For the 1985 Peugeot 505 with the 2.5L 4-cylinder Engine Code [6] Diesel Turbo, the engine oil capacity is 5.3 quarts (with filter). Recommended viscosities include 10W-30 for temperatures below 14°C, 10W-40 for all temperatures, and 15W-40 for temperatures above -10°C. AMSOIL recommends using Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil (DEOQT-EA) for superior wear protection and efficiency.
What oil does a 1985 Peugeot 505 2.5L Diesel Turbo take?
The engine requires an oil with a CF grade specification. Depending on your operating environment, the following viscosities are recommended: 10W-30 for temperatures below 14°C, 10W-40 for all temperature ranges, and 15W-40 for environments above -10°C.
AMSOIL product recommendations
Based on the AMSOIL lookup data, the following products are recommended for your 1985 Peugeot 505 diesel engine and drivetrain components.
Engine Oil Recommendations
| Product Name | Part Code |
|---|---|
| AMSOIL Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil | DEOQT-EA |
| AMSOIL 5W-40 Heavy-Duty 100% Synthetic Diesel Oil | ADOQT-EA |
Coolant & Antifreeze Recommendations
| Product Name | Part Code |
|---|---|
| AMSOIL Passenger Car & Light Truck Antifreeze & Coolant | ANTPC1G-EA |
| AMSOIL Propylene Glycol Antifreeze and Engine Coolant | ANT1G-EA |
Transmission Fluid Recommendations
| Product Name | Part Code |
|---|---|
| AMSOIL Signature Series Multi-Vehicle 100% Synthetic ATF | ATFPK-EA |
| AMSOIL OE Multi-Vehicle 100% Synthetic ATF | OTFQT-EA |
Manual Transmission Oil Recommendations
| Product Name | Part Code |
|---|---|
| AMSOIL Premium Protection 10W-40 100% Synthetic Motor Oil | AMOQT-EA |
| AMSOIL Extended-Life 10W-40 100% Synthetic Motor Oil | XLOQT-EA |
Engine Oil Specifications
| Viscosity | Condition |
|---|---|
| 10W-30 | Below 14°C |
| 10W-40 | All Temperatures |
| 15W-40 | Above -10°C |
Engine Oil Capacity
| Description | Capacity |
|---|---|
| Oil capacity with filter change | 5.3 quarts |
Note: After refilling, always check the oil level manually.
Automatic Transmission Fluid Specifications
The 1985 Peugeot 505 utilizes different capacities depending on whether you have a 3-speed or 4-speed automatic transmission.
3-Speed Automatic (3HP-22)
| Fill Type | Capacity |
|---|---|
| Initial Fill | 1.7 quarts |
| Total Fill | 5.5 quarts |
4-Speed Automatic (4HP-22)
| Fill Type | Capacity |
|---|---|
| Initial Fill | 2.7 quarts |
| Total Fill | 7.9 quarts |
Manual Transmission Fluid Specifications
For the BA 10/5 (5-SPD) and BA 7/5 (5-SPD) manual transmissions, the required viscosity is 10W-40 for all temperatures. The capacity for these units is 3.4 pints.
Coolant Specifications
The cooling system has a total capacity of 10.6 quarts. AMSOIL offers both pre-mixed and concentrated options to maintain thermal management in this diesel engine.
Coolant Options
| Product Type | Formulation Note |
|---|---|
| Passenger Car & Light Truck Antifreeze | Ethylene glycol 50/50 pre-mix |
| Propylene Glycol Antifreeze | Concentrated (requires mixing with distilled water) |
Diesel maintenance notes for this vehicle
- Turbocharger Care: Regular replacement of air filters is critical for maintaining turbocharger efficiency.
- Fuel Integrity: Maintain the diesel fuel system to ensure proper combustion and turbo health.
- Oil Level Monitoring: Due to the nature of older diesel engines, always check oil levels after a refill.
- Filter Maintenance: While specific filter part numbers are not confirmed from source data, regular service is essential for engine longevity.
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. | DEOQT-EA | Delivers up to 6X more wear protection. | Requires proper service intervals. |
| Extreme Temperatures | Affects viscosity and engine startup. | ADOQT-EA | Excels in extreme temperatures. | Not a substitute for correct viscosity choice. |
| Soot & Deposits | Diesel combustion produces soot. | XLOQT-EA | Provides high cleaning power. | Does not repair existing damage. |
Common maintenance concerns for this vehicle
Owners of the 1985 Peugeot 505 should consider the following practical checks:
- Turbocharger Health: Monitor for unusual noises or loss of boost, as thermal management is vital.
- Drivetrain Wear: As a rear-wheel drive model, inspect rear-wheel drive components regularly.
- Fuel System Integrity: Ensure there are no leaks in the diesel fuel lines to prevent air entry or contamination.
Recall, TSB, and manufacturer communication notes
NHTSA research indicates one recall for this model year:
- Campaign 84V151000: Related to the fuel system (gasoline storage tank assembly filler pipe and cap). The report states fuel caps may not seal properly, which could cause the gasket to swell. A replacement cap was provided as a remedy.
Note: This is based on historical records. Owners should always verify current open recalls by checking their specific VIN through official manufacturer channels or the NHTSA website.
About this vehicle
The 1985 Peugeot 505 represents a significant era in Peugeot’s history, serving as the manufacturer’s final rear-wheel drive model. Produced between 1979 and 1992, the 505 was designed as a large family car and saw extensive global production, including facilities in Argentina, China, Thailand, Indonesia, and Nigeria. Given its long production run and international presence, it is often regarded as a robust vehicle suitable for various driving environments.
This specific model features a 2.5L 4-cylinder diesel turbo engine. While the provided research snippets do not explicitly detail the technical specifications of the ‘6 6’ engine code or its exact output, Peugeot utilized various diesel engines across their lineup during this period. Owners should verify the exact engine family and its specific service requirements through a workshop manual.
From a maintenance perspective, owners of this classic Peugeot should focus on the longevity of the rear-wheel drive components and the thermal management of the turbocharger. As a vehicle from the mid-1980s, it may utilize older transmission technologies; for instance, ZF produced 4-speed automatic transmissions (such as the 4HP) used in many passenger cars during this era, which may be relevant if this specific 505 is an automatic variant.
Common questions about this vehicle’s diesel oil and maintenance
What is the engine oil capacity for my Peugeot 505 Diesel Turbo?
The capacity is 5.3 quarts when performing a service that includes a filter change. Always check the level after refilling.
Which viscosity should I use in winter?
For temperatures below 14°C, the AMSOIL lookup recommends a 10W-30 viscosity.
Does my automatic transmission need different fluid than my manual?
Yes. The automatic transmission (3HP-22 or 4HP-22) requires specific ATF such as ATFPK-EA, while the manual transmission requires 10W-40 motor oil like AMOQT-EA.
How much coolant does the 2.5L engine hold?
The cooling system capacity is approximately 10.6 quarts.
Can I use a concentrate for my coolant?
Yes, AMSOIL offers a concentrated Propylene Glycol option (ANT1G-EA), but it requires mixing with distilled or high-quality water.
How do I check for active recalls?
While NHTSA records show a past recall regarding fuel caps, you should always contact a Peugeot dealer or use the NHTSA VIN lookup tool to confirm if there are any outstanding recalls for your specific vehicle.
Disclaimer: This information is derived from provided source data. Always consult your owner’s manual or a certified mechanic before performing maintenance.