What oil does a 1982 Chevrolet Blazer 6.2L Diesel take?
For the 1982 Chevrolet Blazer with the 6.2L 8-cylinder diesel engine (Engine Code C), the required oil capacity is 7 quarts with a filter change. Recommended viscosities include 10W-30 for temperatures below 16°C, 15W-40 for -18 to 16°C, and SAE 30 is preferred for temperatures above 0°C. AMSOIL recommends using their Signature Series or Heavy-Duty synthetic diesel oils for superior protection.
AMSOIL product recommendations
Based on the vehicle specifications, the following AMSOIL products are recommended for your maintenance needs:
Engine Oil Options
| Product Name | Viscosity | Code |
|---|---|---|
| AMSOIL Signature Series 10W-30 Max-Duty Diesel Oil | 10W-30 | DTTQT-EA |
| AMSOIL 10W-30 Heavy-Duty Synthetic Diesel Oil | 10W-30 | ADNQT-EA |
| AMSOIL Signature Series 5W-30 Max-Duty Diesel Oil | 5W-30 | DHDQT-EA |
Oil Filter Options
Coolant & Transmission Fluids
| Component | Product Name | Code |
|---|---|---|
| Coolant | AMSOIL Passenger Car & Light Truck Antifreeze | ANTPC1G-EA |
| Coolant | AMSOIL Propylene Glycol Antifreeze | ANT1G-EA |
| ATF (THM350C) | AMSOIL Signature Series Fuel-Efficient ATF | ATLPK-EA |
| ATF (THM350C) | AMSOIL OE Fuel-Efficient ATF | OTLQT-EA |
| ATF (THM700-R4) | AMSOIL Signature Series Fuel-Efficient ATF | ATLPK-EA |
Engine Oil Specifications and Details
Maintaining the correct oil viscosity is critical for the longevity of the 6.2L diesel engine. The AMSOIL lookup provides specific guidance based on operating temperatures.
Oil Viscosity & Grade
| Condition | Recommended Viscosity |
|---|---|
| Below 16°C | 10W-30 |
| -18 to 16°C | 15W-40 |
| Above 0°C | SAE 30 (Preferred) |
Oil Specification: CF-4
Service Capacities & Torque
| Metric | Value |
|---|---|
| Oil Capacity (with filter) | 7 quarts |
| Oil Drain Plug Torque | 13-20 ft/lbs |
Note: Always check the oil level after refilling.
Diesel maintenance notes for this vehicle
- Filter Maintenance: The AMSOIL Oil Filter (EAO24-EA) provides 99 percent filtering efficiency at 20 microns and is designed to offer extended service life.
- Coolant Capacity: Depending on your configuration, capacity is approximately 18 quarts with AC or 17.4 quarts without AC.
- Transmission Note: For THM350C and THM700-R4 transmissions, the manufacturer’s technical service bulletin indicates that specifications have been updated from Dexron II or III to Dexron VI.
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 and maintains proper viscosity. | Not confirmed from source data. |
| Contaminants | Small particles cause abrasive wear. | AMSOIL Oil Filter | Provides high efficiency at 20 microns to reduce engine wear. | Not confirmed from source data. |
Common maintenance concerns for this vehicle
Owners of vintage diesel vehicles like the 1982 Blazer should focus on several key areas:
- Fuel System Integrity: Ensuring clean fuel and proper injector function is vital for older mechanical diesels.
- Cooling Efficiency: Regular inspection of hoses, gaskets, and coolant levels to prevent overheating.
- Glow Plug Functionality: Essential for reliable starting in colder temperatures.
- Drivetrain Inspection: Given its truck-based architecture, regular checks of the suspension and drivetrain are recommended.
Recall, TSB, and manufacturer communication notes
NHTSA research indicates several historical recalls for the 1982 Chevrolet Blazer:
- Oil Filter Recall: Certain Honeywell FRAM Racing HP4 and HP8 oil filters (date codes A61451 through A72571) were recalled because gaskets could become pliable under high heat, potentially causing oil loss and fire risk.
- Exterior Lighting: Some replacement lamps failed to meet safety standards regarding amber side reflectors.
- Wheel/Lug Issues: A recall noted that rear brake drum balance weights might interfere with aluminum wheels, potentially loosening lug nuts.
Disclaimer: Always verify open recalls by VIN through an official dealer or the NHTSA website.
About this vehicle
The 1982 Chevrolet Blazer is a significant part of General Motors’ full-size SUV history, belonging to the K5 Blazer lineage built on the C/K pickup chassis. Produced between 1969 and 1995, these vehicles are recognized for their rugged utility and heavy-duty truck-based architecture, often featuring removable rear tops.
This specific model is equipped with a 6.2L 8-cylinder diesel engine (Engine Code C). It is important to distinguish this from the modern GM Duramax family; the 1982 6.2L belongs to an earlier generation of mechanical diesel technology. Maintenance for these vintage engines differs significantly from modern common-rail systems, often requiring a focus on fuel system integrity and cooling efficiency.
Typical use cases for this era of Blazer include off-road utility, towing, or use as a classic vehicle enthusiast’s platform. Because it is a vintage diesel platform, regular inspection of heavy-duty components like the suspension and drivetrain is common due to its origins as a rugged work vehicle.
Common questions about this vehicle’s diesel oil and maintenance
How much oil does my 1982 Blazer 6.2L Diesel take?
It requires 7 quarts of oil when performing a service that includes a filter change.
What is the best viscosity for my diesel engine in winter?
For temperatures below 16°C, 10W-30 is recommended. If temperatures are between -18 and 16°C, 15W-40 may be used.
Can I use modern Duramax oil in my 1982 Blazer?
The AMSOIL lookup notes that maintenance requirements for these older mechanical diesel systems differ significantly from modern common-rail engines. You should follow the specifications for the 6.2L engine (CF-4).
Does AMSOIL offer a filter for my Blazer?
Yes, AMSOIL lists the EAO24-EA filter for this application.
What should I do about the FRAM oil filter recall?
If you are using older replacement filters, check if they match the recalled date codes. Contact customer service or a dealer to verify your components.
How often should I change my coolant?
AMSOIL products like the ANTPC1G-EA are designed to protect for up to 150,000 miles or 5 years, but you should always consult your owner’s manual for specific intervals.
Verification Disclaimer: While we strive for accuracy, please verify all capacities, torque specifications, and fluid requirements with a dedicated service manual or official GM literature before performing maintenance.