For the 1992 Ford F-250 equipped with the 7.3L 8-cylinder Engine Code M Diesel, the oil capacity is 9.8 quarts (including filter replacement). Recommended viscosities include 10W-30 for temperatures below 32°C, 15W-40 for temperatures above -18°C, and SAE 30 is preferred for temperatures above 0°C. AMSOIL recommends the Signature Series 10W-30 Max-Duty Diesel Oil for superior wear protection.
What oil does a 1992 Ford F-250 7.3L Diesel take?
The engine requires an oil grade of SEO84. Depending on your operating environment, you should select the appropriate viscosity: 10W-30 for temperatures below 32°C, 15W-40 for temperatures above -18°C, or SAE 30 if temperatures remain above 0°C.
AMSOIL product recommendations
Based on the AMSOIL lookup data, the following products are recommended for your 1992 Ford F-250 7.3L Diesel:
Engine Oil & Filter
| Product Name | Part Code |
|---|---|
| AMSOIL Signature Series 10W-30 100% Synthetic Max-Duty Diesel Oil | DTTQT-EA |
| AMSOIL 10W-30 Heavy-Duty 100% Synthetic Diesel Oil | ADNQT-EA |
| WIX Oil Filter | 51742-EA |
Coolant & Transmission
| Product Name | Part Code |
|---|---|
| AMSOIL Passenger Car & Light Truck Antifreeze & Coolant | ANTPC1G-EA |
| AMSOIL Propylene Glycol Antifreeze and Engine Coolant | ANT1G-EA |
| AMSOIL Signature Series Multi-Vehicle 100% Synthetic ATF | ATFPK-EA |
| AMSOIL OE Multi-Vehicle 100% Synthetic ATF | OTFQT-EA |
Air & Fuel Filters
No specific air filter or fuel filter recommendations are available from the source data.
Engine Oil Specifications
The AMSOIL lookup note references Ford Material Engineering Specification WSS-M2C171-F1. It notes that Ford superseded the original ESE-M2C153-E recommendation with this specification. Furthermore, Ford has indicated that for older diesel engines like the 7.3L, they recommend oils meeting WSS-M2C171-F1 rather than CK-4, as some CK-4 formulations may show inadequate wear protection compared to earlier CJ-4 formulations.
Engine Oil Capacity & Service
| Description | Value |
|---|---|
| Oil Capacity (with filter) | 9.8 quarts |
| Oil Drain Plug Torque | 28 ft/lbs |
Maintenance Tip: When refilling, remove the dipstick to provide adequate venting and allow oil to flow into the crankcase. After refill, always check the oil level and top off as needed.
How much transmission fluid does it take?
The capacity depends on your specific automatic transmission model. For the 4-speed E4OD, the total fill is 15.5 quarts, with an initial fill of 8.5 quarts. For the 3-speed C6, the total fill is 11.8 quarts, with an initial fill of 5.9 quarts.
Note: The AMSOIL lookup notes that this specification has been updated from Mercon to Mercon V per TSB 06-14-4.
Diesel maintenance notes for this vehicle
- Coolant Capacity: The cooling system capacity is 29.1 quarts.
- Coolant Types: AMSOIL offers a 50/50 pre-mix (ANTPC1G-EA) or a concentrated propylene glycol version (ANT1G-EA) that requires mixing with distilled or high-quality water.
- Filter Importance: Using premium media filters, such as the WIX Oil Filter (51742-EA), can help reduce engine wear and maintain OEM drain intervals.
Common diesel oil-related concerns and how AMSOIL products may help
| Concern | Why it matters | AMSOIL Product | How it may help | Limitation |
|---|---|---|---|---|
| Engine Wear | Diesel engines face high pressure and friction. | Signature Series Diesel Oil | Delivers up to 6X more wear protection. | Requires regular oil changes. |
| Extreme Temperatures | Viscosity changes can affect lubrication. | Heavy-Duty Synthetic Diesel Oil | Excels in extreme temperatures. | Not confirmed from source data. |
| Transmission Heat | Towing causes fluid degradation. | Signature Series ATF | Withstands heavy towing and elevated temperatures. | Not confirmed from source data. |
Common maintenance concerns for this vehicle
Based on NHTSA consumer complaints, owners of 1992 F-250 models have reported issues regarding:
Note: NHTSA complaints are owner reports and should not be treated as verified defects.
Recall, TSB, and manufacturer communication notes
NHTSA research indicates the following for the 1992 Ford F-250:
- Exterior Lighting: A recall (Campaign 06E049000) was noted regarding noncompliant replacement lamps that lack amber side reflectors.
- Tires: A safety improvement campaign (Campaign 01X001000) addressed Firestone Wilderness AT tires due to potential tread separation.
Disclaimer: Always verify current recalls and open service campaigns by using your specific VIN through an authorized Ford dealer or the NHTSA website.
About this vehicle
The 1992 Ford F-250 is part of the ninth generation of the Ford F-Series, a lineup produced between 1992 and 1998. This era represents the third generation of the F-Series body and chassis architecture introduced in 1980, which remained a foundational design for Ford trucks through the late 1990s.
This specific model features the 7.3L diesel variant. Unlike the later ‘Super Duty’ models introduced in 1999, which were designed as dedicated heavy-duty variants with specialized chassis components, the ninth-generation F-250 was part of the traditional F-Series range positioned between consumer-oriented F-150s and medium-duty commercial trucks.
Because these vehicles were built during a period of significant mechanical longevity in Ford’s truck history, they are often subject to high-mileage maintenance requirements. Typical use cases include light-to-medium duty hauling and towing. Owners frequently focus on fuel system integrity, cooling system maintenance, and turbocharger health as critical components for diesel performance. Maintenance and parts sourcing often focus on the specific ninth-generation chassis and engine configurations rather than modern Super Duty platforms.
Common questions about this vehicle’s diesel oil and maintenance
What is the oil capacity for my 1992 F-250 7.3L Diesel?
The capacity is 9.8 quarts when including a filter change.
Which viscosity should I use in winter?
For temperatures below 32°C, 10W-30 is recommended. If temperatures drop below -18°C, 15W-40 is appropriate.
Does Ford recommend CK-4 oil for this engine?
The AMSOIL lookup note states that Ford recommends meeting the WSS-M2C171-F1 specification rather than CK-4 for older 7.3L diesel engines to ensure adequate wear protection.
How much transmission fluid is needed for an E4OD?
The total fill for a 4-speed E4OD is 15.5 quarts, while the initial fill is 8.5 quarts.
Can I use any antifreeze in my cooling system?
AMSOIL offers options like the Passenger Car & Light Truck Antifreeze (ANTPC1G-EA) which is compatible with all other antifreeze and coolant colors.
How do I check my oil level correctly?
When refilling, remove the dipstick to allow for adequate venting. After refilling, check the level and top off as needed.
Disclaimer: This information is derived from provided source data. Always consult your owner’s manual or a certified mechanic before performing maintenance.