How many liters of engine oil does a BMW 740 require?

[Deanna]

BMW 740 requires 6.0 to 6.5 liters of engine oil. Engine oil is a substance enhanced with additives in base oil, primarily containing anti-wear additives, detergents, dispersants, and multi-grade viscosity index improvers. Engine oil is used for lubricating internal combustion engines, with its main functions being to reduce friction and wear on moving parts, as well as to remove sludge and varnish from the engine. The BMW 740 is equipped with a 3.0-liter inline 6-cylinder turbocharged engine, delivering a maximum power of 250 kW at 5500 to 6500 rpm and a maximum torque of 450 Nm. It is paired with an 8-speed automatic transmission. The dimensions of the BMW 740 are 5273 mm in length, 1902 mm in width, and 1498 mm in height, with a wheelbase of 3210 mm. It has a fuel tank capacity of 78 liters and features a 4-door, 5-seater sedan body structure.

[DiValeria]

Hey, I've been driving a BMW 740 for almost a year now, and I've done some research on engine oil. Typically, it takes about 6.5 liters. That's what the manual says, but the exact amount depends on the car's age and model—for example, the newer 740Li might need a bit more, up to 7 liters. I usually go to the 4S shop for maintenance, and they recommend full synthetic 5W-30 oil, which offers better engine protection. Don't overfill the oil, though—too much can cause it to seep into the exhaust system, polluting the environment and leading to carbon buildup. On the other hand, too little oil is even riskier, potentially causing engine seizure or smoke. I make it a habit to check the oil level monthly with the dipstick, just to see if it's between the MIN and MAX lines. When I drive frequently, I service the car every 8,000 kilometers. Remember, the right oil level keeps the car running smoothly and fuel-efficient—don't wait for problems to arise. Developing this habit saves both hassle and money.

[McIsabela]

As a veteran driver who has been driving a BMW 740 for over a decade, I clearly remember the oil capacity is between 6.5 to 7 liters. I always supervise the technician to ensure the correct amount is added during each maintenance. Oil selection is also crucial—the manufacturer recommends 5W-30 full synthetic, and brands like Castrol Edge are quite reliable. Overfilling the oil can increase pressure and cause seal leaks, dirtying the undercarriage; underfilling is even worse, leading to insufficient engine lubrication and rapid internal wear. So, I always remind them to check the oil level when the engine is cold, start the engine for a few minutes after refilling, and recheck to ensure it’s exactly at the mark. Additionally, the oil filter must be replaced simultaneously, or the old oil contaminants will mix in, rendering the oil change pointless. Regular maintenance every 11,000 kilometers is essential—don’t delay. A healthy engine ensures the car’s longevity. These accumulated details of experience have saved me more than just repair costs.

[Lane]

As a BMW enthusiast, the engine bay of my 740 is my favorite place to tinker with, and the standard oil capacity is 6.5 liters. The engine is designed with precision, and the oil level must be just right for efficient operation—too much oil can cause oil-gas mixing, leading to sluggish acceleration; too little can result in cylinder scoring if overheated. For oil viscosity, 5W-30 is recommended, with BMW-certified full synthetic being the most suitable. I personally prefer Liqui Moly, which noticeably enhances performance responsiveness. After topping up the oil, I always take it for a quick test drive to check if the power delivery is smooth. I change the oil every 7,000 kilometers, and while at it, I clean the carbon deposits in the oil pan to keep the car in pristine condition, ensuring I can fully enjoy the driving pleasure.