So, it’s that time of the year again when you need to replace the engine oil of your BMW 328i.
Now, you might want to switch to a different oil because you had to go through a degraded driving experience, and it even damaged the engine. When I bought my first engine oil for my new BMW 328i, I didn’t have any idea about what and what not to consider. I just selected a random engine oil, and let me tell you, the experience was not good at all.
It’s therefore essential to consider the right set of factors before buying engine oil. Consequently, I took it upon myself to search for and compile a list of the best oil for BMW 328i and I was pretty complacent with the results.
So, here I am, Stacy Smith, bringing the reviews of the best oil for BMW 328i so that you can make an informed decision and avoid damaging your expensive engine.
Without further ado, dig in!
Top 5 Oils For BMW 328i
1. Castrol EDGE 0W-40 A3/B4
One of the top products on my list is Castrol's premium and high-performance engine oil. Castrol engine oil is a trusted product that protects and enhances the performance of the most critical components of your vehicle.
Product Highlights
Castrol’s 0W-40 engine oil is liquid engineered to provide greater protection to your engine from the moment you turn on the ignition. Apart from protecting the engine, the oil makes sure that the engine constantly responds to the ever-changing conditions.
Whenever I’m driving my car, my engine oil must react well to the needs of different metal-to-metal contact points in the engine at varying pressure, temperature, and demands. And this oil by Castrol excels in this respect and makes sure the critical parts of your engine remain protected.
Besides, its proprietary formula minimizes volatility and allows the engine to perform at the same rate for longer. In simple words, lesser volatility of an oil means less oil evaporates during operation. And higher volatility leads oils to faster evaporation, thereby increasing friction between parts and leading to potential wear and tear. So, in short, you have an oil that takes care of the health of the engine.
What's There To Like About It?
Castrol is a larger-known name in the oil industry, and after hearing positive feedback from several vehicle experts, I decided to give it a shot. And I absolutely loved the product. Not only did it boost the performance of my BMW 328i engine by tiers, but it also minimized the friction between the critical parts.
And due to less volatility, it stays attached to the parts for longer, reducing oxidation problems and preventing rust formation, thereby extending the lifetime of the engine.
What's There Not To Like About It?
The only thing that bothered me about using this oil is that it doesn’t guarantee preventing engine leaks. It’s therefore important to take your car for regular repairs. If oil is lost due to leaks, it causes serious damage to your engine and necessitates costly repairs.
Pros and Cons of Castrol EDGE 0W-40 A3/B4
Pros
Cons
- 1.5X Better viscosity control to help engines run better for longer*
- 1.5X Better piston cleanliness to help maximize engine performance**
- As measured in DV6 test vs. test limits
2. Liqui Moly 2332 Leichtlauf High Tech 5W-40 Engine Oil
I was looking for a quality engine oil for my BMW 328i that protects my engine from wear and increases its performance. And it’s safe to say that the Liqui Moly 5W-40 engine oil excelled in both areas. So let me share my thoughts on it.
Product Highlights
This 5W-40 engine oil from Liqui Moli has some great features that will significantly improve the performance of your BMW 328i. For one, it has a lesser flow density, which means it easily flows down and has high lubrication properties. In simple words, the greater the lubrication, the lesser the chances of wear and tear, which prolongs the lifespan of the engine.
Furthermore, you can mix this engine oil with other kinds of oils. Although I won’t recommend it for primary use, it is good to have this option.
Apart from that, it works well with catalytic turbochargers and converters and keeps your engine clean. So, the engine oil, in addition to being versatile, does not sacrifice performance or durability. Plus, it gives better fuel consumption and reduces emissions.
What's There To Like About It?
The features it presents make it a suitable choice for your BMW 328i, but its volatility levels are much higher than Castrol EDGE 0W-40 A3/B4, which means the oil evaporates faster. Nevertheless, its high lubrication makes sure it lasts long and prevents your car engine from wearing down. You can also expect this product to be versatile because it works well with any engine.
Besides lasting long, it is an environmentally-friendly product that doesn’t generate any harmful pollutants when the engine is operating.
What's There Not To Like About It?
Apart from being highly volatile, the product is highly expensive. If a premium car needs to go through costly maintenance and repairs, then why would you need a premium product when you can get a superior one for a much lower price?
Pros and Cons of Liqui Moly 2332 Leichtlauf High Tech 5W-40 Engine Oil
Pros
Cons
- Rapid oil delivery at low temperatures, high lubrication reliability at high and low temperatures
- Long engine service life due to high level of protection against wear, mixable and compatible with commercially-available engine oils
- Outstanding engine cleanliness, tested with catalytic converters and performance proved with turbochargers
3. Royal Purple Synthetic Oil
Bringing to you another superior engine oil by Royal Purple, which has developed many high-performance lubricants over the last two centuries. With their constant focus on innovation, they bring you synthetic oil that supersedes other similar products on the market in terms of safety, efficiency, and reduced emissions.
Product Highlights
If a brand name includes the word "Royal," they know what they're doing and are doing it correctly. In terms of safety and performance, this synthetic oil by Royal Purple delivers excellent results. In fact, it exceeds the ILSAC GF-6 and GM dexos1 requirements for preventing engine wear and tear.
