{"id":754,"date":"2026-07-04T07:16:34","date_gmt":"2026-07-04T11:16:34","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2018-ram-promaster-2500-3-0l-4-cyl-diesel-turbo-maintenance-guide\/"},"modified":"2026-07-04T07:16:34","modified_gmt":"2026-07-04T11:16:34","slug":"2018-ram-promaster-2500-3-0l-4-cyl-diesel-turbo-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2018-ram-promaster-2500-3-0l-4-cyl-diesel-turbo-maintenance-guide\/","title":{"rendered":"2018 Ram ProMaster 2500 3.0L 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 2018 Ram ProMaster 2500 equipped with the 3.0L 4-cylinder Engine Code [D] EXG D Diesel Turbo, the engine oil capacity is 9.5 quarts (with filter). The recommended viscosity is 5W-30. AMSOIL recommends AMSOIL 5W-30 100% Synthetic Diesel Oil<\/a> (DP530QT-EA<\/a>) for outstanding protection in this diesel application.<\/p>\n

What oil does a 2018 Ram ProMaster 2500 3.0L Diesel take?<\/h2>\n

The 2018 Ram ProMaster 2500 with the 3.0L 4-cylinder diesel engine requires an oil viscosity of 5W-30 for all temperature ranges. The AMSOIL lookup identifies the SEO54 oil grade for this application. For optimal protection, AMSOIL recommends their 100% Synthetic Diesel Oil.<\/p>\n

AMSOIL product recommendations<\/h2>\n

Based on the AMSOIL lookup data, here are the recommended products for your 2018 Ram ProMaster 2500 3.0L Diesel Turbo.<\/p>\n

Engine Oil & Filters<\/h3>\n
\n\n\n\n
Product Name<\/th>\nPart Code<\/th>\n<\/tr>\n
AMSOIL 5W-30 100% Synthetic Diesel Oil<\/td>\nDP530QT-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Note:<\/strong> No specific oil filter recommendations are available from the source data.<\/p>\n

Coolant & Antifreeze<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nPart Code<\/th>\n<\/tr>\n
AMSOIL Passenger Car & Light Truck Antifreeze & Coolant<\/td>\nANTPC1G-EA<\/a><\/td>\n<\/tr>\n
AMSOIL Propylene Glycol Antifreeze and Engine Coolant<\/td>\nANT1G-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Transmission Fluids<\/h3>\n
\n\n\n\n\n\n
Product Name<\/th>\nPart Code<\/th>\n<\/tr>\n
AMSOIL Signature Series Multi-Vehicle 100% Synthetic ATF<\/td>\nATFPK-EA<\/a><\/td>\n<\/tr>\n
AMSOIL OE Multi-Vehicle 100% Synthetic ATF<\/td>\nOTFQT-EA<\/a><\/td>\n<\/tr>\n
AMSOIL 75W-90 Manual Transmission & Transaxle Gear Lube<\/td>\nMTGPK-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Brake & Steering Fluids<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nPart Code<\/th>\n<\/tr>\n
AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid<\/td>\nBFLVCN-EA<\/a><\/td>\n<\/tr>\n
AMSOIL 100% Synthetic Multi-Vehicle Power Steering Fluid<\/td>\nPSFCN-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Diesel Fuel Additives<\/h3>\n
\n\n\n\n\n\n
Product Name<\/th>\nPart Code<\/th>\n<\/tr>\n
AMSOIL Diesel Injector Clean Fuel Additive<\/td>\nadfpcn-ea<\/a><\/td>\n<\/tr>\n
AMSOIL Diesel Cetane Boost Fuel Additive<\/td>\nacbcn-ea<\/a><\/td>\n<\/tr>\n
AMSOIL Diesel Injector Clean + Cetane Boost Fuel Additive<\/td>\nadscn-ea<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Engine Oil Specifications<\/h3>\n
\n\n\n\n
Viscosity<\/th>\nAMSOIL Lookup Oil Grade<\/th>\n<\/tr>\n
5W-30 (All TEMPS)<\/td>\nSEO54<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Engine Oil Capacity<\/h3>\n
\n\n\n\n
Description<\/th>\nCapacity<\/th>\n<\/tr>\n
Oil Capacity with filter<\/td>\n9.5 quarts<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Maintenance Note:<\/strong> After refilling, always check the oil level. When performing an oil change, use only an OE drain plug and install a new washer on the drain bolt. The torque specification for the oil drain plug is 33 ft\/lbs.<\/p>\n

