Mercruiser 5.7 Oil Type, Capacity, Filter & Change Cost


Mercruiser 5.7 Oil Type: Inspecting and maintaining the condition of your Mercruiser 5.7 engine essential to ensure optimal performance and long-lasting use. 

The most crucial aspect of maintenance is regular oil changes. This guide will provide important particulars about Mercruiser 5.7 oil modifications, which include the Recommended type of oil capacity, filter, And the average cost.


The type: Mercruiser 5.7 engines require high-quality synthetic oils that is certified by the standards of the NMMA Premier Marine Oil Certification. This will ensure that your engine gets the protection it needs from wear and tear, particularly in harsh marine environments.

Capacity: the capacity for oil in a Mercruiser 5.7 engine is seven quarts (6.6 Liters). It is essential to make sure you use the right amount of oil in order to avoid overfilling or a lack of fill, which could result in damage to the engine.


Filter: A recommended filter to use that is recommended for the Mercruiser 5.7 engine is one of the MerCruiser 88998T oil filters. It is made to remove contaminants and debris to ensure clean oil circulation throughout the engine.

Price: The average cost of a Mercruiser 5.7 oil replacement is anywhere between $150 and $250. This includes oil and filter as well as labor. The exact price may differ depending on the Location you live in And the rates of your mechanic.

Pro Tips: For optimal engine performance, it is recommended to make oil changes every 100 hours or every year or annually, whichever is first.

Mercruiser 5.7 Oil Capacity

Best Oil For Mercruiser 5.7

There are a variety of options to choose the most suitable oil for the Mercruiser 5.7 engine and the selection will be based on the particular needs that your motor has. Here are a few that are the top results from a search:

  1. The T6 Rotella 15w-40 is an extremely popular option in Mercruiser 5.7 engines since it is the exact viscosity as recommended by Mercruiser.
  2. The SAE 20W-40 full-synthetic MerCruiser engine oil is recommended for all Mercruisers from the 3-liter model to the 8.2-liter high-power models.
  3. Pennzoil Ultra Premium Motor Oil 5W-20 has been a highly rated choice for the most effective oil for a Mercruiser 5.7 engine.
  4. The Mercury/Quicksilver Synthetic Blend 25W-40 as well as Mercury/Quicksilver are two FC-W-rated NMMA 4-cycle Mercruiser oils that are suggested to be used in Mercruiser engines.
  5. AMSOIL Z-ROD 10W-30 Synthetic Engine Oil is suggested in Mercruiser 5.7 engines that have flat tappet cams since it has high levels of ZDDP that are vital to these types of engines.

It is vital to know that the right engine oil to use for the Mercruiser 5.7 engine will depend on the particular type and model of the boat and also on the specific needs of the engine. 

It is suggested to check your owner’s manual, or an authorized dealer for Mercruiser to ensure that you’re using the correct fuel for your vehicle. Also, the majority of engines must be changed every 100 hours, or annually.

 Mercruiser 5.7 Engine Oil Type

The recommended types of oil for the Mercruiser 5.7 engine are 5W-30 and 0W-30 – synthetic oil. Synthetic oil can be more expensive than conventional oil. However, it offers better protection against wear and tear and can last longer between oil changes.

If you reside in a cold climate you can make use of a 0.W-30 oil. This oil will be a little thinner and flow more smoothly at lower temperatures, which could help prevent the engine from running rough.

If you reside in a hot climate you can apply an oil 5W-30. The oil will be more dense and offer better protection in high temperatures.

It is essential to read the owner’s manual to determine the particular oil type and viscosity recommended by the Mercruiser 5.7 engine.

Mercruiser 5.7 Oil Type

Mercruiser 5.7 Oil Capacity

The capacity of oil in the Mercruiser 5.7 engine is contingent on the particular model and the year. Here are the most common capacities of oil used by Mercruiser 5.7 engines.

  • MIE 5.7L/ 350 Mag MPI: 5-1/2 US qt (5.2 L)
  • MIE 5.7L/ 350 Mag MPI: 4-1/2 US qt (4.25 L)
  • Ski 5.7L: 4 US qt (3.8 L)
  • Ski 5.7L/ 350 Mag & MPI: 5 US qt (4.7 L)

It is essential to verify the owner’s manual to determine the specific capacity of the oil in the Mercruiser 5.7 engine. You can find these details on the Mercruiser website.

