{"id":444,"date":"2026-06-12T21:48:33","date_gmt":"2026-06-13T01:48:33","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1981-peugeot-505-2-3l-4-cyl-diesel-maintenance-guide\/"},"modified":"2026-06-12T21:48:33","modified_gmt":"2026-06-13T01:48:33","slug":"1981-peugeot-505-2-3l-4-cyl-diesel-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/1981-peugeot-505-2-3l-4-cyl-diesel-maintenance-guide\/","title":{"rendered":"1981 Peugeot 505 2.3L Diesel Maintenance Guide: Oil & Fluid Specs"},"content":{"rendered":"
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\"AMSOIL
AMSOIL diesel oil guide for trucks, vans, SUVs and diesel engines<\/figcaption><\/figure>\n

For the 1981 Peugeot 505 with the 2.3L 4-cylinder XD2C diesel engine, the required oil capacity is 5.3 quarts<\/strong> (including a filter change). The recommended viscosity for all temperatures is 10W-40<\/strong>, or 15W-40<\/strong> for temperatures above -10\u00b0C. AMSOIL recommends using Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil<\/a> (DEOQT-EA<\/a>) for superior protection.<\/p>\n

What oil does a 1981 Peugeot 505 2.3L Diesel take?<\/h2>\n

The 1981 Peugeot 505 with the XD2C diesel engine requires an oil viscosity of 10W-40 for all temperatures, or 15W-40 when operating above -10\u00b0C. The AMSOIL lookup specifies an oil grade of CF for this application.<\/p>\n

AMSOIL product recommendations<\/h2>\n

Below are the primary AMSOIL lubrication and cooling products identified for your 1981 Peugeot 505 diesel engine and drivetrain components.<\/p>\n

Engine Oil Recommendations<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nPart Code<\/th>\n<\/tr>\n
AMSOIL Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil<\/td>\nDEOQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL 5W-40 Heavy-Duty 100% Synthetic Diesel Oil<\/td>\nADOQT-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Transmission & Differential Recommendations<\/h3>\n
\n\n\n\n\n\n\n\n
Component<\/th>\nProduct Name<\/th>\nPart Code<\/th>\n<\/tr>\n
Automatic Transmission<\/td>\nAMSOIL Signature Series Multi-Vehicle 100% Synthetic ATF<\/td>\nATFPK-EA<\/a><\/td>\n<\/tr>\n
Automatic Transmission<\/td>\nAMSOIL OE Multi-Vehicle 100% Synthetic ATF<\/td>\nOTFQT-EA<\/a><\/td>\n<\/tr>\n
Manual Transmission<\/td>\nAMSOIL Premium Protection 10W-40 100% Synthetic Motor Oil<\/a><\/td>\nAMOQT-EA<\/a><\/td>\n<\/tr>\n
Manual Transmission<\/td>\nAMSOIL Extended-Life 10W-40 100% Synthetic Motor Oil<\/a><\/td>\nXLOQT-EA<\/a><\/td>\n<\/tr>\n
Rear Differential<\/td>\nAMSOIL SEVERE GEAR\u00ae 80W-90 100% Synthetic Gear Lube<\/a><\/td>\nAGLPK-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Coolant & Brake Fluid<\/h3>\n
\n\n\n\n\n\n
Component<\/th>\nProduct Name<\/th>\nPart Code<\/th>\n<\/tr>\n
Engine Coolant<\/td>\nAMSOIL Passenger Car & Light Truck Antifreeze & Coolant<\/td>\nANTPC1G-EA<\/a><\/td>\n<\/tr>\n
Engine Coolant<\/td>\nAMSOIL Propylene Glycol Antifreeze and Engine Coolant<\/td>\nANT1G-EA<\/a><\/td>\n<\/tr>\n
Clutch\/Brake Fluid<\/td>\nAMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid<\/td>\nBFLVCN-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Engine Oil Specifications<\/h3>\n
\n\n\n\n\n\n
Specification<\/th>\nDetails<\/th>\n<\/tr>\n
Oil Grade<\/td>\nCF<\/td>\n<\/tr>\n
Viscosity (All Temps)<\/td>\n10W-40<\/td>\n<\/tr>\n
Viscosity (Above -10\u00b0C)<\/td>\n15W-40<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Engine Oil Capacity<\/h3>\n
\n\n\n\n
Condition<\/th>\nCapacity<\/th>\n<\/tr>\n
With Filter Change<\/td>\n5.3 quarts<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Note: Always check the oil level after refilling.<\/em><\/p>\n

Engine Oil Details and Performance<\/h2>\n

For high-performance diesel maintenance, AMSOIL offers two primary synthetic options for this engine.<\/p>\n

AMSOIL Signature Series 5W-40 Max-Duty Diesel Oil<\/h3>\n