Automatic and Manual Transmission Specifications<\/h2>\n

The transmission requirements vary depending on whether your ProMaster 2500 is equipped with an automatic or manual gearbox. Ensure you select the correct fluid to prevent shudder or gear wear.<\/p>\n

Automatic Transmission (62TE)<\/h3>\n
\n\n\n\n\n
Fill Type<\/th>\nCapacity<\/th>\n<\/tr>\n
Initial Fill<\/td>\n5.5 quarts<\/td>\n<\/tr>\n
Total Fill<\/td>\n9 quarts<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Manual Transmission (M40MTA)<\/h3>\n

The AMSOIL lookup notes this manual transmission requires a GL-4 specification with 75W-85 viscosity for all temperatures. The AMSOIL 75W-90 product is also listed.<\/p>\n

\n\n\n\n\n
Component<\/th>\nTorque Spec<\/th>\n<\/tr>\n
Manual Transmission Fill Plug<\/td>\n37 ft\/lbs<\/td>\n<\/tr>\n
Manual Transmission Drain Plug<\/td>\n37 ft\/lbs<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Capacity:<\/strong> The transmission portion requires 6.1 pints.<\/p>\n

Coolant and Brake Fluid Requirements<\/h2>\n

Maintaining the cooling system and braking system is vital for commercial vehicle longevity. Proper coolant prevents corrosion in all cooling system metals, gaskets, and hoses.<\/p>\n

Coolant Specifications<\/h3>\n
\n\n\n\n
Capacity<\/th>\nFormulation Type<\/th>\n<\/tr>\n
12.7 quarts<\/td>\nEthylene glycol 50\/50 pre-mix (for ANTPC1G-EA<\/a>)<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

The AMSOIL lookup lists two options: a pre-mixed OAT formulation and a concentrated propylene glycol version that requires mixing with distilled or high-quality water.<\/p>\n

Brake Fluid<\/h3>\n

The vehicle manufacturer notes to use MOPAR DOT 4 brake fluid. For this application, the AMSOIL lookup lists AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid<\/a> (BFLVCN-EA<\/a>).<\/p>\n

Common diesel oil-related concerns and how AMSOIL products may help<\/h2>\n
\n\n\n\n\n\n
Concern<\/th>\nWhy it matters<\/th>\nAMSOIL product from this lookup<\/th>\nHow it may help<\/th>\nImportant limitation<\/th>\n<\/tr>\n
Diesel Injector Deposits<\/td>\nDirty injectors can reduce fuel efficiency and power.<\/td>\nDiesel Injector Clean<\/a><\/td>\nCleans dirty injectors and lubricates pumps\/injectors.<\/td>\nDiagnosis or repair may be required for mechanical failure.<\/td>\n<\/tr>\n
Low Cetane Levels<\/td>\nAffects combustion quality, idle smoothness, and startability.<\/td>\nDiesel Cetane Boost<\/a><\/td>\nIncreases cetane up to 8 points and improves startability.<\/td>\nDiagnosis or repair may be required for mechanical failure.<\/td>\n<\/tr>\n
Engine Wear<\/td>\nHigh-duty diesel cycles cause significant component wear.<\/td>\n5W-30 Synthetic Diesel Oil<\/a><\/td>\nDelivers up to 6X more wear protection than leading industry standards.<\/td>\nDiagnosis or repair may be required for mechanical failure.<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Diesel maintenance notes for this vehicle<\/h2>\n