It has some additives to prevent metal-to-metal contact and rust, which reduce friction for optimum fuel efficiency. Hence, you will save a lot of fuel and reduce emission, thanks to its anti-wear patented technology.
The same technology also minimizes the formation of white sludge, which is quite common in gasoline-ethanol brands, and further boosts engine performance. However, its limited usability and versatility have pushed it lower on the list as compared to the Liqui moly 2332 leichtlauf high tech 5W-40 engine oil. The latter is suitable for any turbochargers and superchargers.
What's There To Like About It?
If you're driving a BMW 328i and the engine oil isn't acting as a coolant, you've probably gone for the wrong option. Excessive heating is one of the primary issues of this BMW model, and I needed my engine oil to deal with that.
Thankfully, this engine oil by Royal Purple ensures that the engine doesn’t heat up and prevents friction between metals, which ensures greater engine longevity and lesser emissions. Plus, it enhances the overall efficiency of the engine.
What's There Not To Like About It?
I’ve heard many complaints regarding poor fuel economy from regular users, which is not expected from such a highly rated brand. In simple words, using this oil will cause your car to use more gas..
Pros and Cons of Royal Purple Synthetic Oil
Pros
Cons
- Specifically Designed To Minimize Wear And Restore Lost Performance In Engines With More Than 75,000 Miles
- Formulated With Robust Zinc/Phosphorus Anti-Wear Compounds Combined With Royal Purple'S Proprietary Additive Technology
- Hmx Is Chemically Enhanced To Revitalize Hardened Seals, Reducing Oil Consumption Common In High-Mileage Engines
4. Mobil 1 5W-30 Extended Performance High Mileage Formula Motor Oil
If you’re looking for an engine oil that boosts the performance of your car and ensures low friction and viscosity, the Mobil 1 motor oil is one of the best choices. Apart from that, it keeps your engine in pristine condition even at extremely low temperatures.
Product Highlights
With great online ratings on e-commerce websites, this engine oil by Mobil 1 is a decent choice if you're looking for an affordable yet quality product. It’s basically available in two options, viz, high mileage+extended performance and extended performance, with the former being slightly more expensive.
This engine oil effectively inhibits the oxidation process and prevents oil breakdown by fully lubricating the pipeline. And its consistent viscosity ensures a bottle of oil lasts up to 20,000 miles.
Furthermore, it protects the engine from wear and tear by reducing the friction between metal parts. This is mainly because of the uniform size of oil molecules. I was torn between Royal Purple Synthetic Oil and this, but I went with the former because it includes additive technology to reduce emissions and prevent the formation of rust and white sludge.
What's There To Like About It?
From what my husband told me, I can assure you that it’s one of the better options for your 328i. It lubricates the pipeline and engine parts to reduce friction, and make the engine less prone to wear and tear. The viscosity of the oil is decent enough to last long.
Moreover, being a 5W-30 grade oil, it can withstand extreme temperatures and keep your car engine in good condition. Lastly, it also prevents deposits in the pipeline, which would’ve prevented the engine from utilizing its full power.
What's There Not To Like About It?
The major complaint that customers had with this engine oil is increased burning. One of them stated that the oil didn’t even last 1000 miles due to excessive burning, and he had to change it midway.
Pros and Cons of Mobil 1 5W-30 Extended Performance High Mileage Formula Motor Oil
Pros
Cons
- Mobil 1 Extended Performance High Mileage full-synthetic motor oil 5W-30 is designed for engines with over 75,000 miles to go up to 20,000 miles between oil changes.*
- Utilizes Mobil 1’s Triple Action+ Formula to combine outstanding engine performance, protection, and cleanliness with the added benefit of power
- Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
5. Pennzoil Platinum Full Synthetic 5W-30 Motor Oil
Up next on my list is a motor oil that is made from natural gas and guarantees to boost the engine performance. The Pennzoil Motor oil protects your engine from loss of power and wear and maintains its performance even at extreme temperatures.
Product Highlights
The Pennzoil full synthetic oil is designed to deliver its highest performance even at extreme temperatures. Its low-temperature helps it flow to the most affected areas to cool them and keep them protected. Additionally, it keeps the engine parts lubricated, which minimizes the friction between them and protects them from any wear. In this way, your BMW 328i engine stays in top-notch condition for years.
One of the best things about this oil is that it’s made of natural oil and not crude, through GTL technology, and probably the first of its kind.
In hindsight, it’s free from any contaminants that find their way into conventional oils. Hence, it can deliver better fuel economy and doesn’t allow deposits to form, further enhancing the engine performance. However, this product isn’t ranked higher than the Mobil 1 motor oil because it doesn’t inhibit the oxidation process. As a result, rust may form on the engine parts, causing them to fail.
What's There To Like About It?
The first thing that impressed me about this oil is that it’s made from natural gas, which eliminates several problems that I have faced while using conventional oils. For one, you have cleaner pistons, which is important to ensure that the engine performs optimally. Pennzoil works by the industry-standard ILSAC GF-6 to keep your pistons cleaner.
