{"id":700,"date":"2026-06-30T20:10:32","date_gmt":"2026-07-01T00:10:32","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2008-mercedes-benz-r320-3-0l-6-cyl-diesel-turbo-maintenance-guide\/"},"modified":"2026-06-30T20:10:32","modified_gmt":"2026-07-01T00:10:32","slug":"2008-mercedes-benz-r320-3-0l-6-cyl-diesel-turbo-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2008-mercedes-benz-r320-3-0l-6-cyl-diesel-turbo-maintenance-guide\/","title":{"rendered":"2008 Mercedes Benz R320 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 2008 Mercedes Benz R320 with the 3.0L 6-cylinder Engine Code 642.950 H Diesel Turbo, the engine oil capacity is 9 quarts<\/strong> (including filter replacement). Recommended viscosities include 0W-30 or 0W-40<\/strong> for all temperatures, and 5W-30, 5W-40, or 5W-50<\/strong> for temperatures above -25\u00b0C. AMSOIL recommends AMSOIL 0W-30 MS 100% Synthetic European Motor Oil<\/a> (EOTQT-EA<\/a>) and the MANN-FILTERS HU821X-EA<\/a> oil filter.<\/p>\n

What oil does a 2008 Mercedes Benz R320 take?<\/h2>\n

The 2008 Mercedes Benz R320 with the 642.950 H diesel engine requires specific oil viscosities to ensure proper lubrication of the turbocharger and internal components. The AMSOIL lookup provides several viscosity options depending on your operating environment.<\/p>\n

AMSOIL product recommendations<\/h2>\n

Based on the AMSOIL lookup for your 2008 Mercedes Benz R320, here are the recommended fluids and filters to maintain your diesel engine and drivetrain.<\/p>\n

Engine Oil & Filter<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nCode<\/th>\n<\/tr>\n
AMSOIL 0W-30 MS 100% Synthetic European Motor Oil<\/td>\nEOTQT-EA<\/a><\/td>\n<\/tr>\n
MANN-FILTERS Oil Filter<\/td>\nHU821X-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Coolant & Brake Fluid<\/h3>\n
\n\n\n\n\n\n
Product Name<\/th>\nCode<\/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
AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid<\/td>\nBFLVCN-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Transmission & Transfer Case<\/h3>\n
\n\n\n\n\n
Product Name<\/th>\nCode<\/th>\n<\/tr>\n
AMSOIL Signature Series Fuel-Efficient 100% Synthetic ATF<\/td>\nATLPK-EA<\/a><\/td>\n<\/tr>\n
AMSOIL OE Fuel-Efficient 100% Synthetic ATF<\/td>\nOTLQT-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Engine Oil Viscosity Options<\/h3>\n
\n\n\n\n\n
Condition<\/th>\nViscosity<\/th>\n<\/tr>\n
All Temperatures<\/td>\n0W-30, 0W-40<\/td>\n<\/tr>\n
Above -25\u00b0C<\/td>\n5W-30, 5W-40, 5W-50<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

AMSOIL lookup oil grade:<\/strong> SEO59<\/p>\n

Engine Oil Capacities & Torque<\/h3>\n
\n\n\n\n\n
Specification<\/th>\nValue<\/th>\n<\/tr>\n
Oil Capacity (with filter)<\/td>\n9 quarts<\/td>\n<\/tr>\n
Oil Drain Plug Torque<\/td>\n22 ft\/lbs<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Note: After refilling, always check the oil level.<\/em><\/p>\n

How much fluid does it take for a full service?<\/h2>\n

A complete service for the R320 involves more than just engine oil; you must also consider the coolant and transmission systems to maintain the vehicle’s BlueTEC diesel technology and smooth shifting.<\/p>\n

Coolant Capacity<\/h3>\n
\n\n\n\n
Component<\/th>\nCapacity<\/th>\n<\/tr>\n
Engine Coolant<\/td>\n10 quarts<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

The AMSOIL lookup notes that the Propylene Glycol Antifreeze is concentrated and requires mixing with distilled or high-quality water.<\/p>\n

Automatic Transmission Capacity<\/h3>\n
\n\n\n\n
Transmission Type<\/th>\nTotal Fill (7-speed 722.9)<\/th>\n<\/tr>\n
Standard\/Reduced Friction<\/td>\n9.5 quarts<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Important Note on Transmission Fluid Color:<\/strong>
\n\u2022 Without code A89 (Reduced-Friction) on datacard: Fluid is Red in color.
\n\u2022 With A89 code (Reduced-Friction) on datacard: Fluid is Blue in color.<\/p>\n

Transfer Case Capacity<\/h3>\n
\n\n\n\n\n\n
Component<\/th>\nCapacity<\/th>\n<\/tr>\n
U\/K TRC<\/td>\n1.1 pints<\/td>\n<\/tr>\n
Rear<\/td>\n2.3 pints<\/td>\n<\/tr>\n
Front<\/td>\n2.3 pints<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Transfer Case Drain Plug Torque:<\/strong> 18 ft\/lbs<\/p>\n

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