Best Oil for MerCruiser 4.3 [Oil Type & Capacity]
Oil Type and Capacity for MerCruiser 4.3
The oil in your engine is responsible for transferring heat away from internal engine parts while also lubricating components. When a vehicle engine is running, the oil remains at operational temperature and is then cooled as it transfers away harmful heat. The best oil for Mercury MerCruiser full-synthetic engine oils, 20W-40 is designed to protect engines during this process. It has a capacity of 4.5 liter for 4.5L sterndrive.
Best Oil for MerCruiser 4.3
When a boat owner is looking forward to spending more time on the water, they often overlook one thing that can cause a lot of stress and down-time. That one component is the engine. Engines need regular maintenance to work properly and if neglected, could become damaged beyond repair. One aspect of engine maintenance revolves around the type of oil used in the engine. It’s not enough to just choose any old oil and pour it into your 4 stroke outboard motor – it needs to be chosen carefully based on the engine type. There are a lot of different oils that you could choose and it’s really confusing, so this guide will help make it simpler to understand.
1. Quicksilver 25W-40 Synthetic Marine Engine Oil
This Quicksilver 25W-40 Synthetic Marine Engine Oil protects against corrosion and excessive wear. Designed for use with all 4-stroke marine engines, this marine engine oil offers outstanding strength and viscosity retention. This Quicksilver Synthetic Blend 4-Stroke Marine Engine Oil for MerCruiser 4.3 is ideal for use with all 4-stroke marine engines. Its blend of high-quality synthetic base oils and premium additives offers outstanding strength and viscosity retention, as well as improved thermal stability – perfect for any boater.
It is very high quality and the blend helps prevent salt water corrosion, protects against excessive wear and reduces the formation of rust, extending engine life. This oil contains specialized additives that cling to engine surfaces protecting critical components.It also repels water and it is designed to work in extreme high and low temperatures.
2. Quicksilver 25W-40 Marine Engine Oil for MerCruiser 4.3
Whether you’re powering your boat up the river, across the bay or around the harbor, Quicksilver premium marine oils have you and your engine covered. This Quicksilver marine engine oil is fortified with additives to protect against corrosion and excessive wear. It is formulated specifically for use with all 4-stroke marine engines. This marine engine oil offers outstanding strength and viscosity retention, even in severe operating conditions. It comes in a 1-gallon bottle.
Using the wrong oil can damage your engine and void your warranty, so verify your engine manufacturer’s recommendations to ensure it will, Infused with additives to help protect against corrosion and wear that can be caused by ethanol fuel blends. Protect your marine engine from corrosion, lubrication breakdown and excessive wear. Quicksilver 25W-40 Marine Engine Oil provides the ultimate protection for your engine in harsh conditions. It’s formulated with premium additives that provide rust and corrosion protection while repelling moisture. Whether you’re running offshore in big water or cruising around a quiet lake, it’s crucial to keep your engine protected.
3. OEM Mercury 4-Stroke FC-W SAE 25W-40 Synthetic Blend Engine Oil
From the ManufacturerFor Mercury Synthetic Blend 4-stroke oils, less is more. A little bit of this oil goes a long way to protecting your engine: environmentally, too. By combining Carrier Base Stocks (75%) with Synthetic Base Stocks and patented anti-wear inhibitors (25%) it can be blended with fewer harmful ingredients while still providing all the added benefits of a fully synthetic oil, making it more environmentally friendly than many other conventional oils. The formula delivers consistent fluidity over a wide range of temperatures to help reduce cold flow startup wear, protects against rust and corrosion, offers exceptional protection against viscosity and thermal breakdown and contains special conditions to reduce friction and protect critical engine surfaces for longer life.
It is recommended to use when all other options are unavailable. Protect your boat against rust and corrosion with top-quality engine oil specially formulated for marine applications. Mercury 4-Stroke Premium Synthetic Blend (25W-40) Oil performs four times better than automotive motor oil in corrosion tests. The advanced formulation also provides outstanding protection against wear and harmful deposits to help maintain performance, prolong engine life and conserve fuel.
Factor to Consider Before Buying Oil for MerCriuser 4.3
When you are shopping for the best oil for a Mercruiser 4.3, then you have to ensure that the kind of oil you buy is suitable for your boat engine. If you do not get the right kind of oil, then it will lead to severe damage to your boat engine. It is essential that you avoid this from happening by getting the best oil for your engine.
To help you choose the best oil for your Mercruiser 4.3, I have listed a few factors that you need to consider before making a purchase.
Your Engine
This is one of the most crucial factors when buying oil for any machine. You need to check what type of engine you have if it’s V6 or V8 because different engines require different types of oils.
The Quality or Grade
When looking at the quality or grade, there are two main grades that you can choose from; synthetic, or conventional which are referred to as mineral oils. The difference between these two is that synthetic oils are made artificially in a lab while conventional oils are natural mineral oils taken out from crude oil deposits found underground.
How to do an Oil Change in MerCruiser 4.3?
Frequently Asked Questions
What oil does a MerCruiser take?
The correct oil for your MerCruiser sterndrive is defined by the model and year of manufacture. If you don’t know your sterndrive’s model or year, check the number stamped on the engine block; this will give you the serial number. You can then look up the year of manufacture of your engine on the Mercury Marine website.
If your MerCruiser sterndrive was manufactured after 1972 with a 2-, 3-, 4- or 5-letter alpha code in its model name, you should use 25W-40 synthetic blend marine oil. If it was manufactured before 1972, you should use SAE 30 non-synthetic blend. The most significantly used is 20W-40 synthetic blend marine oil.