1999 Ford F-550 HD Pickup Oil Capacity, Types, & Filters
Your ultimate DIY maintenance guide for the 1999 Ford F-550 HD Pickup oil change is here! No more searching – find all the critical oil specs for your 1999 Ford F-550 HD Pickup, including exact engine oil capacity, the manufacturer recommended oil viscosity and type, and the correct OEM and aftermarket oil filters.
We cover all available engine options categorized by their specific engine codes, ensuring you get pinpoint accuracy for your specific vehicle configuration. Keep reading to discover everything required for a successful 1999 Ford F-550 HD Pickup oil change!
Scroll Table ➜
| Engine & Code | Oil Capacity | Oil Viscosity/Type | Oil Filter |
|---|---|---|---|
| 6.8L 10-cyl [F] F Diesel Turbo | 6 quarts (with filter) | SAE 5W-20 (All TEMPS) | Ford FL-1995-A |
| 7.3L 8-cylinder [S] S | 15 quarts (with filter) | SAE 0W-30 (Below -18°C) SAE 10W-30 (-23 To 32°C) SAE 15W-40 (Above -12°C) SAE 5W-30 (Below -1°C) | Ford FL-820-S |
Select Your 1999 Ford F-550 HD Pickup Engine Option
6.8L 10-cyl Engine Code [F] F Diesel Turbo
Engine:
6.8L 10-cyl [F] F Diesel Turbo [aka 6.8L V10 (Gas)]
Body & Trims:
Lariat, XL, XLT
Oil Capacity:
6 quarts (with filter)
Oil Viscosity/Type:
SAE 5W-20 (All TEMPS)
OEM Oil Filter:
Oil Filter Replaces:
F4TZ-6731-A, FL-1995
1999 Ford F-550 HD Pickup 6.8L 10-cyl [F] F Diesel Turbo oil change details
Oil Grade:
SEO15
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 Drain Plug Torque:
17 ft/lbs (Oil Drain Plug)
Notes:
N/A
7.3L 8-cylinder Engine Code [S] S
Engine:
7.3L 8-cylinder [S] S [aka 7.3L V8 (Diesel)]
Body & Trims:
Lariat, XL, XLT
Oil Capacity:
15 quarts (with filter)
Oil Viscosity/Type:
SAE 0W-30 (Below -18°C)
SAE 10W-30 (-23 To 32°C)
SAE 15W-40 (Above -12°C)
SAE 5W-30 (Below -1°C)
OEM Oil Filter:
Oil Filter Replaces:
F1AZ-6731-A
1999 Ford F-550 HD Pickup 7.3L 8-cylinder [S] S oil change details
Oil Grade:
SEO84
Oil Capacity:
15 quarts. (with filter). Capacity is with the filter. For EARLY MODELS, the oil level should not be higher than 1/2 inch (12 mm) below the maximum mark on the dipstick. For LATE MODELS, the oil level should not be higher than 1/8 inch (3 mm) above the FULL line.
Oil Viscosity/Type:
SAE 0W-30 (Below -18°C)
SAE 10W-30 (-23 To 32°C)
SAE 15W-40 (Above -12°C)
SAE 5W-30 (Below -1°C)
Oil Drain Plug Torque:
N/A
Notes:
In 2016, with the introduction of the American Petroleum Institute (API) CK-4 standard, Ford superseded its original recommendation of WSS-M2C171-C with the new WSS-M2C171-F1 specification. Ford's official stance is to continue recommending motor oils meeting Ford's WSS-M2C171-F1 specification over standard CK-4 oils for its 3.2L, 6.7L, and older diesel engines (4.5L, 6.0L, 6.4L, and 7.3L). This is because testing on some CK-4 oils revealed inadequate wear protection compared to previous CJ-4 formulas. To address this, Ford's WSS-M2C171-F1 standard includes extra requirements for added wear protection. Similar to other diesel engine manufacturers, Ford advises using oils that meet its specific internal Original Equipment Manufacturer (OEM) standard, which is the Ford Material Engineering Specification WSS-M2C171-F1.
People also ask – 1999 Ford F-550 HD Pickup
What is the oil capacity of a 1999 Ford F-550 HD Pickup?
Depending on the specific engine option, the 1999 Ford F-550 HD Pickup oil capacity ranges from 6 to 15 quarts. Here is the exact oil capacity breakdown for each available engine configuration:
• 6.8L 10-cyl ([F] F Diesel Turbo): 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.
• 7.3L 8-cylinder ([S] S): 15 quarts. (with filter). Capacity is with the filter. For EARLY MODELS, the oil level should not be higher than 1/2 inch (12 mm) below the maximum mark on the dipstick. For LATE MODELS, the oil level should not be higher than 1/8 inch (3 mm) above the FULL line.
Always check your dipstick after refilling to ensure the proper level.
What type of oil does a 1999 Ford F-550 HD Pickup use?
Across its 2 available engine configurations, the 1999 Ford F-550 HD Pickup uses the following motor oil viscosities: SAE 5W-20 (All TEMPS) and SAE 0W-30 (Below -18°C)SAE 10W-30 (-23 To 32°C)SAE 15W-40 (Above -12°C)SAE 5W-30 (Below -1°C). Using the correct manufacturer-approved oil weight is crucial for engine health. Here are the specific oil type requirements by engine:
• 6.8L 10-cyl ([F] F Diesel Turbo):Grade: SEO15
SAE 5W-20 (All TEMPS) - This specification has been updated from SAE 5W-30 to SAE 5W-20 based on a Technical Service Bulletin from the manufacturer. SAE 5W-20 is now the preferred viscosity.
• 7.3L 8-cylinder ([S] S):
Grade: SEO84
SAE 0W-30 (Below -18°C)
SAE 10W-30 (-23 To 32°C)
SAE 15W-40 (Above -12°C)
SAE 5W-30 (Below -1°C)
What is the best oil filter for the 1999 Ford F-550 HD Pickup?
The proper oil filter depends on your exact engine code. The 1999 Ford F-550 HD Pickup utilizes the following premium aftermarket Wix oil filters across its lineup: 51372-EA and 51734-EA. Here is the specific OEM and aftermarket filter data for each engine:
• 6.8L 10-cyl ([F] F Diesel Turbo):OEM Filter: Ford FL-1995-A
Wix Filter: 51372-EA
• 7.3L 8-cylinder ([S] S):
OEM Filter: Ford FL-820-S
Wix Filter: 51734-EA
How often should I change the oil in my 1999 Ford F-550 HD Pickup?
For modern models running full synthetic oil, oil change intervals are typically every 7,500 to 10,000 miles. However, for older Ford F-550 HD Pickup generations (1985-2010) or those using conventional/synthetic-blend fluid, changing the oil and filter every 3,000 to 5,000 miles is highly recommended to prevent sludge buildup. Regardless of engine (6.8L 10-cyl and 7.3L 8-cylinder), you should change your oil at least once a year even if you don’t reach the mileage limit.