Motor oils help in prolonging the life of your vehicle engine. However, not every oil in the market is good for your BMW 325i. BMW has its own specifications for suitable oil types for their vehicles. So, if you want the best for your car, you should consider BMW’s list of very specific oil types produced by different manufacturers.
Using the right oil is very important. There are a number of things to consider when getting oil for your BMW 325i, including whether the oil is LL (Long life) approved, type, viscosity, etc. to ensure that you don’t go through much trouble finding the right type, we have reviewed the top 5, and expert-recommended oil types for your BMW 325i.
BMW 325i oil filter Size And Capacity
The oil capacity for a BMW 325i is 6.5 liters. There is need to keep the oil levels in check to avoid problems that would otherwise occur as a result of excess or very low levels of oil in your engine.
Comparison Table
The table below compares the viscosity of the top 5 recommended oil types for BMW 325i.
| No. | Product | Viscosity | Price |
| 1 | Mobil 1 synthetic motor oil | 5W-30 | Check Price |
| 2 | Valvoline Advanced Full Synthetic SAE | 5W-30 | Check Price |
| 3 | Castrol 03084C Edge Motor Oil | 5W-30 / 5W-40 | Check Price |
| 4 | Castrol 01307 GTX Motor Oil | 5W-20 | Check Price |
| 5 | Amazon Basics Motor Oil | 5W-30 / 5W-40 | Check Price |
Recommended oil types or viscosity for BMW 325i
BMW 325i comes in both diesel and petrol versions. It is recommended to use synthetic oil types with 5W-30 and 5W-40 viscosity for petrol and diesel engines respectively. However, most oil types work in both engine versions.
5 Best Oil For BMW 325i
Below is the list of 5 best oil types you can use for your BMW 325i. Go through the details to choose one that will work well for you.
1 – Mobil 1 synthetic motor oil
Mobil 1 synthetic motor oil with 0W-20 viscosity is engineered to help prolong the engine life of your vehicle. It is made up of uniform synthetic oil molecules that reduce friction, help to prevent deposits and sludge build-up. Its formulation also provides excellent internal low-temperature protection and heat protection.
In addition, Mobil 1 synthetic motor oil helps in preventing oxidation, thereby helping to address the issues of oil breakdown. It is recommended for all modern types of vehicles, including turbo-charged ones. It is, therefore, a perfect match for BMW 325i.
Specifications
| Brand | Mobil |
| Material | Full synthetic |
| Weather condition | Hot and cold weather |
| Weight | 9.1 pounds |
| Package dimensions | 4.4 x 8.1 x 12.66 inches |
| Viscosity | 0W-20 |
Pros
- Increases fuel economy
- Has engine cleaning power
- Withstands hot and cold weather
- Prevents sludge formation, thus keeping the engine clean
Cons
- Many customers have complained of faulty containers with damaged caps
2 – Valvoline Full Synthetic SAE Motor Oil
Valvoline Full Synthetic motor oil prevents your engine from breaking down as a result of friction, wear, deposits and heat. This ensures that your engine performance is optimized and your engine life extended. Although aging oil can break down in modern engines and leave a gap in protection, Valvoline Full Synthetic motor oil has anti-wear additives, giving 40% extra protection than industry standards. Its formulation has antioxidants that effectively prevent oil breakdown.
Hot and cold conditions affect the effectiveness of motor oils. But, with Valvoline Advanced Full Synthetic oil still flows easily in cold conditions and effectively coats critical engine parts in the heat, giving your engine maximum protection.
Specifications
| Brand | Valvoline |
| Material | Full synthetic |
| Weather condition | Hot and cold weather |
| Weight | 9.46 pounds |
| Package dimensions | 8.22 x 4.6 x 12.66 inches |
| Viscosity | 5W-30 |
Pros
- Recyclable
- Prevents corrosion and friction
- Withstands hot and cold weather
- Exclusively designed for BMW engines
Cons
- Possible increased consumption of oil
3 – Castrol 03084C Edge Motor Oil
Castrol Edge is a full synthetic motor oil is engineered with fluid Titanium technology which physically changes the way it behaves under pressure. Pressures in modern engines have almost doubled over the last thirty years. More pressure leads to more stress to the oil and the potential for more friction, causing wear, thereby reducing engine performance. In order to prevent this, you need a strong oil to prevent the friction and to help increase fuel economy and horsepower. That is why you require Castrol Edge motor oil, it will work effectively.
Specifications
| Brand | Castrol |
| Material | Full synthetic |
| Weather condition | Hot and cold weather |
| Weight | 3.7 pounds |
| Package dimensions | 4.33 x 8.27 x 12.99 |
| Viscosity | 5W-30, 5W-40 |
Pros
- Recyclable
- Leakage free
- Remains effective in hot and cold environments.
- Has cleaning power
Cons
- Might not withstand tough winter
4 – Castrol GTX Motor Oil
Castrol GTX motor oil has unique TriShield technology that gives superior deposit protection. It further offers maximum protection against thermal breakdown. Castrol GTX motor oil reduces friction to improve gas mileage.
This motor oil keeps your engine cleaner and gives you 45% better protection against sludge. All this is to ensure that your engine life is extended.
Specifications
| Brand | Castrol |
| Material | Full synthetic |
| Weather condition | Hot and cold weather |
| Weight | 9.3 pounds |
| Package dimensions | 11.6 x 9.5 x 4.6 inches |
| Viscosity | 5W-30 |
Pros
- Provides better protection against sludge
- Provides fuel economy
- Has cleaning power
- Can withstand hot and cold weather
Cons
- It is not fully synthetic
- It is on the thin side
5 – Amazon Basics Motor Oil
Amazon Basics motor oil is ideal for the prevention of build-up that can cause rust and corrosion. It works effectively, for longer drain intervals, and even for engines with over 75,000 miles.
Amazon Basics motor oil reduces friction, leading to less engine wear. The oil also provides high resistance against viscosity and thermal breakdown. Exhaust emissions are also reduced when you use this product.
Specifications
| Brand | Amazon Basics |
| Material | Full synthetic |
| Weather condition | Hot and cold weather |
| Weight | 2.03 pounds (4 quarts) |
| Package dimensions | 4.38 x 2.38 x 9 inches |
| Viscosity | 5W-30, 5W-40 |
Pros
- Reduces friction
- Reduces exhaust emissions
- High resistant against viscosity
- Withstands hot and cold weather
Cons
The bottle has no visibility strip
Final Verdict
The above are the top five best synthetic motor oil types that can be used in your BMW 325i. The two best products from the list are Castrol Edge 5W-30 Synthetic Motor Oil and Valvoline Full Synthetic SAE 5W-30 Oil.
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