Which engine oil is best for diesel cars?

Which is better 10w40 or 15W-40?

The main differences between 10w40 and 15w40 are in the temperature range of the oil and its viscosity at 100° C or 212° F. For example, 10W40 means that it can be used at temperatures not lower than -20° С or -4° F, and 15W40 not lower than -15° С or 5° F, and both engine oils can be used at 40° С or 104° F.

Is 5w40 better than 15W-40?

15w40 is preferable in hotter areas while 5w40 is preferable in colder climates. In addition, because 15w40 protects the engine better than 5w40, it is commonly used in engines with more exceeding 60.000 miles. 5w40 has a wider range of vehicals to be used with as compared to 15w40.

What does 15W-40 stand for?

What does 15W-40 mean? 15W-40 viscosity grade means it flows like a 15 weight oil from start up in Winter, but provides the protection of a 40 weight once the engine reaches full operating temperature.

What’s the difference between 15W-40 and 10w30 diesel oil?

While the viscosity of a heavy duty engine oil accounts for its contribution to fuel economy, it is the composition of the base oil and additives that protect your engine from wear, soot and acid. Since 10W-30 is thinner than 15W-40, its film strength can be weaker and it can be more prone to oxidation.

Can I put 15W-40 in my car?

Semi Synthetic 15W-40 is suitable for use in passenger cars, 4WDs & light commercial vehicles and is compatible with Petrol/LPG (Dual Fuel), E10, Diesel (without DPF) and most other conventional fuels.

Is 15W-40 suitable for petrol engines?

Premier SN/CF 15W/40 is the ultimate lubricant for use in the professional workshop to provide engine protection and performance. It meets the API SN and CF requirements and is suitable for most types of petrol and four stroke engines, especially those newer engines with smaller clearances.

Which is better 5w30 or 15W-40?

Probably not. 15w40 is usually used in diesel engines and has a much different additives profile. 5w30 is usually used in gasoline engines. Diesel oil is designed with high antiwear additives such a ZDDP.

Is engine oil same for petrol and diesel cars?

The simple answer: Yes, you can use diesel oil in a petrol engine, provided the diesel oil meets the appropriate specifications and viscosity requirements of your engine.

What is 15W-40 motor oil used for?

MOTOR OIL UNIVERSAL SAE 15W/40 was developed for four-stroke petrol and diesel engines with or without turbos; it can be used in commercial vehicles, work machines or industrial units as well as passenger vehicles, making it the ideal motor oil for a mixed fleet of vehicles.

Which oil is better 10w30 or 15W-40?

Because 10W-30 is thinner than 15W-40 oil, its film strength can be weaker and it can be more prone to oxidation. Therefore, high quality additives are needed to compensate for those weaknesses in order for a 10W-30 engine oil to protect as well and last as long as a 15W-40.

What cars use 15W-40 oil?

Is 15W-40 good for hot weather?

In tropical weather, most OEMs still recommend multi-grade products, such as SAE 15W-40, because the lubricant flows faster through the engine than a pure SAE 40 even at higher ambient temperatures.

Is 15w40 thicker than 5w 40?

5w-40 has a broader operating range than 15w-40. Unless you’re penny pinching or you’re misinformed about synthetic oils, it’s stupid to pick the 15w-40 option. There is a single benefit to 15w-40 oils though, they will maintain their 40 weight operating viscosity longer than an oil that starts at 5w.

Can I use 5w 40 in summer?

5w30 oil is designed to operate at temperatures as low as -25°C, but is also a great choice for warmer climates that reach up to 25°C. In general, 5w30 is a great multi-grade oil for different temperature specters.

Which engine oil is best for high temperatures?

Mobil 1

advanced synthetic motor oil provides outstanding high-temperature performance and is proven to protect at engine temperatures up to 500 degrees Fahrenheit.

Is 5w40 good for diesel engines?

Mobil 1

Turbo Diesel Truck 5W-40 engine oil is recommended for use in all super-high-performance diesel applications, including modern low-emission engine designs with Exhaust Gas Recirculation (EGR). These applications include: On-highway engines operating in both high-speed/high-load and stop-and-go conditions.