{"id":951,"date":"2026-07-12T21:59:28","date_gmt":"2026-07-13T01:59:28","guid":{"rendered":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2008-mercedes-benz-gl320-3-0l-6-cyl-diesel-turbo-maintenance-guide\/"},"modified":"2026-07-12T21:59:28","modified_gmt":"2026-07-13T01:59:28","slug":"2008-mercedes-benz-gl320-3-0l-6-cyl-diesel-turbo-maintenance-guide","status":"publish","type":"post","link":"https:\/\/www.worldsbestdieseloil.com\/oil-guide\/2008-mercedes-benz-gl320-3-0l-6-cyl-diesel-turbo-maintenance-guide\/","title":{"rendered":"2008 Mercedes Benz GL320 3.0L Diesel Maintenance Guide: Oil & Fluid Specs"},"content":{"rendered":"
\n
\n
\"AMSOIL
AMSOIL diesel oil guide for trucks, vans, SUVs and diesel engines<\/figcaption><\/figure>\n

For the 2008 Mercedes Benz GL320 with the 3.0L 6-cylinder engine (Code 642.940 F Diesel Turbo), the oil capacity is 9 quarts<\/strong> with a filter change. Recommended viscosities include 0W-30 or 0W-40<\/strong> for all temperatures, and 5W-30, 5W-40, or 5W-50 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 GL320 take?<\/h2>\n

The 2008 Mercedes Benz GL320 with the 642.940 F diesel engine requires specific viscosities to ensure proper lubrication across varying temperature ranges. The AMSOIL lookup provides several options depending on your local climate and operating conditions.<\/p>\n

AMSOIL product recommendations<\/h2>\n

Based on the vehicle lookup for the 2008 Mercedes Benz GL320, the following AMSOIL products are recommended to maintain engine and component health.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
Component<\/th>\nProduct Name<\/th>\nPart Code<\/th>\n<\/tr>\n
Engine Oil<\/td>\nAMSOIL 0W-30 MS 100% Synthetic European Motor Oil<\/a><\/td>\nEOTQT-EA<\/a><\/td>\n<\/tr>\n
Oil Filter<\/td>\nMANN-FILTERS Oil Filter<\/td>\nHU821X-EA<\/a><\/td>\n<\/tr>\n
Antifreeze\/Coolant<\/td>\nAMSOIL Passenger Car & Light Truck Antifreeze & Coolant<\/td>\nANTPC1G-EA<\/a><\/td>\n<\/tr>\n
Antifreeze\/Coolant<\/td>\nAMSOIL Propylene Glycol Antifreeze and Engine Coolant<\/td>\nANT1G-EA<\/a><\/td>\n<\/tr>\n
Automatic Transmission<\/td>\nAMSOIL Signature Series Fuel-Efficient 100% Synthetic ATF<\/td>\nATLPK-EA<\/a><\/td>\n<\/tr>\n
Automatic Transmission<\/td>\nAMSOIL OE Fuel-Efficient 100% Synthetic ATF<\/td>\nOTLQT-EA<\/a><\/td>\n<\/tr>\n
Transfer Case<\/td>\nAMSOIL Signature Series Fuel-Efficient 100% Synthetic ATF<\/td>\nATLPK-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

Engine Oil Details<\/h3>\n
\n\n\n\n\n\n
Feature<\/th>\nSpecification\/Detail<\/th>\n<\/tr>\n
AMSOIL Lookup Oil Grade<\/td>\nSEO59<\/td>\n<\/tr>\n
Oil Capacity<\/td>\n9 quarts (with filter)<\/td>\n<\/tr>\n
Drain Plug Torque<\/td>\n22 ft\/lbs<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Note:<\/strong> On models equipped with an oil cooler, additional oil may be required when the cooler is drained. Always allow 5 minutes after refilling or turning the engine off before checking the oil level.<\/p>\n

Oil Filter Information<\/h3>\n
\n\n\n\n
Product<\/th>\nPart Number<\/th>\n<\/tr>\n
MANN-FILTERS Oil Filter<\/td>\nHU821X-EA<\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n

The premium media in this filter offers improvements over OEM-branded filters and helps reduce engine wear while offering OEM drain intervals.<\/p>\n

How much coolant and transmission fluid is needed?<\/h2>\n

Proper fluid levels are critical for the thermal management and shifting performance of your Mercedes BlueTEC diesel. Ensure you use the correct capacity for your specific transmission type (722.9) and transfer case configuration.<\/p>\n

Coolant Specifications<\/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

AMSOIL offers two options: a 50\/50 pre-mix (ANTPC1G-EA<\/a>) and a concentrated version (ANT1G-EA<\/a>) that requires mixing with distilled or high-quality water.<\/p>\n

Transmission & Transfer Case Capacities<\/h3>\n
\n\n\n\n\n\n
Application<\/th>\nCapacity<\/th>\n<\/tr>\n
7-speed 722.9 (Total Fill)<\/td>\n9.5 quarts<\/td>\n<\/tr>\n
Double Speed Transfer Case<\/td>\n3.2 pints<\/td>\n<\/tr>\n
Single Speed Transfer Case<\/td>\n1.1 pints<\/td>\n<\/tr>\n<\/table>\n<\/div>\n

Transmission Notes:<\/strong>
\n\u2022 For models with A89 code (Reduced-Friction) on datacard: Fluid is Blue in color.
\n\u2022 For models without A89 code on datacard: Fluid is Red in color.<\/p>\n

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