Aside from that, it ensures better fuel economy by increasing the mileage of your car and prevents the occurrence of deposits, which adds to the engine performance. And with its lower viscosity, it performed well even at extreme temperatures.
What's There Not To Like About It?
The one thing that disappointed me is that it doesn’t inhibit the oxidation process, which leads to the formation of rust and damages the engine. Apart from that, it’s not versatile enough to suit several car engines, so check its specifications beforehand.
Pros and Cons of Pennzoil Platinum Full Synthetic 5W-30 Motor Oil
Pros
Cons
- Full synthetic 5W-30 motor oil that is made with natural gas and designed to maximize engine protection
- Backed by a 15,000-mile protection guarantee* to protect your pursuit of every mile
- Provides better fuel economy (based on the latest industry standards)
Buyers Guide
After going through the reviews, I hope you have understood which kind of oil will suit your BMW 328i.
But before buying one, it’s important to know the features to look for, which will best suit your car and the conditions you plan to drive it in. And for that, you must be familiar with some important aspects of these engine oils.
Hence, I have curated this extensive buyer’s guide to help you make the right purchase decision. Read on!
1. Viscosity Of The Oil
Before I tell you about the optimum viscosity value for a BMW 328i engine oil, you need to know what viscosity is. Engine oil viscosity is defined as how easily oil pours at a particular temperature. The thickness of oil determines how well it performs at higher or lower temperatures.
So, higher the viscosity, thicker the oil will be. And the ones with lower viscosity are thinner and pour easily at low temperatures. Thin oils minimize the friction between metal parts of the engine and help them to start quickly in cold weather.
Generally, the BMW 328i engines perform well with any 5W-30 oil but the ones with 5W-40 viscosity keep your engine healthy. On the other hand, the 0W-40 and 0W-30 oils are suitable for lower temperatures but deliver thinner lubrication to the engine parts.
2. Oil Type
You will usually come across three types of oils on the market, which include synthetic blend oil, conventional oil, and full synthetic oil. Since the BMW 328i has a premium quality engine, it works well with a full synthetic, synthetically blended, or traditional oil.
I'd recommend using a full synthetic oil because it's designed to keep the engine running for longer periods of time and eliminates the need to change your engine oil on a regular basis. It will also help the engine perform optimally for longer periods, thereby cutting down on your maintenance efforts. However, these oils may cost more than the other two options.
3. Engine Performance
Performance is the most important factor to consider in a vehicle, and therefore, you must select an engine oil that helps the engine perform well in all conditions. However, the performance of an engine depends majorly on usage and how much pressure is being put on it.
If you’re someone who goes on long drives on bad roads regularly, it’s important you select a heavy lubricating thick engine oil. These oils are particularly important if you live in warm regions, as they keep the engine cool. On the other hand, a thinner oil is important if you live in a colder region.
Therefore, it’s important to understand the specific needs of your vehicle and the area you’re living in to make an informed decision.
4. Additional Features
Apart from these, many oils have additional features to consider if you’re confused between certain products. For example, the Liqui moly 2332 leichtlauf high tech 5w-40 engine oil can be mixed with other oils. Although it's not an important feature, you might need it sometimes when you might run out of engine oil.
It’s also important to check if your engine oil protects the engine at extreme temperatures. Some oils might handle only hot or cold temperatures well, while others can handle both. So, it’s important you consider the area you’re living in, the average temperature, and the roads where it will be driven. But since the BMW 328i model tends to overheat, I’d suggest choosing an engine oil that doubles as a coolant.
Long story short, these features help you understand your engine oil expectations and make it easier to identify specific issues that need to be addressed in the engine. If you ask me, I’m always looking for engine oil that is versatile in nature, works in any condition, and also keeps the engine healthier.
Frequently Asked Questions
Synthetic motor oil is primarily suitable for BMW 328i. Although 5W-30 oils are generally suitable for the engine, you should make sure they do not degrade its overall performance. However, other oil types like 5W-40 and 0W-40 can also be ideal for your car engine.
BMW recommends changing the oil every 7,500-10,000 miles while using any synthetic oil.
You can only mix two types of oils at a time, provided you’re running low on volume. However, the performance of the car engine usually degrades when using mixed oils as compared to using one oil. So, I won’t recommend mixing oils unless you’re in a dire situation.
My Final Recommendation
Let me be honest- finding the best oil for BMW 328i was not an easy task. I had to go through numerous articles and the manufacturer’s website to make sure it suits well and works well with the vehicle. And I have even used some of them in my car personally. So, I’ll wrap up the guide with a few products that piqued my interest.Â
First one would be the Castrol Edge engine oil, which has been one of the top products on my list. It’s designed to deliver spectacular performance and it ensures your engine stays as good as new for a long time.Â
Next, I would like to mention the Liquid Moly engine oil, a versatile product that works well with any type of car, including superchargers and hyperchargers. Also, it doesn’t compromise the performance and is made in Germany. It’s a huge advantage as the company knows these BMW cars from the inside out and helps the engine deliver a better and more stable driving experience.Â
On that note, it’s time for me to say goodbye. Take care and goodbye!Â