Mercury Mariner Oil Type & Capacity
GarageDex's oil-spec data shows the Mercury Mariner takes 5W-20 engine oil, about 5.3-6 qt with a filter change, on 2011 models. Older ones use the same grade but hold a different amount - 2010 models take 5-6 qt - so check your year in the table below.
Oil by model year
| Model years | Oil type | Capacity | Buy |
|---|---|---|---|
| 2011 | 5W-20 | 5.3-6 qt | Shop 5W-20 |
| 2010 | 5W-20 | 5-6 qt | Shop 5W-20 |
| 2009 | 5W-20 | 4.5-6 qt | Shop 5W-20 |
| 2007-2008 | 5W-20 | 4.5-6 qt | Shop 5W-20 |
| 2006 | 5W-20 | 4.8-6 qt | Shop 5W-20 |
| 2005 | 5W-20 | 4.5-6 qt | Shop 5W-20 |
Capacity is with a filter change and can vary by engine - open your exact year below for the per-engine figures and our sources. Shop links go to Amazon, and we may earn a commission at no extra cost to you.
Every Mariner year
Frequently asked
What kind of oil does a Mercury Mariner take?
GarageDex's oil-spec data shows the Mercury Mariner takes 5W-20 engine oil, about 5.3-6 qt with a filter change, on 2011 models. Older ones use the same grade but hold a different amount - 2010 models take 5-6 qt - so check your year in the table below.
How many quarts of oil does a Mercury Mariner take?
About 5.3-6 qt with a filter change on 2011 models, and 5-6 qt on 2010 models. Capacity varies by engine, so check your exact year for the per-engine figure - and finish on the dipstick rather than pouring in the full amount.
Does the oil type change by year on the Mercury Mariner?
Yes. We record 6 different factory specs across the years we cover - 2011: 5W-20; 2010: 5W-20; 2009: 5W-20. Use the table above and confirm against your owner's manual.
Sources. The oil grade and capacity for 7 of 7 model years is checked against a cited source, most often AMSOIL lookup guide - 2011 Mercury Mariner, 2.5L 4-cyl hybrid, AMSOIL lookup guide - 2011 Mercury Mariner, 2.5L 4-cyl and AMSOIL lookup guide - 2011 Mercury Mariner, 3.0L 6-cyl (99G). Each year page lists its own sources.
Last verified 2026-06-21. Maintained by Matan B., who runs GarageDex. How we verify.