] Y | N/A | N/A | Ford FL-1-A |
| 5.8L 8-cylinder [H] H | 6 quarts (with filter) | SAE 5W-30 (All TEMPS) | Ford FL-1-A |
| 7.3L 8-cylinder [G] G | 9.8 quarts (with filter) | SAE 10W-30 (Below 32°C) SAE 15W-40 (Above -18°C) 30 (Above 0°C) | Ford FL-1-A |
| 7.5L 8-cylinder [M] M Diesel | 6 quarts (with filter) | SAE 5W-30 (All TEMPS) | Ford FL-784-A Ford E3TZ6731B |
Select Your 1991 Ford F-350 HD Pickup Engine Option
4.9L 6-cylinder Engine Code [Y] Y
Engine:
4.9L 6-cylinder [Y] Y [aka 4.9L L6 (Gas)]
Body & Trims:
Custom, XL, XLT Lariat
Oil Capacity:
N/A
Oil Viscosity/Type:
N/A
OEM Oil Filter:
Oil Filter Replaces:
E7TZ-6731-A
5.8L 8-cylinder Engine Code [H] H
Engine:
5.8L 8-cylinder [H] H [aka 5.8L V8 (Gas)]
Body & Trims:
Custom, XL, XLT Lariat
Oil Capacity:
6 quarts (with filter)
Oil Viscosity/Type:
SAE 5W-30 (All TEMPS)
OEM Oil Filter:
Oil Filter Replaces:
E7TZ-6731-A
1991 Ford F-350 HD Pickup 5.8L 8-cylinder [H] H oil change details
Oil Grade:
SEO60
Oil Capacity:
6 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:
Wix Air Filter:
Coolant Capacity:
15.9 quarts - For models with an Automatic Transmission (AT) or a Manual Transmission (MT) with Air Conditioning (AC).
15.9 quarts - For models with Extra Capacity (XC).
14.8 quarts - For models WithOut Extra Capacity (XC).
14.8 quarts - For models with a Manual Transmission (MT) and WithOut Air Conditioning (AC).
Oil Drain Plug Torque:
15-25 ft/lbs (Oil Drain Plug)
Notes:
N/A
7.3L 8-cylinder Engine Code [G] G
Engine:
7.3L 8-cylinder [G] G [aka 7.3L V8 (Diesel)]
Body & Trims:
Custom, XL, XLT Lariat
Oil Capacity:
9.8 quarts (with filter)
Oil Viscosity/Type:
SAE 10W-30 (Below 32°C)
SAE 15W-40 (Above -18°C)
30 (Above 0°C)
OEM Oil Filter:
Oil Filter Replaces:
E7TZ-6731-A
1991 Ford F-350 HD Pickup 7.3L 8-cylinder [G] G oil change details
Oil Grade:
SEO84
Oil Capacity:
9.8 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 10W-30 (Below 32°C)
SAE 15W-40 (Above -18°C)
30 (Above 0°C) - 30 is preferred.
Oil Drain Plug Torque:
28 ft/lbs (Oil Drain Plug)
Notes:
(1) In 2016 when the CK-4 standard was introduced, Ford superseded the original recommendation of ESE-M2C153-E with WSS-M2C171-F1. Ford Motor Company’s position on CK-4 engine oils is the following: Ford Motor Company maintains its recommendation for motor oils meeting the specific Ford WSS-M2C171-F1 specification instead of generic CK-4 oils for its 3.2L, 6.7L, and older diesel engines (4.5L, 6.0L, 6.4L, and 7.3L). This is due to tests showing some CK-4 formulations offered less wear protection than the CJ-4 oils licensed before 2016. As a result, Ford added specific requirements to its WSS-M2C171-F1 standard for better wear protection. As a result, Ford added specific requirements to its WSS-M2C171-F1 standard for better wear protection. Following the practice of many Original Equipment Manufacturers (OEMs), Ford recommends using oils that meet its own standard, the Ford Material Engineering Specification WSS-M2C171-F1.
7.5L 8-cylinder Engine Code [M] M Diesel
Engine:
7.5L 8-cylinder [M] M Diesel [aka 7.5L V8 (Gas)]
Body & Trims:
Custom, XL, XLT Lariat
Oil Capacity:
6 quarts (with filter)
Oil Viscosity/Type:
SAE 5W-30 (All TEMPS)
OEM Oil Filter:
Oil Filter Replaces:
E3TZ-6731-A, FL-784
1991 Ford F-350 HD Pickup 7.5L 8-cylinder [M] M Diesel oil change details
Oil Grade:
SEO60
Oil Capacity:
6 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)
Oil Drain Plug Torque:
15-25 ft/lbs (Oil Drain Plug)
Notes:
N/A