When you change the oil inside the Mercruiser 5.7 engine It is crucial to use the right volume of oil. Insufficiently filling the engine could result in leaks and other issues.


Mercruiser 5.7 Oil Filter

The most recommended oil filter for a Mercruiser 5.7 engine is a Quicksilver 35-866340Q03. The filter is available at most marine dealers and on the internet at retailers.

When you are changing the oil filter of the Mercruiser 5.7 engine it is essential to select the right filter. If you use the wrong filter, it could cause damage to the engine.

Mercruiser 5.7 Oil Filter

Mercruiser 5.7 Oil Change

Changing the oil in the Mercruiser 5.7 can be a straightforward procedure that is done at home, using only a few tools. These are the steps to alter the oil of the Mercruiser 5.7:

  1. Get the engine warmed up by running for a few minutes.
  2. Shut off the engine, and find the drain plug for oil at the bottom of the engine.
  3. Place an oil pan underneath the drain plug. Remove the plug to drain the oil.
  4. Once the oil has gone down and the drain plug is replaced, you can replace it and tighten it tightly.
  5. Find the oil filter on the right side of the engine, and then remove it.
  6. Install a brand-new oil filter and secure it.
  7. The required amount of engine oil via the hole for filling with oil.
  8. Make sure the oil level is correct using the dipstick, and add oil if needed.
  9. Start the engine, and let it run for a couple of minutes to let the oil circulate.
  10. Shut off the engine and then check the level of oil. If needed, add more oil.

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It is important to note that the Mercruiser 5.7 requires a marine engine of 25W-40 oil. It is essential to use premium oil that meets the specifications of the manufacturer to ensure optimal performance and long-term durability that the engine will last. 

Making sure you use the correct oil is vital to the Mercruiser 5.7‘s durability and performance. The engine is built to work with particular oils and additives that ensure proper cooling and lubrication. 

Changing the oil in the Mercruiser 5.7 can be a straightforward procedure that is done at home, using only a few tools. 

It is essential to adhere to the guidelines of the manufacturer regarding oil viscosity and type for optimal performance and long-term durability for the Mercruiser 5.7.

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FAQs – Mercruiser 5.7 Oil Type

Do you need a quick reference for your MerCruiser oil capacity?

Need a quick reference for your Mercruiser oil capacity? PartsVu’s Mercury Mercruiser Engine Oil Capacity Chart specifies the oil capacity for your specific engine and serial number range. Simply select your engine family, then make sure you are reviewing the correct serial number range for the engine you own.

How much horsepower does a Mercruiser have?

MerCruiser 3.0 L – 181 cid 2 x 135 hp 21.0 GPH (79.0 lph) MerCruiser 4.3 L – 262 cid 2 x 190 hp 32.0 GPH (121 lph) MerCruiser 4.3 L – 262 cid 2 x 220 hp 36.0 GPH (136 lph) MerCruiser 5.0 L – 305 cid 2 x 220 hp 36.4 GPH (137 lph) MerCruiser 5.0 L – 305 cid 2 x 260 hp 37.0 GPH (140 lph) 8 more rows …

What kind of oil do you put in a Chevy 53?

There are just two types of engine oils recommended for vehicles with Chevy 5.3 engines. The oils are 5w30 and 0w20. GM Dexos-approved 5w30 oils are the best for your 1999 – 2013 Chevy 5.3 vehicles. However, the 2014 Chevy Suburban 5.3 and Tahoe 5.3 can use 5w30 oils, too.

What is the best oil for a 5 7 Hemi?

The top-rated choice for the best 5.7 Hemi oil is 5W-20 Pennzoil Ultra Platinum Motor Oil. Its compatibility with high-ethanol gasoline sets it apart.

What kind of oil will a Mercruiser 5.7 use?

The SAE 20W-40 full synthetic MerCruiser engine oil is recommended for all Mercruisers, ranging from the 3-liter model to the 8.2-liter models with high-powered power.